Entries |
Document | Title | Date |
20080199015 | INFANT SPEECH RECORDING DEVICE - A portable recording device to capture a child's first words without the need for constant surveillance, as well as provide additional monitoring functions. | 08-21-2008 |
20080199016 | Method for ascertaining the noise emission of an internal combustion engine - Methods for ascertaining the combustion noises of an internal combustion engine need only a structure-borne noise sensor and may be carried out using little computing power. | 08-21-2008 |
20080212787 | EARHEALTH MONITORING SYSTEM AND METHOD I - At least one exemplary embodiment is directed to a method of operating an audio device comprising: calculating estimated sound pressure levels for drive signals directed to an ear canal receiver (ECR) during a time increment Δt; calculating an estimated SPL_Dose during the time increment Δt using the estimated sound pressure levels; and calculating a total SPL_Dose at the time t of the audio device using the estimated SPL_Dose. | 09-04-2008 |
20080219456 | ACOUSTIC DAMPENING COMPENSATION SYSTEM - At least one exemplary embodiment is directed to an acoustic management system configured to compensate for acoustical dampening comprising: a microphone configured to detect a first acoustic signal from an acoustic environment; and a logic circuit, where the logic circuit detects an onset of acoustical dampening between the acoustic environment and the microphone, and where the logic circuit generates an acoustic damping compensation filter, where the acoustic damping compensation filter is applied to the first acoustic signal generating a drive signal. | 09-11-2008 |
20080240450 | Systems and methods for logging acoustic incidents - Systems and methods for logging acoustic incidents. An exemplary system includes a transducer configured to receive an electrical signal from an electrical signal source and produce a corresponding acoustic signal, a recording system operable to record the electrical signal from the electrical signal source, and an incident estimation and control system coupled to the recording system to estimate an acoustic incident and to instruct the recording system to record the electrical signal that is producing the acoustic incident. The system can replay the recorded electrical signal through the same transducer that was in use at the time of the acoustic incident, to exactly reproduce the sound that occurred. | 10-02-2008 |
20080260167 | SOUND QUALITY DISPLAY APPARATUS, SOUND QUALITY DISPLAY METHOD, COMPUTER READABLE MEDIUM ON WHICH SOUND QUALITY DISPLAY PROGRAM IS RECORDED AND SOUND CAMERA - Disclosed are a sound quality display apparatus, a sound quality display method, a computer readable medium on which a sound quality display program is recorded, and a sound camera. The apparatus includes a sound detector detecting sound generated from a sound source, a background photographing unit photographing background where the sound source is positioned, a sound source signal generator creating a sound source signal as a sound signal at a sound source plane where the sound source is positioned by analyzing the sound signal detected by the sound detector, a sound quality data generator creating sound quality data at the sound source plane by processing of the sound source signal, and a display displaying sound quality image data created by overlaying image data of the background photographed by the background photographing unit with the sound quality data. | 10-23-2008 |
20080267415 | PORTABLE ELECTRONIC DEVICE - A portable electronic device includes a player, a speaker, a control circuit, a switch circuit, and a current limiter. The player is for outputting analog audio signals. The speaker is for transforming the analog audio signals into sound. The control circuit is for generating a first control signal when ambient light intensity is lower than a predetermined value. The switch circuit is for turning on and transmitting the analog audio signals to the speaker when receiving the first control signal. The current limiter is for transmitting the analog audio signals to the speaker when the switch circuit turns off, and for limiting a current flowing through the speaker. | 10-30-2008 |
20080267416 | Method and Device for Sound Detection and Audio Control - At least one exemplary embodiment is directed to a listening device ( | 10-30-2008 |
20080267417 | EQUALIZER AND RELATED SIGNAL EQUALIZING METHOD - An equalizer is disclosed. The equalizer includes a filter, configured to receive the first transmission signal, to perform a filtering operation on the first transmission signal according to a feedback signal to generate an output signal; a first slicer, configured to generate a first sliced signal according to a signal level of the output signal and to adjust an amplitude of the first sliced signal according to an amplitude control signal; a boost control module, configured to generate the feedback signal according to the output signal and the first sliced signal; and a control circuit, configured to receive a second transmission signal on the transmission line and to output the amplitude control signal according to an amplitude of the second transmission signal. | 10-30-2008 |
20080273707 | Audio Processing - An audio processing apparatus in which two audio signals are compared to establish differences between the two audio signals. The apparatus derives, from the two audio signals, a transform response representing a relationship between the two audio signals; applies the transform response to one of the audio signals so as to generate a transformed signal which is more like the other audio signal; and detects a difference signal representing differences between the transformed audio signal and the other audio signal. | 11-06-2008 |
20080292107 | NOISE ANALYSIS AND EXTRACTION SYSTEMS AND METHODS - Systems and methods are described which facilitate quick and accurate extraction of the true noise level from a noise signal that includes additional signals, such as speech, in a cost effective implementation. Aspects of the invention allow the use of one microphone to simultaneously detect background noise as well as speech, while avoiding problems associated with artificially high background noise indication due to inclusion of the speech component in the noise determination. Additionally, systems and methods are described for altering system gain based on accurate noise level determinations. | 11-27-2008 |
20080298598 | MUSIC DETECTING APPARATUS AND MUSIC DETECTING METHOD - According to one embodiment, there is provided a music detecting apparatus including; a first detecting unit configured to detect, based on a sound volume ratio of two channels included in the information, a music section included in an information; a second detecting unit configured to detect a commercial message section included in the information; and a processing unit configured to process, based on a ration of an overlapping section between the music section and the commercial message section to the music section, the music section as a non-music section, if the music section at least partly overlaps with the commercial message section. | 12-04-2008 |
20080304672 | Target sound analysis apparatus, target sound analysis method and target sound analysis program - A target sound analysis apparatus capable of distinguishing between a sound having the same fundamental period as a target sound but which differs therefrom and the target sound and analyzing whether or not the target sound is contained in an evaluation sound is an target sound analysis apparatus that analyzes whether or not a target sound is included in an evaluation sound, and includes: a target sound preparation unit that prepares a target sound that is an analysis waveform to be used for analyzing a fundamental period; an evaluation sound preparation unit that prepares an evaluation sound that is an analyzed waveform in which its fundamental period will be analyzed; and an analysis unit that temporally shifts the target sound with respect to the evaluation sound to sequentially calculate differential values of the evaluation sound and the target sound at corresponding points in time, calculate an iterative interval between the points in time where the differential value is equal to or lower than a predetermined threshold value, and judge whether or not the target sound exists in the evaluation sound based on a period of the iterative interval and the fundamental period of the target sound. | 12-11-2008 |
20090016540 | AUDITORY PERCEPTION CONTROLLING DEVICE AND METHOD - “A method of automatically performing adjustment of audio control settings in an audio system, whereby at least a part of the audio control settings is adjusted according to automatic audio control setting adjustment routines via at least one remote control receiver of the audio system;
| 01-15-2009 |
20090052677 | SOUND MONITORING, DATA COLLECTION AND ADVISORY SYSTEM - A sound monitoring system and method. The system can include a plurality of sound pressure level meters, a plurality of sound level indicators and a server connected by a network. The sound pressure level meters measuring a sound level at their location, and the sound level indicators providing a visual indication of the sound level measured by at least one of the sound pressure level meters. The system devices can be powered, as well as monitored and controlled remotely over the network. A user interface enables constructing and monitoring multiple zones and groups in a monitored area, as well as reviewing real-time and historical sound data. The system can also control lighting in the monitored area, and use lighting as a visual indicator of noise level. | 02-26-2009 |
20090060211 | Method and System for Music Detection - Methods, digital systems, and computer readable media are provided for detection of music in an audio signal. Music is detected by partitioning the audio signal into overlapping frames, determining a fundamental frequency of a frame in the overlapping frames, including the fundamental frequency of the frame in a histogram of fundamental frequency values of frames occurring in the audio signal prior to the frame, and indicating that music is present in the audio signal when a number of occurrences of a fundamental frequency value in the histogram exceeds a threshold. | 03-05-2009 |
20090097664 | Applause Attenuation System - A method and apparatus for attenuating applause from a satellite radio signal, including, a spectrum analyzer and comparator having an internal memory for obtaining a spectral signature of different sounds in the radio signal, a detector automatically detecting whether the sounds contain applause, an attenuator attenuating the sounds containing applause; and a digital to analog converter converting the attenuated sounds for audio listening. A comparator compares applause in the radio signal to a threshold level and disables the attenuator when the applause abates below the threshold level. | 04-16-2009 |
20090103739 | Method and Apparatus to Facilitate Use of Background Noise When Providing Secure Access to Equipment - A user interface device provides secure access to equipment. An audio reception device is adapted to receive an audio input comprising background noise and to receive an audio user code from a user. A user input device receives a manual input comprising a manual user code from the user. A control unit stores one or more target user codes and receives an audio input and determines a noise level of the background noise. An instruction message is generated to inform the user to enter the manual user code in response to the noise level of the background noise exceeding a predetermined threshold level. An output device provides the instruction message to the user. A control unit provides secure access to the equipment in response to at least one of the audio user code and the manual user code. | 04-23-2009 |
20090122996 | EARPLUG SEALING TEST - Methods and system for a sealing test comprising the steps of: sealing a predefined volume of gas; sampling a predefined frequency range, whereby there is no need to inject a predefined sound wave while sampling the predefined frequency range; and determining whether the predefined volume of gas is sealed or unsealed according to the sampled frequency range. | 05-14-2009 |
20090161882 | Method of Measuring an Audio Signal Perceived Quality Degraded by a Noise Presence - A method of calculating an objective score (NOS) of the perceived quality of an audio signal degraded by the presence of noise and processed by a noise reducing function, said method comprising a preliminary step of obtaining a predefined test audio signal (x[m]) containing a wanted signal free of noise, a signal (xb[m]) affected by noise obtained by adding a predefined noise signal to the test signal (x[m]), and a processed signal (y[m]) obtained by applying the noise reducing function to the signal (xb[m]) affected by noise. This method includes a step (a | 06-25-2009 |
20090169022 | SYSTEMS AND METHODS FOR IMPROVED OVER-CURRENT CLIPPING - Systems and methods for implementing over-current protection in amplifiers are provided, including systems, methods and devices for specifying a clip level at which to clip an audio signal in response to an over-current condition being detected. In an embodiment, the clip level is reduced while the over-current condition is being detected. Once the over-current condition is no longer detected, the clip level is maintained for a specified period before allowing the clip level to be increased. In an embodiment, the specified period, for which the clip level is maintained before the clip level is allowed to be increased, starts when the over-current condition is no longer detected, and ends when each of N immediately preceding sample(s) of the audio signal are not clipped to the clip level, where N is an integer, and N≧1. After an over-current condition is no longer detected, and after the clip level has been maintained for the specified period, the clip level can be increased if an over-current condition is not detected for a sample and the clip level is below a specified maximum clip level. | 07-02-2009 |
20090180627 | Active sound blocker - A noise reduction system for actively blocking a noise source for a means of transport. The noise reduction system comprises at least one counter sound source and at least one intensity sensor. The at least one counter sound source and the at least one intensity sensor are arranged in a measuring region. In the measuring region, measuring of the noise intensity of the noise source and measuring of the counter sound intensity of the counter sound source are by the intensity sensor. Based on the measured noise intensity and the counter sound intensity, the counter sound source is controllable such that the sound energy input of the noise source can be globally reduced by the counter sound source. | 07-16-2009 |
20090196431 | APPARATUS AND METHOD FOR MONITORING SOUND IN A PROCESS SYSTEM - A method for monitoring sound in a process system is provided that includes sensing sound at a specified location, capturing the sensed sound as sound data, and forwarding the sound data from the specified location to a process control system. The sound data is analyzed at the process control system and a determination is made regarding whether or not to issue a warning based on the analysis of the sound data. For a particular embodiment, the analysis of the sound data includes comparing the sound data to at least one stored sound, and the determination regarding whether or not to issue a warning based on the analysis of the sound data is made based on a level of similarity between the sound data and the stored sound. | 08-06-2009 |
20090208024 | APPARATUS FOR REDUCING THE RISK OF NOISE INDUCED HEARING LOSS - An apparatus is disclosed for managing the joint contribution of noise exposure of the ear of a user of the apparatus from a loudspeaker of the apparatus as well as from ambient noise so that the risk of risk of noise induced hearing losses is reduced. By assessing the joint actual sound energy delivered to the ear and feeding said assessment to a model describing the accumulated risk of hearing loss due to said sound energy accumulated over a time period, an estimate of the current risk of hearing loss is obtained. When said risk estimate passes a predetermined threshold, one or more protective measures are taken. | 08-20-2009 |
20090232318 | OUTPUT CORRECTING DEVICE AND METHOD, AND LOUDSPEAKER OUTPUT CORRECTING DEVICE AND METHOD - A loudspeaker output correcting device operable under control of a control element, and comprising a first loudspeaker for outputting a first test signal, a second loudspeaker for outputting a second sound signal including a second test signal such that the phase of the second test signal is almost the same as that of the first one and when the second test signal is combined with the first one, the power characteristic is a constant value, sound collecting element for collecting the outputted first and second test signals, computing element for computing the difference between the first distance between the first loudspeaker and the sound collecting element and the second distance; between the second loudspeaker and the sound collecting element from the spectrum of the combined signal produced by combining the collected first and second signals, and correcting element for correcting the output relative characteristics of the first and second loudspeakers. | 09-17-2009 |
20090238369 | SYSTEMS AND METHODS FOR DETECTING WIND NOISE USING MULTIPLE AUDIO SOURCES - A method for detecting wind noise is described. At least two audio signals are received. The at least two audio signals are filtered to reduce higher frequencies and to reduce lower frequencies to provide at least two filtered audio signals. The cross correlation of the at least two filtered audio signals is computed for multiple delays. A maximum cross correlation is determined from the cross correlations computed for the multiple delays. Wind noise is detected by comparing the maximum cross correlation with a threshold. | 09-24-2009 |
20090252341 | Adaptive Primary-Ambient Decomposition of Audio Signals - A stereo audio signal is processed to determine primary and ambient components by transforming the signal into vectors corresponding to subband signals, and decomposing the left and right channel vectors into ambient and primary components by matrix and vector operations. Principal component analysis is used to determine a primary component unit vector, and ambience components are determined according to a correlation-based cross-fade or an orthogonal basis derivation. | 10-08-2009 |
20090268919 | METHOD AND APPARATUS TO MEASURE HEARING ABILITY OF USER OF MOBILE DEVICE - Provided are a method and apparatus to measure in real time the hearing ability of a user in a game environment of a mobile device. The method includes generating a series of sound patterns and visual patterns for a combination of a specific frequency and level of sound, and extracting ear characteristics of the user based on the user's responses to the series of sound patterns and visual patterns. | 10-29-2009 |
20090274309 | METHOD AND SYSTEM FOR EQUALIZING A LOUDSPEAKER IN A ROOM - A method and a system for equalizing one or more loudspeaker(s), e.g. a hi-fi system, positioned in a room in order to compensate sound reproduction from the loudspeaker for an influence of the room. The method includes measuring a listening position transfer function (L) from electrical input of the loudspeaker (L | 11-05-2009 |
20090296945 | Method and device for evaluating the annoyance of squeaking noises - A method for evaluating the annoyance of squeaking noise within an audible signal generated during operation of a motor vehicle or one of its components. The existence of at least one squeaking noise is detected, this at least one squeaking noise being evaluated with regard to at least two predetermined characteristics, and a variable characterizing the annoyance of this at least one squeaking noise being determined from the at least two evaluations of this at least one squeaking noise. | 12-03-2009 |
20090304190 | Audio Signal Loudness Measurement and Modification in the MDCT Domain - Processing an audio signal represented by the Modified Discrete Cosine Transform (MDCT) of a time-sampled real signal is disclosed in which the loudness of the transformed audio signal is measured, and at least in part in response to the measuring, the loudness of the transformed audio signal is modified. When gain modifying more than one frequency band, the variation or variations in gain from frequency band to frequency band, is smooth. The loudness measurement employs a smoothing time constant commensurate with the integration time of human loudness perception or slower. | 12-10-2009 |
20090310792 | DETERMINATION OF PRESENCE INFORMATION ABOUT A PRESENTITY BY ANALYSING AN AUDIO SIGNAL FROM A TERMINAL ASSOCIATED WITH THE PRESENTITY - The invention relates to a method of determining presence information about at least one presentity. In particular, the invention is concerned with a method of determining presence information about at least one presentity, the method comprising: accessing an audio signal from a terminal associated with the at least one presentity, analysing the audio signal to determine information regarding the presence of the at least one presentity, providing the presence information as a presence service to a third party. The invention further relates to a presence service system, a user terminal comprising means operable to perform the method of the invention, a communications network comprising a terminal, the presence service system being operable to perform the method of the invention and a computer readable storage medium storing a program which when run on a computer controls the computer to perform the method of the invention. | 12-17-2009 |
20090316915 | Sound Processing apparatus and method - Mask generation section generates an evaluating mask, indicative of a degree of dissonance with a target sound per each frequency along a frequency axis, by setting, for each of a plurality of peaks in spectra of the target sound, a dissonance function indicative of relationship between a frequency difference from the peak and a degree of dissonance with a component of the peak. Index calculation section collates spectra of an evaluated sound with the evaluating mask to thereby calculate a consonance index value indicative of a degree of consonance or dissonance between the target sound and the evaluated sound. | 12-24-2009 |
20100014681 | NOISE SUPPRESSION METHOD, DEVICE, AND PROGRAM - The noise suppression device includes: a shock noise detection unit which receives an input signal including a shock noise and detects a shock noise according to a change of the input signal; and a shock sound suppression unit which receives the shock sound detection result and the input signal so as to suppress the shock sound. | 01-21-2010 |
20100046763 | SOUND PICKUP APPARATUS - An A/D converter sets a sound pickup signal to low sensitivity and inputs the signal to a sound pickup beam generation unit. The A/D converter sets a sound pickup signal to high sensitivity and inputs the signal to the sound pickup beam generation unit. A sound detector determines from the sound pickup beam whether or not sound is present and whether or not clipping has arisen. A control unit inputs a determination result from the sound detector, thereby setting an encoder such that a low-level sound pickup beam signal is output to the outside when a high-level sound pickup beam signal is clipped. | 02-25-2010 |
20100067708 | SYSTEM AND METHOD FOR AUTOMATICALLY UPDATING PRESENCE INFORMATION BASED ON SOUND DETECTION - A system, method and computer program that utilizes sound detection circuitry to automatically update presence information associated with portable electronic equipment. Aspects of the present invention provide reliable presence information regarding the availability of the user based on sounds detected at or near the electronic equipment. | 03-18-2010 |
20100067709 | Loudness Measurement with Spectral Modifications - The perceived loudness of an audio signal is measured by modifying a spectral representation of an audio signal as a function of a reference spectral shape so that the spectral representation of the audio signal conforms more closely to the reference spectral shape, and determining the perceived loudness of the modified spectral representation of the audio signal. | 03-18-2010 |
20100086137 | INTEGRATED AMBIENT AUDIO TRANSFORMATION DEVICE - A method and device for transforming ambient audio are provided. Example embodiments may include monitoring ambient audio proximate to a sound processing device located in an environment. The device may access memory to obtain transformation audio and generate output transformation audio based on the transformation audio and the ambient audio to provide modified output audio for propagation into the environment. The device may at least reduce feedback of the modified output audio received by the sound processing device from the environment. | 04-08-2010 |
20100086138 | AMBIENT AUDIO TRANSFORMATION MODES - A method and device for transforming ambient audio are provided. Example embodiments may include monitoring ambient audio proximate to a sound processing device located in an environment. The device may receive a selection from a user interface. The selection may comprise one of a number of available first selections, each available first selection identifying one of multiple transformation modes. The device may access memory to obtain transformation audio and process the transformation audio, based on the ambient audio and the selection. The device may also use the transformation audio to provide modified output audio for propagation into the environment. | 04-08-2010 |
20100086139 | ADAPTIVE AMBIENT AUDIO TRANSFORMATION - A method and device for transforming ambient audio are provided. Example embodiments may include monitoring ambient audio proximate to a sound processing device located in an environment. The device may sense environmental conditions associated with the environment. Memory may be accessed to obtain transformation audio. The device may generate output transformation audio based on the transformation audio, the ambient audio, and the environmental conditions to provide modified output audio for propagation into the environment | 04-08-2010 |
20100086140 | TONE DETECTOR AND METHOD USED IN A ROBOT FOR DETECTING A TONE - A tone detection device for detecting whether an input signal having a tone. The device includes a volume gain calculation unit performing a volume gain treatment on frame data and outputting the volume-gain-treated frame data and energy in time domain thereof, a threshold calculation unit calculating a threshold value on the basis of the energy of the volume-gain-treated frame data, a filter transforming the volume-gain-treated frame data by an algorithm and outputting a characteristic value in a first period, and a comparator comparing the first characteristic value and the threshold value to generate a result and determining the frame data of the input signal has the tone on the basis of the result. | 04-08-2010 |
20100098260 | ROBUST PIPE-STRIKE PULSE DETECTOR - A method for discriminating a noise pulse from a background noise in which a signal of interest is converted to an envelope signal using an entropy-based envelope generator, which envelope signal is then integrated over a plurality of consecutive integrative periods, producing an integrated envelope signal for each of the integration periods. The ratio of the envelope signal at the end of each of the integration periods corresponding to each corresponding said integrated envelope signal is determined and compared with a predetermined threshold signal for each of the integration periods, resulting in a comparison value. The integration period in which the comparison value exceeds the predetermined threshold signal and which is preceded by two integration periods in which the comparison value does not exceed the threshold value represents the point in time at which the noise pulse is detected. | 04-22-2010 |
20100104107 | SYSTEM AND METHOD FOR REDUCING VOLUME SPIKE IN AN ELECTRONIC DEVICE - A system and method for reducing volume spike during switching of audio output devices of an electronic device is provided. The system and method adjusts a volume level of a first audio output device currently adopted by the electronic device for audible output to a muted level, and switches the audible output from the first audio output device to a second audio output device with the muted level. The system and method further receives a desired volume level input by a user, and adjusts the second audio output device from the muted level to the desired volume level. | 04-29-2010 |
20100111312 | METHOD AND SYSTEM OF REAL-TIME IDENTIFICATION OF AN AUDIOVISUAL ADVERTISEMENT IN A DATA STREAM - Method and system of identification of at least one audiovisual advertisement in a data stream, such as a digital television broadcasting, by detecting energy drops in an audio stream of the data stream and comparing a segment of the audio stream starting at the energy drop with an audio segment of the advertisement. The comparison step requires only a few seconds of data to perform the detection. Therefore, the identification of the advertisement is provided before the end of the advertisement in the data stream. | 05-06-2010 |
20100111313 | Sound Processing Apparatus, Sound Processing Method and Program - There is provided a sound processing apparatus including a sound separation unit that separates an input sound into a plurality of sounds caused by a plurality of sound sources, a sound type estimation unit that estimates sound types of the plurality of sounds separated by the sound separation unit, a mixing ratio calculation unit that calculates a mixing ratio of each sound in accordance with the sound type estimated by the sound type estimation unit, and a sound mixing unit that mixes the plurality of sounds separated by the sound separation unit in the mixing ratio calculated by the mixing ratio calculation unit. | 05-06-2010 |
20100119074 | DEVICE AND METHOD FOR EVALUATING THE SOUND EXPOSURE OF AN INDIVIDUAL - The invention relates to a device for evaluating the sound exposure of an individual ( | 05-13-2010 |
20100124335 | Scoring a match of two audio tracks sets using track time probability distribution - A method and a system are provided for scoring a match of two audio tracks sets using a track time probability distribution. In one example, the system receives the two audio tracks sets, including a first audio tracks set and a second audio tracks set. Next, the system extracts track times of the first audio tracks set and corresponding track times of the second audio tracks set. The system then calculates a total weighted score of the match of the two audio tracks set, wherein the total weighted score is based on a track time probability distribution and a comparison between the track times of the first audio tracks set and the corresponding track times of the second audio tracks set. | 05-20-2010 |
20100128881 | Acoustic Voice Activity Detection (AVAD) for Electronic Systems - Acoustic Voice Activity Detection (AVAD) methods and systems are described. The AVAD methods and systems, including corresponding algorithms or programs, use microphones to generate virtual directional microphones which have very similar noise responses and very dissimilar speech responses. The ratio of the energies of the virtual microphones is then calculated over a given window size and the ratio can then be used with a variety of methods to generate a VAD signal. The virtual microphones can be constructed using either an adaptive or a fixed filter. | 05-27-2010 |
20100142715 | Sound Library and Method - At least one exemplary embodiment is directed to a website configured to collect sound signatures from around the world and beyond. A communication device automatically stores acoustic information received by a microphone of the communication device. The acoustic information is analyzed for a trigger event. The trigger event stores the acoustic information, attaches metadata, creates a Gaussian Mixture Model, and measures sound pressure level. The communication device automatically sends the sound signature to a database when a communication path is opened to communication device. Each sound signature has associated metadata including a time stamp and geocode. Automatically collecting sounds using a communication device adapted for the process enables a database that captures sounds globally on a continuous basis. | 06-10-2010 |
20100158260 | DYNAMIC AUDIO MODE SWITCHING - In one embodiment, a method and apparatus for processing an audio signal are provided. In one example of the invention, an audio signal is received. The audio signal is classified as a high quality signal or a low quality signal based upon a determination of the bandwidth, signal source, and/or signal type of the audio signal. The audio signal is further processed responsive to whether the audio signal is classified as a high quality signal or a low quality signal. | 06-24-2010 |
20100158261 | SOUND QUALITY CORRECTION APPARATUS, SOUND QUALITY CORRECTION METHOD AND PROGRAM FOR SOUND QUALITY CORRECTION - According to one embodiment, various feature parameters are calculated for distinguishing between a speech and music and between music and background sound for an input audio signal. With the feature parameters, score determination is made as to whether the input audio signal is close to a speech signal or a music signal. If the input audio signal is determined to be close to music, the preceding score determination result is corrected considering the influence of background sound. Based on the corrected score value, a sound quality correction process for a speech or music is applied to the input audio signal. | 06-24-2010 |
20100183159 | Method and System for Spatialization of Sound by Dynamic Movement of the Source - The invention relates to a method and the system for algorithmic processing of signals for sound spatialization making it possible to associate sound signals with information that has to be located by a listener, the spatialized sound signals being defined by a virtual position of origin corresponding to the position of the information wherein by algorithmic processing, a spatialized sound signal has an oscillatory movement applied to it describing a sequence of virtual positions of the said signal around the virtual position of origin. | 07-22-2010 |
20100189268 | ACOUSTIC IN-EAR DETECTION FOR EARPIECE - An apparatus comprising an earpiece and a signal processor is disclosed. The earpiece is suitable to be applied at an auditory opening of a user's ear. The earpiece comprises a speaker enabled to be supplied with an audio signal for rendering, and a microphone arranged in vicinity of the speaker to acquire a sound signal from sounds present inside the auditory opening when the earpiece is applied at the ear. The signal processor is arranged to determine whether the earpiece is applied at the user's ear by analysis of the acquired sound signal comprising any of a sound signal component of an in-ear sound type present when the earpiece is applied or an outside-ear sound type present when the earpiece is not applied. A method and a computer program are also disclosed. | 07-29-2010 |
20100189269 | ACOUSTIC IN-EAR DETECTION FOR EARPIECE - An apparatus comprising at least one earpiece suitable to be applied at an auditory opening of a user's ear and a signal processor is disclosed. The earpiece comprises a speaker enabled to be supplied with an audio signal for rendering, and a microphone arranged in vicinity of the speaker arranged to acquire a sound signal. The signal processor is arranged to determine whether the earpiece is applied at the user's ear by analysis of the acquired sound signal, wherein the analysis is based on the acoustic coupling of the audio signal to the microphone. A method and a computer program are also disclosed. | 07-29-2010 |
20100189270 | SOUND VOLUME CORRECTING DEVICE, SOUND VOLUME CORRECTING METHOD, SOUND VOLUME CORRECTING PROGRAM, AND ELECTRONIC APPARATUS - A sound volume correcting device includes: a variable gain unit controlling a gain of an input audio signal on the basis of a gain control signal; a voice average level detector detecting an average level of a human voice signal in the input audio signal; and a gain control signal generator generating the gain control signal for controlling the gain of the input audio signal using the average level of the human voice signal detected by the voice average level detector as a reference level and supplying the generated gain control signal to the variable gain unit. | 07-29-2010 |
20100189271 | Audio Source Detection System - In a sound source localization system using a light emitting device for visualizing sound information, including: a light emitting device ( | 07-29-2010 |
20100195837 | AUDIO SIGNATURE EXTRACTION AND CORRELATION - A signature is extracted from the audio of a program received by a tunable receiver such that the signature characterizes the program. In order to extract the signature, blocks of the audio are converted to corresponding spectral moments. At least one of the spectral moments is then converted to the signature. Also, a test audio signal from a receiver is correlated to a reference audio signal by converting the test audio signal and the reference audio signal to corresponding test and reference spectra, determining test slopes corresponding to coefficients of the test spectrum and reference slopes corresponding to coefficients of the reference spectrum, and comparing the test slopes to the reference slopes in order to determine a match between the test audio signal and the reference audio signal. | 08-05-2010 |
20100208901 | MUSIC PLAYING APPARATUS, MUSIC PLAYING METHOD, MUSIC PLAYING PROGRAM, AND INTEGRATED CIRCUIT - A music playing apparatus includes: a sound and silence determining unit determining whether or not each frame included in first and second output PCM data is a sound frame including a sample having an output level not lower than a predetermined threshold; a connection point extracting unit extracting a candidate connection point being a sample having a largest variation in a lean of a PCM waveform, from each of the determined sound frames; an end detecting unit detecting candidate connection points included in a last sound frame of the first output PCM data and an initial sound frame of the second output PCM data, respectively, as a first connection point and a second connection point; and a tune continuously-output unit connecting the first output PCM data to the second output PCM data at the first and the second connection points, and playing the connected data. | 08-19-2010 |
20100208902 | SOUND DETERMINATION DEVICE, SOUND DETERMINATION METHOD, AND SOUND DETERMINATION PROGRAM - The noise removal device includes plural microphones, a time axis adjustment unit, an FFT analysis unit, and a noise removal processing unit, and determines frequency signals of a to-be-extracted sound by performing a threshold judgment on each of the phase distances, of the mixed sounds each received through a corresponding one of the microphones, in the case where the phases are expressed by the expression ψ′(t)=mod | 08-19-2010 |
20100215182 | Light-Emission Responder - A light-emission responder can respond to input of sound, realizes versatility of response, and can be applied to various use forms. A microphone ( | 08-26-2010 |
20100239097 | Method and System for Determining a Gain Reduction Parameter Level for Loudspeaker Equalization - Methods, digital systems, and computer readable media are provided for determining a gain reduction parameter level for loudspeaker equalization by determining a noise score, an equalization effectiveness score, and an equalization non-effectiveness score for a candidate gain reduction parameter level, determining a composite quality score using the three scores, and designing a compensating filter for the loudspeaker using the candidate gain reduction parameter level if the composite quality score is better than composite quality scores of all other candidate gain reduction parameter levels. | 09-23-2010 |
20100239098 | BACKGROUND NOISE ESTIMATION - A system for estimating the background noise in a loudspeaker-room-microphone system is presented herein where the loudspeaker is supplied with a source signal and the microphone picks up the source signal distorted by the room and provides a distorted signal. The system comprises an adaptive filter receiving the source signal and the distorted signal, and providing an error signal, a post filter connected downstream of the adaptive filter and a smoothing filter arrangement connected downstream of the adaptive filter. The smoothing filter arrangement includes a spectral domain smoothing filter and that provides a spectral domain estimated-noise signal, and a time domain smoothing filter and that provides a time domain estimated-noise signal. A scaling factor calculation unit receives signals indicative of the spectral domain estimated noise signal and the time domain estimated noise signal provides a scaling factor to a scaling unit that applies the scaling factor to the spectral domain estimated-noise signal to provide an enhanced spectral domain estimated-noise signal. | 09-23-2010 |
20100246834 | WIND RECOGNITION SYSTEM AND METHOD FOR WIND RECOGNITION USING MICROPHONE - A wind recognition system includes a sampling unit to sample data inputted through a microphone, an amplitude analysis unit to analyze an amplitude pattern of the sampled data, and a wind recognition unit to recognize the inputted data as wind if the analyzed amplitude pattern corresponds to a wind pattern. The amplitude analysis unit obtains amplitude data from the sampled data, and determines that the analyzed amplitude pattern corresponds to the wind pattern if the amplitude data includes n amplitudes each having a predetermined size. Alternatively, the amplitude analysis unit determines that the analyzed amplitude pattern corresponds to the wind pattern if a standard deviation of amplitudes included in the amplitude data is less than a reference deviation. Also, the wind recognition unit may recognize the inputted data as wind if the analyzed frequency spectrum of amplitude data corresponds to a wind prototype. | 09-30-2010 |
20100246835 | CONCEPTUAL AND COMPUTATIONAL MODEL OF THE EFFECTS OF ANTHROPOGENIC NOISE ON AN ANIMAL'S PERCEPTION OF OTHER SOUNDS - The invention is a software program which estimates the effect of environmental noise on hearing and acoustic communication in birds and other animals. The calculation uses information about the acoustic characteristics of the environmental noise, the acoustic characteristics of the vocalization or bioacoustic signal, and information about species specific hearing capabilities to provide a quantitative estimate of the impact on auditory perception. The program will operate in two modes. It will make ball park estimates of noise and signal transmission through a particular type of environment for its calculations of audibility. Or, it will take as input, estimates of the noise and the signal at the bird as generated from existing commercial software and use these estimates in the calculation of audibility. | 09-30-2010 |
20100254539 | APPARATUS AND METHOD FOR EXTRACTING TARGET SOUND FROM MIXED SOURCE SOUND - A technology for eliminating or reducing interference sound from a sound signal to extract target sound is provided. Interference sound is modeled using training noise, and mixed source sound is separated using the modeled interference sound. The mixed source sound is separated into target sound and interference sound using a basis matrix of the modeled interference sound. | 10-07-2010 |
20100278347 | ACOUSTIC HOSTILE FIRE INDICATOR - A system for detecting of the location of shooters with respect to a moving platform is disclosed and claimed. The system makes use of the ballistic shock of ordnance to find a shooter by one of three methods: using a single small array (that detects ordnance shock) in conjunction with the electro-optic infrared detection of the shot; using a single small array that detects both the muzzle blast (often obscured on an aircraft in flight) and ordnance shock (that is more easily detected above the background noise); and using multiple small arrays, each of which detects ordnance shock, to triangulate the ordnance trajectory. | 11-04-2010 |
20100284544 | SOUND SYSTEM, SOUND REPRODUCING APPARATUS, SOUND REPRODUCING METHOD, MONITOR WITH SPEAKERS, MOBILE PHONE WITH SPEAKERS - An apparatus for reproducing sound from original source signals, has a control device, a first speaker, and a second speaker. The control device receives first and second original source signals, and controls magnitudes and phases of the received first and second original source signals so that a sound pressure level in a pre-determined zone is higher than a sound pressure level in a zone other than the pre-determined zone, and outputs first and second controlled source signals. The first speaker receives the first controlled source signal and reproduces sound. The second speaker receives the second controlled source signal and reproduces sound. The apparatus according provides a sound environment in which only the person using the sound system enjoys the sound. | 11-11-2010 |
20100290632 | APPARATUS AND METHOD FOR DETECTING SOUND - An apparatus for detecting sound includes a plurality of microphones, a sound inspecting unit, a direction estimating unit, a background noise removing unit, and an alerting unit. The microphones are used to collect sounds around a user. The sound inspecting unit is used to calculate the feature values of a background noise within a preset time interval, and to determine if a latest collected sound satisfies a preset condition. When the preset condition is satisfied, the direction estimating unit is used to estimate the occurrence direction of the latest collected sound, and to determine if the occurrence direction is within a preset range behind the user. When the preset range is satisfied, the background noise removing unit is used to remove the background noise in the latest collected sound so as to obtain a detected sound. The alerting unit is used to inform the user of the detected sound via an alert message. A method for detecting sound is also disclosed. | 11-18-2010 |
20100303247 | DISPLAY APPARATUS - The invention relates a method and arrangement for presenting visual information responsive to an audio signal. A solution according to the invention comprises an audio detector ( | 12-02-2010 |
20100303248 | STANDING WAVE DETECTION APPARATUS AND METHOD OF CONTROLLING THE SAME - To efficiently detect a standing wave generated in a room, a standing-wave detection apparatus for detecting a standing wave in a predetermined space, comprises: a sound-receiving unit adapted to receive a sound generated from a sound source arranged in the predetermined space; a storage unit adapted to store time series sound pressure level data acquired by the sound-receiving unit during movement along a path in the predetermined space; an adjustment unit adapted to adjust the time series sound pressure level data stored in the storage unit, based on an adjustment curve determined using a lower envelope of the time series sound pressure level data stored in the storage unit; and a detection unit adapted to detect an existence position of a standing wave in the predetermined space based on the adjusted time series sound pressure level data. | 12-02-2010 |
20100316225 | ELECTRO-ACOUSTIC CONVERSION APPARATUS - According to one embodiment, A microphone-earphone includes a speaker connected to an acoustic device configured to measure acoustic characteristics of a listener's external auditory canal, and configured to output an acoustic signal toward the listener's external auditory canal, a microphone device disposed outside the listener's external auditory canal, an acoustic tube including one end connected to the microphone device and the other end opening to the listener's external auditory canal, and a housing including an opening portion which accommodates the speaker and is so disposed as to guide sound, which is output from the speaker, to the listener's external auditory canal. An inside diameter of the acoustic tube is less than a diameter of the opening portion. | 12-16-2010 |
20100329469 | SIGNAL PROCESSING - An apparatus, method and a computer program are provided. The apparatus is configured to process an electrical output signal from a loudspeaker to detect a user input signal. | 12-30-2010 |
20100329470 | AUDIO INFORMATION PROCESSING APPARATUS AND METHOD - An audio information processing apparatus and method include dividing an audio signal, determining a time period having a power change ratio of an audio signal larger than a first threshold value as an attack candidate, searching the time period of the attack candidate and a time period immediately before the time period of the attack candidate for an attack starting point, correcting a power of an audio signal included in the time period, and determining whether a power change ratio of the audio signal included in the time period is larger than a second threshold value for attack detection which is larger than the first threshold value. | 12-30-2010 |
20110002471 | SYSTEMS AND METHODS FOR TRANSDUCER CALIBRATION AND TUNING - Audio transducers (headphones, speakers, microphones) inherently do not accurately reproduce the signal presented to them at the input. This can be compensated for by taking into account the transducer characteristics and transforming the input signal using a digital signal processor (DSP) to counteract the inaccuracies. However, for the compensation to take place, the DSP needs to know the characteristics of the transducer. For systems with built-in transducers (like laptops with internal speakers) the characteristics of the internal speakers can be stored on the hard-drive of the laptop and the DSP can read this data and make the appropriate compensations. Because a transducer (headphone, speaker, microphone) has its own characteristics that need to be compensated for separately, a profile is supplied to the DSP either by a database lookup based on an identification made by the user or transducer itself or by profile information stored on the transducer. Once the characteristics of a transducer are known, many additional DSP algorithms can be applied in order to improve the audio performance and even safety of the system. | 01-06-2011 |
20110013779 | APPARATUS FOR TESTING AUDIO QUALITY OF AN ELECTRONIC DEVICE - This is directed to a system for testing the quality of the audio output components of an electronic device. In particular, this is directed to measuring and quantifying the software and hardware components of audio output by an electronic device. The electronic device can be connected to a testing apparatus that provides instructions for playing back particular audio files, recording the audio output by an electronic device, and comparing the recorded output with a baseline. The testing apparatus can analyze audio files generated using different attributes (e.g., containers, codecs, or bit rates) to ensure that all files that could be played back play back properly. To ensure that the testing apparatus correctly associates recorded audio outputs with audio test files, the content of each played back audio test file can identify the attributes of the audio test file. For example, each attribute can be associated with a 1 kHz tone at a particular frequency, such that the testing apparatus can identify the frequencies of detected 1 kHz tones to identify the attributes of the played back audio test file. | 01-20-2011 |
20110033055 | Voice Communication Device, Signal Processing Device and Hearing Protection Device Incorporating Same - Signal processing device comprising: a signal analyser ( | 02-10-2011 |
20110038486 | SYSTEM AND METHOD FOR AUTOMATIC DISABLING AND ENABLING OF AN ACOUSTIC BEAMFORMER - A system and method that automatically disables and/or enables an acoustic beamformer is described herein. The system and method automatically generates an output audio signal by applying beamforming to a plurality of audio signals produced by an array of microphones when it is determined that such beamforming is working effectively and generates the output audio signal based on an audio signal produced by a designated microphone within the array of microphones when it is determined that the beamforming is not working effectively. Depending upon the implementation, the determination of whether the beamforming is working effectively may be based upon a measure of distortion associated with the beamformer response, an estimated level of reverberation, and/or the rate at which a computed look direction used to control the beamformer changes. | 02-17-2011 |
20110058680 | Methods and Apparatus for Continuous Noise Exposure Monitoring - A method for continuously monitoring noise exposure level of a person via measuring sound level within an ear canal of the person using a sound measurement means linked to a sound level recording device external to the ear canal, wherein the sound measurement means may be shielded from the environment by a hearing protective device, and wherein the cable does not interfere with the ability of the hearing protective device to reduce noise exposure level in the ear canal. Also provided is a system comprising a sound measurement means mounted within an ear canal of the person, an external sound level recording means and a linking cable. Further provided is a system for providing continuous noise exposure monitoring level of a person, and for providing radio communication in a noisy environment, said system comprising the above sound monitoring system linked to a radio signal transmission means, and is switchable between said sound level recording means in a recording mode and said radio signal transmission means in a communication mode. | 03-10-2011 |
20110069843 | Selective audio/sound aspects - Certain aspects relate to providing an at least one audio source to at least one user. Certain aspects relate to selectively modifying an at least one first sound source to be provided to the at least one user, wherein the at least one first sound source is combined with an at least one second sound source, and wherein the selectively modifying is performed relative to the at least one audio source based at least in part on at least some specific information of the at least one first sound source. Other aspects relate to selectively modifying the at least one first sound source to be provided to the at least one user relative to the at least one second sound source based at least in part on at least some specific information of the at least one first sound source. | 03-24-2011 |
20110075851 | AUTOMATIC LABELING AND CONTROL OF AUDIO ALGORITHMS BY AUDIO RECOGNITION - Controlling a multimedia software application using high-level metadata features and symbolic object labels derived from an audio source, wherein a first-pass of low-level signal analysis is performed, followed by a stage of statistical and perceptual processing, followed by a symbolic machine-learning or data-mining processing component is disclosed. This multi-stage analysis system delivers high-level metadata features, sound object identifiers, stream labels or other symbolic metadata to the application scripts or programs, which use the data to configure processing chains, or map it to other media. Embodiments of the invention can be incorporated into multimedia content players, musical instruments, recording studio equipment, installed and live sound equipment, broadcast equipment, metadata-generation applications, software-as-a-service applications, search engines, and mobile devices. | 03-31-2011 |
20110075852 | AUDIO QUALITY ESTIMATION METHOD, AUDIO QUALITY ESTIMATION APPARATUS, AND PROGRAM - An audio quality estimation apparatus includes an audio packet loss frequency calculation unit ( | 03-31-2011 |
20110096933 | AUDIO PROCESSING - A method of generating a desired shelving filter for audio data, the desired shelving filter having a low-corner frequency U and a high-corner frequency f | 04-28-2011 |
20110103595 | METHODS AND APPARATUS TO MONITOR MEDIA EXPOSURE IN VEHICLES - Methods and apparatus to monitor media exposure in vehicles are disclosed. An example implementation includes collecting audience measurement data with a media monitoring device fixed in a vehicle and transmitting the audience measurement data from the media monitoring device to a shuttle located within the vehicle, the shuttle being incapable of collecting audience measurement data independent of the media monitoring device. | 05-05-2011 |
20110103596 | STORAGE MEDIUM HAVING BREATH DETECTION PROGRAM STORED THEREIN AND BREATH DETECTION APPARATUS - Sound data acquisition means acquires, from a sound input device, sound data representing a sound signal. First evaluation means evaluates the sound signal represented by the sound data, by using a first criterion for detecting whether or not the sound inputted into the sound input device is a breath. Second evaluation means evaluates the sound signal represented by the sound data, by using a second criterion which is different from the first criterion. Breath detection means detects that a breath is inputted into the sound input device at least when the first evaluation means makes an affirmative evaluation, in a first period in which whether or not a breath is started to be blown into the sound input device is determined, and detects that a breath is inputted into the sound input device when at least one of the first evaluation means and the second evaluation means make an affirmative evaluation, in a second period in which whether or not a breath continues to be blown into the sound input device is determined. | 05-05-2011 |
20110103597 | Medic voice data system - A medical voice data system includes a hand-held recording device, an electronic information carrier (EIC), and a host station. The hand-held device records medical information from a user that is examining a person in an extreme environment such as battlefield or disaster area. EICs are stored within a housing interior and can be dispensed therefrom by the user. Recording electronics within the housing interior are operably connected to at least one of the EICs. A microphone is operably connected to the recording electronics to record on a EIC medical information about the injured person. The EIC is configured to be attached to and travel with the person as they are evacuated so that the recorded medical information is immediately available to medical personnel at a care center via the host station. The medical voice data system may also employ a wireless EIC. A host station is used to receive and process the recorded information and convert it to text-based medical record. | 05-05-2011 |
20110158417 | COMMUNICATION DEVICE WITH WARNING FUNCTION AND COMMUNICATION METHOD THEREOF - A communication device with an audio database comprises an audio receiving module, a locator module, an audio identification module and a notification module. The audio receiving module calculates the strength of the at least one signal, the locator module determines whether each of the strength exceeds a predefined value and determines the directionality of the at least one audio signal in accordance with the strength of the at least one audio signal. The audio identification module compares the audio signal with audio modules in accordance with characteristics parameter to issue a warning. | 06-30-2011 |
20110200199 | METHOD FOR ESTIMATING ROAD SURFACE STATE - here is provided a method for determining a road surface state which can accurately estimate the road surface state on which a vehicle is running at one of finely classified road surface states based on a sound detection signal from a ground contact surface sound detection unit for detecting a sound in the vicinity of the ground contact surface of the tire of the running vehicle. | 08-18-2011 |
20110222695 | AUTOMATIC CORRECTION OF LOUDNESS LEVEL IN AUDIO SIGNALS - Systems and method for adapting a gain of an audio signal containing at least two different tracks with different signal level ranges. An example system includes a loudness determination unit for determining a perceived loudness of the audio input signal based on a psychoacoustic model of a human hearing. The system further includes a loudness adaptation unit configured to determine a loudness adaptation indicator based on the perceived loudness and a predetermined loudness, and to introduce the loudness adaptation indicator into the audio signal to generate an adapted gain signal. A gain determination unit is configured to adapt the gain for outputting the audio signal containing the at least two tracks based on the loudness adaptation indicators in the adapted gain signal at about the predetermined loudness. | 09-15-2011 |
20110235811 | MUSIC TRACK EXTRACTION DEVICE AND MUSIC TRACK RECORDING DEVICE - Provided is a music track extraction device, including: an audio power calculation section which calculates an audio power from an audio signal; and a judgment section which performs a judgment between a music track portion and a non-music track portion based on a state of the audio power. | 09-29-2011 |
20110235812 | SOUND INFORMATION DETERMINING APPARATUS AND SOUND INFORMATION DETERMINING METHOD - According to one embodiment, a sound information determining apparatus includes: a holding module configured hold a plurality of determining techniques, each of which determines, with respect to a noise of each type that may be present in an input audio signal, whether the noise of corresponding type is present according to a noise characteristic; and a determining module configured to determine whether noise is present in the input audio signal by making use of some of the plurality of the determining techniques held with respect to the noise of each type. | 09-29-2011 |
20110249824 | AUDIO SIGNAL PROCESSING APPARATUS, AUDIO SIGNAL PROCESSING METHOD, AND PROGRAM - An audio signal processing apparatus includes a tapping detection unit to which an audio signal picked up by a microphone is input and that detects a tapping input operation on the basis of an energy increase/decrease determination process for making a determination as to whether an increase and a decrease of an energy level of low-frequency components of the audio signal occur within a first time period; and a control unit that performs a certain control process that is set for a tapping input operation in response to a tapping input operation being detected by the tapping detection unit. | 10-13-2011 |
20110249825 | Sound Field Control Apparatus and Method for Controlling Sound Field - A sound field control apparatus includes at least two main microphones; for each main microphone, a set of at least two sub microphones arranged such that the at least two sub microphones are placed in different axis directions about each of the main microphones; a filtering unit; and a filter coefficient calculating unit configured to calculate a filter coefficient for the filtering unit. A filter coefficient used to control sound pressure levels and air particle velocities of an output audio signal is calculated on the basis of a sound pressure level detected by each main microphone and the difference between the sound pressure level detected by the main microphone and that detected by each of the corresponding sub microphones. | 10-13-2011 |
20110268282 | System and Method for Monitoring Compliance of Sound Levels When Playing Content in Theater Auditoriums - The present invention relates to systems and methods for monitoring compliance with sound volumes in auditoriums. The method includes setting a baseline sound measurement for an audio receiver located in an auditorium. The baseline sound measurement is based on a baseline sample signal broadcast over a baseline period from a sound system, and received by the audio receiver. A sound level standard is defined for content. A live sound measurement is determined over a sampling period of live content broadcast from the sound system. It is then determined if the live sound measurement complies with the sound level standard for content. Notification is provided for non-compliance with the sound level standard for content to a party sourcing the live content. | 11-03-2011 |
20110268283 | REVERBERATION SUPPRESSING APPARATUS AND REVERBERATION SUPPRESSING METHOD - A reverberation suppressing apparatus, includes: a sound acquiring unit which acquires a sound signal; a reverberation data computing unit which computes reverberation data from the acquired sound signal; a reverberation characteristics estimating unit which estimates reverberation characteristics based on the computed reverberation data; a filter length estimating unit which estimates a filter length of a filter which is used to suppress a reverberation based on the estimated reverberation characteristics; and a reverberation suppressing unit which suppresses the reverberation based on the estimated filter length. | 11-03-2011 |
20110268284 | AUDIO ANALYSIS APPARATUS - In an audio analysis apparatus, a component acquirer acquires a component matrix composed of an array of component values, columns of the component matrix corresponding to the sequence of unit periods of an audio signal and rows of the component matrix corresponding to a series of unit bands of the audio signal arranged in a frequency-axis direction. A difference generator generates a plurality of shift matrices each obtained by shifting the columns of the component matrix in the time-axis direction with a different shift amount, and generates a plurality of difference matrices each composed of an array of element values in correspondence to the plurality of the shift matrices, the element value representing a difference between the corresponding component values of the shift matrix and the component matrix. A feature amount extractor generates a tonal feature amount including a plurality of series of feature values corresponding to the plurality of difference matrices, one series of feature values corresponding to the series of unit bands of the difference matrix, one feature value representing a sequence of element values arranged in the time-axis direction at the corresponding unit band of the difference matrix. | 11-03-2011 |
20110280408 | DEVICE, SYSTEM AND METHOD FOR MEASUREMENT OF MEDIA CONSUMPTION IN DIGITAL MEDIA TERMINALS - A device, system and method for enabling the measuring of audiences to media consumed through the use of digital media terminals. An example disclosed herein includes a loop-back device that allows the production/extraction of content identification information from media items rendered by a digital media terminal that can be seamlessly and homogenously implemented in a wide variety of media distribution platforms and devices, including Internet and mobile networks. | 11-17-2011 |
20110293102 | SOUND SIGNAL PROCESSING APPARATUS, MICROPHONE APPARATUS, SOUND SIGNAL PROCESSING METHOD, AND PROGRAM - A sound signal processing apparatus includes a sliding operation detecting section to which a sound signal collected by a microphone is inputted, and which determines start and end of a sliding operation by a determination process using a sliding sound signal component in the inputted sound signal, the sliding sound signal component being produced by the sliding operation on the microphone itself or its vicinity, and a control section that performs a predetermined control process that is set with respect to the sliding operation, during a period from the start to the end of the sliding operation determined by the sliding operation detecting section. | 12-01-2011 |
20120020484 | Audio Signal Quality Prediction - Method and apparatus for predicting the quality of an audio signal after transmission through a communication system ( | 01-26-2012 |
20120039478 | SOUND RECOGNITION DEVICE AND SOUND RECOGNITION METHOD - A sound recognition device includes: a frequency analysis unit which analyzes a frequency signal of a sound signal; a phase curve calculation unit which calculates a phase curve approximating temporal fluctuations of a phase of the frequency signal; an error calculation unit which calculates an error between the phase curve and the phase of the frequency signal; and a sound signal recognition unit which recognizes whether or not the sound signal is a signal of a periodic sound, based on the calculated error. The phase curve is expressed by a quadratic polynomial in which a value of the phase is a variable. | 02-16-2012 |
20120063605 | ACOUSTIC APPARATUS - Measurement signals for calculating acoustic characteristics of the acoustic space are reproduced in a plurality of periods at sound reproduction intervals. A picked-up signal is acquired by picking up a reproduced signal. The picked-up signal is divided for each period, and the acoustic characteristics of the acoustic space are calculated from an arithmetic unit of the divided periodic signals and the measurement signal. Before sound reproduction, a background noise signal in the acoustic space is measured, and a peak frequency component of a frequency characteristic of the background noise signal is detected. The number of periods and sound reproduction intervals of measurement signals to be reproduced are controlled so as to cancel out a detected peak frequency component at the time of calculating arithmetic unit. | 03-15-2012 |
20120063606 | SOUND PRESSURE PREDICTION APPARATUS, SOUND PRESSURE PREDICTION METHOD, AND INFORMATION STORAGE MEDIUM - A sound pressure level prediction apparatus includes a storage unit for storing measured sound pressure levels. The sound pressure level prediction apparatus also includes an acquisition unit configured to acquire sound pressure levels measured at a plurality of locations for a first fan and at least one sound pressure level for a second fan, and the at least one sound pressure level being measured at the same location as at least one of the plurality of locations used for measuring the sound pressure levels for the first fan. The sound pressure level prediction apparatus further includes a prediction unit configured to predict, based on the acquired sound pressure levels of the first fan and the at least one sound pressure level for the second fan, a sound pressure level for the second fan at a location where the sound pressure level for the second fan has not yet been measured. | 03-15-2012 |
20120070009 | Microphone Array And Method Of Use - A system for capturing high quality sound information from an impact includes a microphone stand and microphone array. The microphone stand is configured so that the microphone array arranged thereupon is focused on a single point so that ambient noise may be reduced. | 03-22-2012 |
20120076310 | Automatic Identification of Repeated Material In Audio Signals - A system and method are described for recognizing repeated audio material within at least one media stream without prior knowledge of the nature of the repeated material. The system and method are able to create a screening database from the media stream or streams. An unknown sample audio fragment is taken from the media stream and compared against the screening database to find if there are matching fragments within the media streams by determining if the unknown sample matches any samples in the screening database. | 03-29-2012 |
20120087507 | Method and System for Enhancing Sound - A method of enhancing audio sound. The method includes sensing an acoustic signal using a microphone in an electronic device. The acoustic signal is emitted in response to a primary sound signal and transmitted as a sound wave through a space. The method further includes receiving, using an antenna in the electronic device, a wireless signal encoded with the primary sound signal. An impulse response for the space is estimated based on the sensed acoustic signal and the primary sound signal encoded within the received wireless signal. A delay between the sensed acoustic signal and the primary sound signal encoded within the received wireless signal is calculated based on the estimated impulse response. The primary sound signal encoded within the received wireless signal is delayed using the calculated delay and reproduced to enhance the acoustic signal heard by a user of the electronic device. | 04-12-2012 |
20120093326 | AUDIO PROCESSING APPARATUS AND METHOD, AND PROGRAM - An audio processing apparatus includes an audio signal acquisition unit which acquires an audio signal of a musical piece, a feature value extraction unit which extracts a predetermined type of feature value from the audio signal acquired by the audio signal acquisition unit in time series, a change point detection unit which detects a change point in which the amount of change of the feature value extracted in time series by the feature value extraction unit is changed to be greater than a predetermined threshold value, a hook analysis unit which analyzes a hook place of the audio signal based on the feature value extracted by the feature value extraction unit in block units with the change point detected by the change point detection unit as a boundary, and a hook information output unit which outputs the hook place analyzed by the hook analysis unit as hook information. | 04-19-2012 |
20120093327 | ANCHOR MODEL ADAPTATION DEVICE, INTEGRATED CIRCUIT, AV (AUDIO VIDEO) DEVICE, ONLINE SELF-ADAPTATION METHOD, AND PROGRAM THEREFOR - The present invention provides a device that performs online self-adaption of anchor models for an acoustic space, and a method thereof, the anchor models being used for categorization of an AV stream which is performed based on an audio stream in the AV stream. The device divides an input audio stream into audio segments, each being estimated to have a single acoustic feature, and estimates a single probability model for each audio segment. Then, the device performs clustering on the estimated probability models and probability models stored therein, thereby generating a new anchor model. | 04-19-2012 |
20120099734 | METHOD FOR QUALITATIVE EVALUATION OF A DIGITAL AUDIO SIGNAL - The invention relates to a method of qualitatively evaluating a digital audio signal. It calculates a quality indicator consisting of a vector associated with each time window in real time, in continuous time, and in successive time windows. For example, the generation of a quality indicator vector calculates, for a reference audio signal and for an audio signal to be evaluated, the spectral power density of the audio signal, the coefficients of a prediction filter, using an autoregressive method, a temporal activity of the signal or the minimum value of the spectrum in successive blocks of the signal. To evaluate the deterioration of the audio signal, the method may calculate a distance between the vectors of the reference audio signal and the audio signal to be evaluated associated with each time window. | 04-26-2012 |
20120099735 | ENDOSCOPE WITH FUNCTION OF ACOUSTIC WAVE DETECTION AND VOICEPRINT COMPARISON - The present invention provides an endoscope with function of acoustic wave detection and voiceprint comparison. The endoscope includes a flexible tube, a hand-held host and a sound receiving element. The hand-held host includes an analog-to-digital converter, a storage unit and a digital signal processor. The sound receiving element is disposed at the control module. The sound receiving element is used to convert surrounding acoustic waves to acoustic analog signals, and transmits the acoustic analog signals to the analog-to-digital converter of the hand-held host via the signal wires. The analog-to-digital converter converts the acoustic analog signals to digital signals, and transmits the digital signals to the digital signal processor for comparing the digital signals with the voiceprint data stored in the storage unit. The digital signal processor makes the comparison result shown at the display of the hand-held host. | 04-26-2012 |
20120106746 | Technique for Estimating Particular Audio Component - Candidate frequencies per unit segment of an audio signal are identified. First processing section identifies an estimated train that is a time series of candidate frequencies, each selected for a different one of the segments, arranged over a plurality of the unit segments and that has a high likelihood of corresponding to a time series of fundamental frequencies of a target component. Second processing section identifies a state train of states, each indicative of one of sound-generating and non-sound-generating states of the target component in a different one of the segments, arranged over the unit segments. Frequency information which designates, as a fundamental frequency of the target component, a candidate frequency corresponding to the unit segment in the estimated train is generated for each unit segment corresponding to the sound-generating state. Frequency information indicative of no sound generation is generated for each unit segment corresponding to the non-sound-generating state. | 05-03-2012 |
20120114127 | REPRODUCTION APPARATUS, REPRODUCTION METHOD, PROVISION APPARATUS, AND REPRODUCTION SYSTEM - A reproduction apparatus includes: a reproduction unit which reproduces sound data; and a volume correction unit which correct a volume of the sound data reproduced by the reproduction unit on the basis of a relationship between a volume characteristic value of each of a plurality of pieces of sound data and a volume characteristic value of the sound data. | 05-10-2012 |
20120114128 | AUDIO BEAMFORMING - An audio beamforming apparatus comprises a receiving circuit ( | 05-10-2012 |
20120128165 | SYSTEMS, METHOD, APPARATUS, AND COMPUTER-READABLE MEDIA FOR DECOMPOSITION OF A MULTICHANNEL MUSIC SIGNAL - Decomposition of a multichannel signal using direction-of-arrival estimation, a basis function inventory, and a sparse recovery technique is disclosed. | 05-24-2012 |
20120134502 | Audio Correction Apparatus and Audio Correction Method - According to one embodiment, audio correction apparatus connected to audio player, includes output module configured to output audio signal as sound, and filter configured to correct the audio signal based on tap coefficient is provided. The apparatus includes, audio measurement module configured to pick up plurality of recording signals obtained by recording sound output from output module at detection points located at different points, audio analyzer configured to calculate plurality of frequency responses based on plurality of recording signals obtained by audio measurement module, and audio correction module configured to calculate maximum amplitude response by specifying maximum amplitude for each of frequencies, to calculate average group delay property for each of frequencies, to calculate tap coefficient based on maximum amplitude and average group delay property, and to output tap coefficient to filter of audio player. | 05-31-2012 |
20120140933 | AIRCRAFT AUDIO PANEL - An aircraft audio panel includes a plurality of audio inputs each configured for receiving audio communications from an audio source; a plurality of audio outputs each configured for outputting the audio communications to audio equipment in the aircraft; selecting circuitry for selecting the audio communications between the audio inputs and the audio outputs; a single selector for permitting selection of one of the audio inputs or audio outputs for adjustment; and a single audio controller for permitting adjustment of an audio characteristic of the selected audio input or audio output. The audio panel may also include an audio characteristic indicator for indicating an audio characteristic of the selected audio input or audio output. The selecting circuitry may also implement a routing mode in which a user may first initiate the routing mode, then select one of the audio inputs for routing, and then select any one of the audio outputs for receiving audio communications from the selected audio input. | 06-07-2012 |
20120140934 | AIRCRAFT AUDIO PANEL ROUTING - An aircraft audio panel includes a plurality of audio inputs each configured for receiving audio communications from an audio source; a plurality of audio outputs each configured for outputting the audio communications to audio equipment in the aircraft; selecting circuitry for selecting the audio communications between the audio inputs and the audio outputs; a single selector for permitting selection of one of the audio inputs or audio outputs for adjustment; and a single audio controller for permitting adjustment of an audio characteristic of the selected audio input or audio output. The audio panel may also include an audio characteristic indicator for indicating an audio characteristic of the selected audio input or audio output. The selecting circuitry may also implement a routing mode in which a user may first initiate the routing mode, then select one of the audio inputs for routing, and then select any one of the audio outputs for receiving audio communications from the selected audio input. | 06-07-2012 |
20120140935 | Audio Fingerprint Differences for End-to-End Quality of Experience Measurement - Implementations and techniques for audio fingerprint differences for end-to-end quality of experience measurement are generally disclosed. | 06-07-2012 |
20120148055 | AUDIO PROCESSING APPARATUS, AUDIO RECEIVER AND METHOD FOR PROVIDING AUDIO THEREOF - Provided are an audio processing apparatus and a method for providing audio thereof, and an audio receiver and a method of providing audio thereof. The audio processing apparatus includes: a location detecting unit which detects a location of an audio receiver; a sound adjusting unit which adjusts a sound of an audio signal according to the detected location; and an audio signal transmitting unit which transmits the audio signal with the adjusted sound to the audio receiver. | 06-14-2012 |
20120148056 | METHOD TO REDUCE ARTIFACTS IN ALGORITHMS WITH FAST-VARYING GAIN - A method and device reduce artifacts in an audio processing algorithm for applying a time and frequency dependent gain to an input audio signal. The method provides a time frequency representation of an input audio signal comprising a number of frequency bands; applies an audio processing algorithm providing an estimated algorithm output signal; determines for each frequency band a difference between a value of the estimated gain signal at a given time and at a preceding time; averages the difference over a predefined time; provides a confidence estimate based on the time averaged difference, the said confidence estimate being relatively low in case said time averaged difference is above a predetermined threshold level and relatively high in case said time averaged difference is below a predetermined threshold level; and optionally applies the confidence estimate to the noise reduced output signal thereby providing an improved algorithm output signal. | 06-14-2012 |
20120148057 | Method and System for Determining a Perceived Quality of an Audio System - The invention relates to a method for determining a quality indicator representing a perceived quality of an output signal of an audio device with respect to a reference signal. Such audio device may for example be a speech processing system. In the method the reference signal and the output signal are processed and compared. The processing includes dividing the reference signal and the output signal into mutually corresponding time frames. The processing further includes scaling the reference signal towards a fixed intensity level. Time frames of the output signal are selected based on measurements performed on the scaled reference signal. Then, a noise contrast parameter is calculated based on the selected time frames of the output signal. A noise suppression is applied on at least one of the reference signal and the output signal based on the noise contrast parameter. Finally, the reference signal and the output signal are perceptually subtracted to form a difference signal, and the quality indicator is derived from the difference signal. | 06-14-2012 |
20120155655 | MUSIC DETECTION BASED ON PAUSE ANALYSIS - In one embodiment, a pause-based music detection (MD) module detects music by analyzing pauses in a received audio signal. The energy of each frame of the signal is compared to an energy threshold to determine whether the frame corresponds to background noise only (i.e., a pause) or sound such as speech or music. A window having a number of frames is analyzed to determine whether there is a pause within the window. If no pauses are detected in the window, then the current frame is presumed to correspond to music. If a pause is detected, then the current frame is presumed to correspond to speech. In another embodiment, the pause-based MD module output is applied to Boolean “OR” logic along with a tone-based MD module output to generate a final MD decision. The tone-based MD module detects music by analyzing tones in the signal using any suitable tone-based MD algorithm. | 06-21-2012 |
20120155656 | Audio-Signal Processing Apparatus and Method, and Program - An audio-signal processing apparatus includes: a center-localization-degree detection section detecting a center-localization degree indicating a degree of concentration on a center of localization distribution of an audio signal; an expansion-section detection section detecting an expansion section expanding a dynamic range of the audio signal on the basis of the center-localization degree; and an expansion section expanding the dynamic range of the audio signal in the expansion section. | 06-21-2012 |
20120163610 | APPARATUS, SYSTEM, AND METHOD OF IMAGE PROCESSING, AND RECORDING MEDIUM STORING IMAGE PROCESSING CONTROL PROGRAM - An image processing apparatus receives sound signals that are respectively output by a plurality of microphones, and detects a sound arrival direction from which sounds of the sound signals are traveled. The image processing apparatus calculates a sound level of sounds output from the sound arrival direction, and causes an image that reflects the sound level of sounds output from the sound arrival direction to be displayed in vicinity of an image of a user who is outputting the sounds from the sound arrival direction. | 06-28-2012 |
20120170760 | Audio Processing - A method including: determining a time difference between at least a first audio channel and a second audio channel of the same acoustic space; and enabling a corrective time shift between the first audio channel and the second audio channel when the time difference exceeds a threshold. | 07-05-2012 |
20120170761 | AUDIO QUALITY ANALYZING DEVICE, AUDIO QUALITY ANALYZING METHOD, AND PROGRAM - During audio communication between terminals, an audio quality analyzing device picks up from a network a packet containing a bit stream obtained by compression encoding of audio sent by at least one of the terminals. The device has an audio quality analyzing unit that, in addition to analyzing a header of the packet picked up, performs at least one of: an analysis of a payload header and an analysis of the bit stream contained in the payload, detects deterioration in the quality of the audio communication service, and notifies a result of the detection to an upper level device. | 07-05-2012 |
20120177207 | AUDIO SIGNAL QUALITY MEASUREMENT IN MOBILE DEVICE - Technologies are generally described for a method for measuring a quality of an audio signal in a mobile device. In some examples, the mobile device includes a receiving unit configured to receive an audio signal transmitted from another device; an audio quality measuring unit configured to measure a quality of the received audio signal; and a transmission unit configured to transmit the measured quality of the audio signal to the another device. | 07-12-2012 |
20120177208 | TRIGGER GENERATING DEVICE, DISPLAY CONTROL DEVICE, TRIGGER GENERATING METHOD, DISPLAY CONTROL METHOD, TRIGGER GENERATING PROGRAM, AND DISPLAY CONTROL PROGRAM - A trigger generating device includes: a level setting section detecting a maximum level of an audio signal in each predetermined period and setting a threshold with reference to the maximum level; and a trigger generating section comparing the audio signal and the threshold and generating a trigger signal when the level of the audio signal changes from a level smaller than the threshold to a level greater than the threshold. | 07-12-2012 |
20120177209 | EARHEALTH MONITORING SYSTEM AND METHOD I - Methods of operating an audio device are provided. A method includes calculating estimated sound pressure levels (SPLs) for drive signals directed to an ear canal receiver (ECR) during a time increment Δt; calculating an estimated SPL_Dose during the time increment Δt using the estimated sound pressure levels; and calculating a total SPL_Dose at a time t of the audio device using the estimated SPL_Dose. | 07-12-2012 |
20120183149 | SOUND SIGNAL PROCESSING APPARATUS, SOUND SIGNAL PROCESSING METHOD, AND PROGRAM - An apparatus including a direction estimation unit detecting one or more direction points indicating a sound source direction of a sound signal for each of blocks divided in a predetermined time unit, and a direction tracking unit connecting the direction points to each other between the blocks and detecting a section in which a sound is active. | 07-19-2012 |
20120189129 | Apparatus for Aiding and Informing a User - An apparatus is described that allows the user to interact with an electronic system, such as a music player, and notifies when a potentially dangerous situation may be occurring in the immediate vicinity of the user. This is particularly important when the user is listening to music using a loud volume setting thereby making the user oblivious to the any dangerous conditions surrounding them, for example, a car beeping at an intersection. The apparatus monitors the surrounding environment while the user is listening to their music and interrupts the user's interaction with the music player and redirects the user's attention to the audio of the newly determined potentially dangerous situation. The user decides on the urgency of this situation, decides what needs to be done, and responds as they see fit. | 07-26-2012 |
20120195436 | Sound Source Position Estimation Apparatus, Sound Source Position Estimation Method, And Sound Source Position Estimation Program - A sound source position estimation apparatus includes a signal input unit that receives sound signals of a plurality of channels; a time difference calculating unit that calculates a time difference between the sound signals of the channels, a state predicting unit that predicts present sound source state information from previous sound source state information which is sound source state information including a position of a sound source, and a state updating unit that estimates the sound source state information so as to reduce an error between the time difference calculated by the time difference calculating unit and the time difference based on the sound source state information predicted by the state predicting unit. | 08-02-2012 |
20120201390 | DEVICE AND METHOD FOR AUDIBLE TRANSIENT NOISE DETECTION - The present invention relates to a device and a corresponding method for audible transient noise detection in an audio signal. To avoid the detection of false positives or at least reduce the number of detected false positives a device is proposed comprising a detector configured to detect a set of transient noise candidates in time or frequency domain among a plurality of samples of said audio signal, and a selector configured to select audible transient noise candidates from said set of transient noise candidates by use of one or more selection criteria, wherein the selection criteria used for said selection are selected and/or whose parameters are at least partly set based on characteristics of said audio signal. | 08-09-2012 |
20120201391 | DEVICE FOR LOCALIZING ACOUSTIC SOURCES AND/OR MEASURING THEIR INTENSITIES - Device for localizing acoustic sources and/or measuring their intensities, intended in particular to be used in confined spaces, the device including at least one acoustic antenna having a first series of microphones delimiting a first volume, and a second series of microphones delimiting a volume containing at least substantially the first series of microphones. | 08-09-2012 |
20120201392 | System For Monitoring Audible Tones In A Multiple Planar Chassis - Aspects for monitoring audible tones indicative of operational status of each planar in a multiple planar chassis are described. Included in the aspects is the monitoring of a speaker channel of each planar of a plurality of planars in a common chassis for state changes of beep tones. An operational status of a specific planar emitting the beep tones is identified based on the state changes. | 08-09-2012 |
20120219156 | METHODS AND APPARATUS TO MONITOR MEDIA EXPOSURE - Methods and apparatus to monitor media exposure are disclosed. An example implementation includes transmitting a start signal from a mailable meter to at least one mailable meter to at least one wearable meter; receiving a first audio at the mailable meter upon transmission of the start signal; receiving a second audio at the at least one wearable meter upon reception of the start signal; deriving a signature of the first received audio at the mailable meter; deriving a signature of the second received audio at the at least one wearable meter; transmitting the signature of the second received audio and an identification number from the at least one wearable meter to the mailable meter; and storing the signature of the first received audio and the identification number at the mailable meter as audience measurement data if the signature of the first received audio and the signature of the second received audio correlate. | 08-30-2012 |
20120219157 | MONITORING APPARATUS AND METHOD - According to one embodiment, a monitoring apparatus includes an acquisition unit, an analysis unit, a calculation unit, a storage, a determination unit. The acquisition unit acquires an environmental sound. The analysis unit performs frequency analysis to extract characteristic frequency components. The calculation unit calculates first values of metrics. The storage stores contour data generated by second values of the metrics. The determination unit determines whether or not there is a first measurement point in which a first value and a second value match, if there is no first measurement point or the change is not less than the threshold value, determines that the machines is abnormal. | 08-30-2012 |
20120224706 | SYSTEM AND METHOD FOR RECOGNIZING ENVIRONMENTAL SOUND - A method for recognizing an environmental sound in a client device in cooperation with a server is disclosed. The client device includes a client database having a plurality of sound models of environmental sounds and a plurality of labels, each of which identifies at least one sound model. The client device receives an input environmental sound and generates an input sound model based on the input environmental sound. At the client device, a similarity value is determined between the input sound model and each of the sound models to identify one or more sound models from the client database that are similar to the input sound model. A label is selected from labels associated with the identified sound models, and the selected label is associated with the input environmental sound based on a confidence level of the selected label. | 09-06-2012 |
20120224707 | METHOD AND APPARATUS FOR IDENTIFYING MOBILE DEVICES IN SIMILAR SOUND ENVIRONMENT - A method for identifying mobile devices in a similar sound environment is disclosed. Each of at least two mobile devices captures an input sound and extracts a sound signature from the input sound. Further, the mobile device extracts a sound feature from the input sound and determines a reliability value based on the sound feature. The reliability value may refer to a probability of a normal sound class given the sound feature. A server receives a packet including the sound signatures and reliability values from the mobile devices. A similarity value between sound signatures from a pair of the mobile devices is determined based on corresponding reliability values from the pair of mobile devices. Specifically, the sound signatures are weighted by the corresponding reliability values. The server identifies mobile devices in a similar sound environment based on the similarity values. | 09-06-2012 |
20120237040 | System and Method for Automated Audio Mix Equalization and Mix Visualization - Disclosed herein are systems, methods, and non-transitory computer-readable storage media for automatically analyzing, modifying, and mixing a plurality of audio signals. The modification of the audio signals takes place to avoid spectral collisions which occur when more than one signal simultaneously occupies one or more of the same frequency bands. The modifications mask out some signals to allow others to exist unaffected. Also disclosed herein is a method for displaying the identified spectral collisions superimposed on graphical waveform representations of the analyzed signals. | 09-20-2012 |
20120237041 | Method And An Apparatus For Deriving Information From An Audio Track And Determining Similarity Between Audio Tracks - A method of deriving information from an audio track, or a part thereof, wherein onsets or intensity/amplitude variations are detected as well as at which frequencies (timbral frequencies) or in which frequency bands these occur. Especially interesting is the frequency of such onsets. In this manner, the frequency of beats of a low frequency drum may be separated from that of onsets of a higher frequency drum or guitar of other instrument, and these frequencies provide important information about the track, such as genre, beat, etc. Naturally, parameters may be provided relating to the individual frequencies (frequency of onsets and frequency/tone of the sound of the onsets), or a fit thereto may be used to reduce the number of parameters. It is noted that the frequencies in which the onsets are determined may be tones or half tones in the relevant scale. As onsets of instruments normally are whole multiples of a basic frequency or beat, it has been found advantageous to represent the individual frequencies on a logarithmic scale so that such multiples of frequencies are equidistant and so that transposing to higher or lower beats is very easy. | 09-20-2012 |
20120237042 | SIGNAL CLUSTERING APPARATUS - In an example signal clustering apparatus, a feature of a signal is divided into segments. A first feature vector of each segment is calculated, the first feature vector having has a plurality of elements corresponding to each reference model. A value of an element attenuates when a feature of the segment shifts from a center of a distribution of the reference model corresponding to the element. A similarity between two reference models is calculated. A second feature vector of each segment is calculated, the second feature vector having a plurality of elements corresponding to each reference model. A value of an element is a weighted sum and segments of second feature vectors of which the plurality of elements are similar values are clustered to one class. | 09-20-2012 |
20120243694 | SYSTEMS AND METHODS FOR SEGMENTING AND/OR CLASSIFYING AN AUDIO SIGNAL FROM TRANSFORMED AUDIO INFORMATION - A system and method may be provided to segment and/or classify an audio signal from transformed audio information. Transformed audio information representing a sound may be obtained. The transformed audio information may specify magnitude of a coefficient related to energy amplitude as a function of frequency for the audio signal and time. Features associated with the audio signal may be obtained from the transformed audio information. Individual ones of the features may be associated with a feature score relative to a predetermined speaker model. An aggregate score may be obtained based on the feature scores according to a weighting scheme. The weighting scheme may be associated with a noise and/or SNR estimation. The aggregate score may be used for segmentation to identify portions of the audio signal containing speech of one or more different speakers. For classification, the aggregate score may be used to determine a likely speaker model to identify a source of the sound in the audio signal. | 09-27-2012 |
20120243695 | METHOD AND APPARATUS FOR ESTIMATING SPECTRUM DENSITY OF DIFFUSED NOISE - Provided are a method for estimating a spectrum density of diffused noises. Also provided is a processor for implementing the method. The processor includes at least two sound receiving units and a spectrum density estimating unit for estimating spectrum density. | 09-27-2012 |
20120257760 | Systems and Methods for Adjusting Audio Levels in a Plurality of Audio Signals - Systems and methods for adjusting audio levels in a plurality of audio signals are disclosed. One or more input signals containing one or more audio signals are depacketized. The audio signals are analyzed to determine if audio levels of the signals correspond to a desired audio level for at least some of the signals. The audio levels of signals that do not correspond are adjusted. Packets that do not require adjustment and the resulting adjusted packets are combined to form one or more output signals corresponding to the one or more input signals. | 10-11-2012 |
20120269354 | SYSTEM AND METHOD FOR STREAMING MUSIC REPAIR AND ERROR CONCEALMENT - A method is provided for analysing the self-similarity of an audio file. The method involves obtaining the audio spectrum envelope data of an audio file to be analysed; performing a clustering operation on the spectrum envelope data to produce a clustered set of data; for a first portion of the clustered data, performing a string matching operation on at least one other portion of the clustered data; and based on the results of the string matching operation, determining the at least one other portion of the clustered data most similar to said first portion of the clustered data. There is also provided a method of repairing an audio stream received over a network using similarity data to replace damaged or missing portions of data with similar “good” portions of data. | 10-25-2012 |
20120269355 | Methods and systems for direct-to-indirect acoustic radiance transfer - Methods, systems, and computer program products for simulating propagation of sound in a static scene can be operated for pre-computing a transfer operator for simulating results of sound reflection within a modeled scene, simulating distribution of sound energy from a sound source positioned within the scene, applying the transfer operator to the distribution of sound energy from the sound source to compute simulated sound at a plurality of points within the scene, and simulating collection of sound energy from the plurality of points within the scene to a listener positioned within the scene. | 10-25-2012 |
20120275610 | SYSTEMS AND METHODS FOR LOCAL AND REMOTE RECORDING, MONITORING, CONTROL AND/OR ANALYSIS OF SOUNDS GENERATED IN INFORMATION HANDLING SYSTEM ENVIRONMENTS - Systems and methods are disclosed that may be implemented to locally and remotely record, control, monitor and analyze sounds generated in an information handling system environment, e.g., such as in a server environment. Among other things, remote monitoring and observation of sound in a data center environment may be implemented to assist administrators with data center management and forensics analysis related to physical chassis events (e.g., such as chassis access and/or chassis intrusion), as well as providing live streaming, and local technician recorded sound bite capabilities. A sound policy may also be implemented involving server sound optimizations that works in conjunction with system thermal and power algorithms. | 11-01-2012 |
20120281845 | METHOD FOR DETERMINING AN IMPEDANCE OF AN ELECTROACOUSTIC TRANSDUCER AND FOR OPERATING AN AUDIO PLAYBACK DEVICE - A method for determining an impedance of an electroacoustic transducer ( | 11-08-2012 |
20120281846 | AUDIO TESTING SYSTEM AND METHOD - An audio testing system is configured for receiving an audio signal from the an audio emitting device. The system samples the audio signal and obtains sampling points from the audio signal for determining if the audio signal has been distorted. A related method is also disclosed. | 11-08-2012 |
20120281847 | AUDIO TESTING SYSTEM AND METHOD - An audio testing system is configured for receiving an audio signal from an audio emitting device. The system samples the audio signal and obtains sampling points from the audio signal for determining if the audio signal has been distorted. A related method is also disclosed. | 11-08-2012 |
20120288102 | Highly Directional Glassbreak Detector - A glassbreak detector first and second different audio transducers. One transducer is omnidirectional. The other is highly directional. Control circuitry processes signals from both transducers and determines if a glassbreakage profile is present. | 11-15-2012 |
20120288103 | METHOD FOR DETECTING AUDIO TICKS IN A NOISY ENVIRONMENT - A method for detecting, in an audio signal including a stream of audio samples (y(n), (y′(n)), ticks in a noisy environment, comprises the steps of applying the signal to a coarse tick detection processor arranged to decide whether it is likely that the signal includes a tick and, only then, enabling a fine tick detection processor to decide, by more thorough processing the audio signal, whether the audio signal represents an audio tick. The coarse processing step preferably includes buffering audio samples (y(n), (y′(n)), determining the maximum and minimum values of each sample, forming their local range, delaying the local range with one or more samples and comparing the difference between the actual local range and the delayed local range with a threshold value (T | 11-15-2012 |
20120288104 | METHOD AND DEVICE FOR AUDIO RECORDING - An earpiece ( | 11-15-2012 |
20120300950 | MANAGEMENT OF A SOUND MATERIAL TO BE STORED INTO A DATABASE - A data processing apparatus acquires a waveform data set from a waveform DB where waveform data sets are stored in association with tag data for classifying the waveform data sets, analyzes a sound waveform signal indicated by the acquired waveform data set to thereby identify a period of the sound waveform signal, having a predetermined feature, as a waveform signal of a sound material, and calculates a feature amount by analyzing the sound waveform signal of a sound material. Then, the data processing apparatus registers, into a sound material DB, identification data indicative of the sound waveform signal of the sound material, feature amount data indicative of the calculated feature amount and the tag data corresponding to the acquired waveform data set in association with one another. The registered tag data can be used for searching for a desired sound material from the sound material database. | 11-29-2012 |
20120300951 | METHOD AND APPARATUS FOR OBJECTIVE ASSESSMENT OF IN-EAR DEVICE ACOUSTICAL PERFORMANCE - A method and apparatus for objectively assessing acoustical performance of an in-ear device having a passageway extending there through use a dual microphone probe that removably engages the passageway. The acoustical performance of the in-ear device is performed with the in-ear device inserted into the ear canal of the user and a reference sound source. A clip holding the probe in an acoustic near field of the sound source permits real time calibration thereof. The method and apparatus allow on-site and in-situ measurement of a predicted personal attenuation rating of the device, a subject-fit re-insertion test, an acoustic seal test, a rating test, a stability and reliability test, as well as a protection test of the device with an assessment of a filtered predicted exposure level at the ear for a specific noise exposure level. The apparatus may be simply housed along with the sound source for in-field evaluation tests. | 11-29-2012 |
20120321093 | MANAGEMENT UNIT WITH MICROPHONE - An example energy management unit (EMU) with diagnostic capabilities is provided. The EMU with can receive and identify the operational status of a device by receiving an audio signal from the device generated by the device's self diagnostic system. The EMU can decode the diagnostic information and retransmit the decoded information as necessary for further processing. | 12-20-2012 |
20120321094 | SOUND EXPOSURE MONITORING SYSTEM AND METHOD FOR OPERATING THE SAME - A personal noise monitoring system and method for operating the same. Sound pressure data from inside the ears of a user of hearing protection device (HPD) are acquired from microphones in the HPD and reported to a master control unit. Simultaneously, the master control unit receives sound pressure data from the ambient environment in which the user is located. The data are reported to a central server for processing. The central server may use the data to determine in near real time or real time whether the user of the HPD is at risk for exposure to excess sound levels and to take remedial action while the user is still in the ambient environment. | 12-20-2012 |
20120321095 | Signature Noise Removal - A speech enhancement system improves the perceptual quality of a processed voice signal. The system improves the perceptual quality of a voice signal by removing unwanted noise components from a voice signal. The system removes undesirable signals that may result in the loss of information. The system receives and analyzes signals to determine whether an undesired random or persistent signal corresponds to one or more modeled noises. When one or more noise components are detected, the noise components are substantially removed or dampened from the signal to provide a less noisy voice signal. | 12-20-2012 |
20130010974 | SOUND PROCESSING DEVICE, SOUND PROCESSING METHOD, AND SOUND PROCESSING PROGRAM - A sound processing device includes a storage unit configured to store first operation data corresponding to a motion of a mechanical apparatus and a first sound feature value corresponding to the motion in correlation with each other, a noise estimating unit configured to estimate a third sound feature value corresponding to a noise component based on a second sound feature value corresponding to an acquired sound signal, a sound feature value processing unit configured to calculate a target sound feature value from which the noise component is removed based on the second sound feature value and the third sound feature value, and an updating unit that updates the first sound feature value stored in the storage unit based on detected second operation data and the third sound feature value estimated by the noise estimating unit. | 01-10-2013 |
20130022209 | NOISE PROCESSING APPARATUS - A noise processing apparatus measures a first potential difference signal, between a first electrode and a second electrode that is used as a reference electrode, and measures a second potential difference signal, between the second electrode and a third electrode that is arranged on the steering unit in the apparatus. The apparatus calculates the difference between the intensities of the first potential difference signal and the second potential difference signal calculated at the predetermined intervals. The apparatus corrects the first potential difference signal or the second potential difference signal by using the calculated difference such that the intensities of the first potential difference signal and the second potential difference signal are canceled out. The apparatus calculates a differential signal indicating the difference between the first potential difference signal and the second potential difference signal by using the corrected potential difference signal, and outputs the differential signal. | 01-24-2013 |
20130028428 | MOBILE ELECTRONIC DEVICE AND CONTROL METHOD - According to an aspect, a mobile electronic device includes a sound emitting unit, an input unit, and a processing unit. The sound emitting unit emits a sound based on a sound signal. The input unit receives a response with respect to the sound emitted by the sound emitting unit. The processing unit determines a compensation parameter for compensating the sound to be emitted by the sound emitting unit based on correctness of the response. | 01-31-2013 |
20130039497 | SYSTEM AND METHOD FOR USING ENDPOINTS TO PROVIDE SOUND MONITORING - A method is provided in one example embodiment that includes monitoring a sound pressure level with an endpoint (e.g., an Internet Protocol (IP) phone), which is configured for communications involving end users; analyzing the sound pressure level to detect a sound anomaly; and communicating the sound anomaly to a sound classification module. The endpoint can be configured to operate in a low-power mode during the monitoring of the sound pressure level. In certain instances, the sound classification module is hosted by the endpoint. In other implementations, the sound classification module is hosted in a cloud network. | 02-14-2013 |
20130039498 | ANNOYANCE JUDGMENT SYSTEM, APPARATUS, METHOD, AND PROGRAM - An annoyance judgment system includes: a biological signal measurement section configured to measure an electroencephalogram signal of a user; a database retaining a plurality of monosyllabic speech sounds such that, for each speech sound, the speech sound and a reference latency of an electroencephalogram negative component corresponding to the speech sound are retained in association; a presented-speech sound determination section configured to deteremine a monosyllabic speech sound to be presented by referring to the database; and an annoyance judgment section configured to judge annoyance of the output speech sound by comparing a peak latency of a negative component of the electroencephalogram signal in a range from 50 ms to 350 ms from a starting point, the a starting point being a point in time at which the determined speech sound is presented, against the reference latency corresponding to the determined speech sound that is retained in the database. | 02-14-2013 |
20130039499 | EMERGENCY NOTIFICATION DEVICE AND SYSTEM - An audio warning monitoring device, system and method including an audio detector, one or more audio screens to determine if monitored sound is an alarm, a processor or logic device to potentially analyze sound data and then instruct a transmitter to send a message with the monitoring device identification and signals representing sound detected by the audio detector to a server. The computer server analyzes the message and authenticates the audio detector, looks up user data associated with the detector, and contacts a user from previously stored user data in order to notify of the alert and then relay the audio signals in an audio file. At the user's option, the server may contact a staffed or automated monitoring center. Here a human operator may listen to the signals in the audio file and take appropriate action, such as calling the location of the alarm for verification or contacting a professional first responder(s). | 02-14-2013 |
20130044885 | System And Method For Identifying Original Music - We disclose useful components of a method and system that allow identification of music from the song or sound using only the sound of the audio being played. A system built using the method and device components disclosed processes inputs sent from a mobile phone over a telephone or data connection, though inputs might be sent through any variety of computers, communications equipment, or consumer audio devices over any of their associated audio or data networks. | 02-21-2013 |
20130044886 | Audio Signal Distortion Detection Device - An audio signal distortion detection device for simplifying the detection of harmonic distortion to aid in setting an amplifier's gain control to match an audio source unit's output voltage. The audio signal distortion detection device generally includes a housing having a plurality of status indicators thereon for indicating the status of an audio signal being fed into the housing's audio input. By utilizing a scaling circuit and processing unit, the present invention may be configured to detect four audio frequencies and compare DC levels of the frequencies to each other to determine if harmonic distortion is present. A distortion illuminator will illuminate when such distortion is detected and thus significantly reduce the effort required to setting an amplifier's gain control. | 02-21-2013 |
20130051571 | APPARATUS AND METHOD FOR PROCESSING AN AUDIO SIGNAL USING PATCH BORDER ALIGNMENT - Apparatus for processing an audio signal to generate a bandwidth extended signal having a high frequency part and a low frequency part using parametric data for the high frequency part, the parametric data relating to frequency bands of the high frequency part includes a patch border calculator for calculating a patch border such that the patch border coincides with a frequency band border of the frequency bands. The apparatus further includes a patcher for generating a patched signal using the audio signal and the patch border. | 02-28-2013 |
20130058488 | Audio Classification Method and System - Embodiments for audio classification are described. An audio classification system includes at least one device which executes a process of audio classification on an audio signal. The at least one device can operate in at least two modes requiring different resources. The audio classification system also includes a complexity controller which determines a combination and instructs the at least one device to operate according to the combination. For each of the at least one device, the combination specifies one of the modes of the device, and the resources requirement of the combination does not exceed maximum available resources. By controlling the modes, the audio classification system has improved scalability to an execution environment. | 03-07-2013 |
20130058489 | HUM NOISE DETECTION DEVICE - A hum noise detection device includes: a frequency conversion unit ( | 03-07-2013 |
20130064379 | AUDIO SEPARATION SYSTEM AND METHOD - A method includes determining a first spectrogram of the audio signal, defining a similarity matrix of the audio signal based on the first spectrogram and a transposed version of the first spectrogram, identifying two or more similar frames in the similarity matrix that are more similar to a designated frame than to one or more other frames in the similarity matrix, creating a repeating spectrogram model based on the two or more similar frames that are identified in the similarity matrix, and deriving a mask based on the repeating spectrogram model and the first spectrogram of the audio signal. The mask is representative of similarities between the repeating spectrogram model and the first spectrogram of the audio signal. The method also includes extracting a repeating structure from the audio signal by applying the mask to the audio signal. | 03-14-2013 |
20130070928 | METHODS, SYSTEMS, AND MEDIA FOR MOBILE AUDIO EVENT RECOGNITION - Methods, systems, and media for mobile audio event recognition are provided. In some embodiments, a method for recognizing audio events is provided, the method comprising: receiving an application that includes a plurality of classification models from a server, wherein each of the plurality of classification models is trained to identify one of a plurality of classes of non-speech audio events; receiving an audio signal; storing at least a portion of the audio signal; extracting, a plurality of audio features from the portion of the audio signal based on one or more criterion; comparing each of the plurality of extracted audio features with the plurality of classification models; identifying at least one class of non-speech audio events present in the portion of the audio signal based on the comparison; and providing an alert corresponding to the at least one class of identified non-speech audio events. | 03-21-2013 |
20130070929 | SOUND PRESSURE ASSESSMENT SYSTEM, AND METHOD AND PROGRAM THEREOF - A sound pressure assessment system determines sounds to be presented by referring to a database retaining data of sounds, each of which is a pure tone. The system presents the determined sound as a first sound, and in a predetermined time after presenting the first sound, presents as a second sound a sound at least having the same frequency and the same sound pressure level as those of the'first sound to the user. The system extracts an amount of change from an N1 component in response to the first sound to that in response to the second sound. The N1 components are negative components of an user's event-related potential based on points of presenting the first and second sounds as respective starting points. The system determines whether the sound pressure level of the presented sound is excessive to the user, based on the amount of change. | 03-21-2013 |
20130077797 | SIGNAL PROCESSING SYSTEM AND METHODS FOR RELIABLY DETECTING AUDIBLE ALARMS - A signal processing system and associated methods are disclosed for reliably detecting audible alert signals, such as Temporal-3 and Temporal-4 alert signals generated by commercially available smoke, fire, and carbon monoxide detectors. The system and methods are capable of detecting audible alert signals of different intensities in the presence of dynamic background environment (e.g., television programming, music, noise, and the like). The signal processing system and methods may, in some embodiments, be incorporated into a bedside or other unit that generates a supplemental alert signal capable of alerting individuals who might not otherwise respond to the audible alert signal, such as individuals who are asleep, hearing impaired, or intoxicated. | 03-28-2013 |
20130083929 | METHOD FOR ANALYZING SOUND TRANSMISSION PATHS IN A SYSTEM - A method for analyzing sound transmission paths in a system from a sound source to a receiver in which the all sound paths are first identified from the sound source to the receiver. These sound paths include both structure-borne sound paths and air-borne sound paths. The transfer function from each path to the receiver is measured in terms of particle velocity vector by using a particle velocity sensor or a set of sound pressures by using a microphone array. The load at each path is directly measured or indirectly estimated in the actual source operation. The load at each path is multiplied by the transfer function from the path to the receiver, which represents the contribution of the path to the response at the receiver. | 04-04-2013 |
20130083930 | ELECTRONIC APPARATUS, METHOD OF CORRECTING ACOUSTIC SIGNAL AND STORAGE MEDIUM - According to one embodiment, an electronic apparatus outputs sound in a first frequency band at different sound pressures a first number of times. The electronic apparatus receives a number of hearings of the output sound. The electronic apparatus determines an auditory property of a subject based on the received number of hearings of the output sound. The electronic apparatus corrects an acoustic signal based on the determined auditory property. | 04-04-2013 |
20130083931 | WIRELESS DEVICE - A wireless device capable of reliably detecting a tone squelch signal in a short time is provided. The wireless device which detects a tone squelch signal contained in received baseband signals is provided with: a frequency shifting unit (quadrature demodulation unit ( | 04-04-2013 |
20130101124 | METHOD AND DEVICE FOR DETECTING ACOUSTIC SHOCKS - A method and device are provided for detecting acoustic shocks in an audio stream. The method includes: breaking down the audio stream into audio frames; analyzing the audio frames in order to assign each audio frame a category value from among a plurality of predefined values; and determining the probability of an acoustic shock occurring in a current frame, based on a sequence of a given length of category values assigned to a set of frames, using a two-state Markov model, defined by a predetermined transition matrix and transmission matrix. | 04-25-2013 |
20130101125 | Acoustic Shock Prevention Apparatus - An apparatus including at least one processor and at least one memory including computer program code. The at least one memory and the computer program code is configured to, with the at least one processor, cause the apparatus at least to perform: determining a change of state in an apparatus within a first time period, wherein a first state operates with a first audio output having a first average sound pressure level and a second state operates with a second audio output having a higher average sound pressure level; and processing the second audio output signal such that the second audio output sound pressure level is acoustically continuous with respect to the first average sound pressure level immediately following the change of state. | 04-25-2013 |
20130121494 | Ear Coupling Status Sensor - A system and method configured to determine if a user is appropriately wearing an audio device, such as a headset, is described that enables a more accurate calculation of the audio device's acoustical characteristics. Headsets, such as headphones and earbuds, include a plurality of engagement sensors configured to determine if the audio device is engaged with the user's body. Engagement sensors may comprise capacitive sensors configured to communicate their state to an engagement sensor processing circuit, which may be located in a digital signal processor. If the engagement sensor processing circuit determines that the audio device is properly engaged with the user's body, then the circuit sends a signal that engages the calculation of various audio device acoustical quality calculations that among other things may satisfy various regulatory requirements and may also lead to an improved user experience. | 05-16-2013 |
20130121495 | Sound Mixture Recognition - A sound mixture may be received that includes a plurality of sources. A model may be received that includes a dictionary of spectral basis vectors for the plurality of sources. A weight may be estimated for each of the plurality of sources in the sound mixture based on the model. In some examples, such weight estimation may be performed using a source separation technique without actually separating the sources. | 05-16-2013 |
20130129097 | SOUND QUALITY EVALUATION APPARATUS AND METHOD THEREOF - An apparatus for evaluating sound quality and a method thereof may include generating an original sound, measuring a test sound generated from a subject of sound quality evaluation, analyzing a signal of the test sound measured according to a time domain, generating a plurality delay signals that are delayed from the signal of the time domain by one period, determining a degree of matching by matching the signal of the time domain to each delay signal, determining whether a white nose is occurred based on the degree of matching, and outputting the status of the white noise on the subject of the sound evaluation. The signal of the test sound may be analyzed according to a frequency domain, and a degree of occurrence of buzz and rattle is determined based on a fundamental frequency of the frequency domain and a plurality of Harmonics corresponding to the frequency domain. | 05-23-2013 |
20130142342 | APPARATUS AND METHOD FOR MICROPHONE POSITIONING BASED ON A SPATIAL POWER DENSITY - An apparatus for microphone positioning includes a spatial power distribution determiner and a spatial information estimator. The spatial power distribution determiner is adapted to determine a spatial power density indicating power values for a plurality of locations of an environment based on sound source information indicating one or more power values and one or more position values of one or more sound sources located in the environment. The spatial information estimator is adapted to estimate acoustic spatial information based on the spatial power density. | 06-06-2013 |
20130142343 | SOUND SOURCE SEPARATION DEVICE, SOUND SOURCE SEPARATION METHOD AND PROGRAM - With conventional source separator devices, specific frequency bands are significantly reduced in environments where dispersed static is present that does not come from a particular direction, and as a result, the dispersed static may be filtered irregularly without regard to sound source separation results, giving rise to musical noise. In an embodiment of the present invention, by computing weighting coefficients which are in a complex conjugate relation, for post-spectrum analysis output signals from microphones ( | 06-06-2013 |
20130142344 | AUTOMATIC LOCATION-SPECIFIC CONTENT SELECTION FOR PORTABLE INFORMATION RETRIEVAL DEVICES - A method for anticipating a user's desired information using a FDA device connected to a computer network is provided. This method further comprises maintaining a database of user tendencies within the computer network, receiving sensor data from the user's physical environment via the FDA device, generating query strings using both tendency data and sensor data, retrieving data from external data sources using these generated query strings, organizing the retrieved data into electronic folders, and delivering this organized data to the user via the FDA device, In particular, a data management module anticipates the type of information a user desires by combining real time data taken from a sensor unit within a FDA and data regarding the history of that particular user's tendencies stored within the data management module. | 06-06-2013 |
20130142345 | HEARING SYSTEM AND METHOD FOR OPERATING A HEARING SYSTEM - A hearing system ( | 06-06-2013 |
20130148814 | AUDIO ACQUISITION SYSTEMS AND METHODS - Audio acquisition systems and methods to determine a direction of arrival of an audio signal are disclosed. In an embodiment, an apparatus includes a continuous sampling stage configured to receive audio information and to generate one or more correlations from the received audio information, and a processing stage configured to receive the one or more correlations and to generate direction of arrival information for the audio information. In another embodiment, a method includes generating audio signals from an ambient acoustic environment, and performing beamforming on the generated audio signals. The method further includes calculating signal-to-interference ratios from the beamformed signals, forming correlations between the signal-to-interference ratios and audio sampling angles, selecting at least one correlation based upon predetermined selection criteria, and determining a direction of arrival for the audio signals. | 06-13-2013 |
20130148815 | NOISE TESTING SYSTEM AND METHOD - A noise testing system includes an electronic device, a noise meter and a testing desk. The electronic device includes a plurality of separated electronic components. The noise meter is used to test a noise generated by the electronic device. The testing desk includes a surface. A plurality of scale markings is defined in the surface, and a plurality of scale value is labeled on the surface and correspond to the plurality of scale marking. A first distance between every two of the plurality of separated electronic components and a second distance between the noise meter and each of the plurality of separated electronic components is adjusted to be in a fixed range according to the plurality of scale marking. A noise testing method based upon the above noise testing system is further disclosed. | 06-13-2013 |
20130148816 | Method for Determining a Transmission Quality when Receiving Audio Signals and Receiving Unit - There is provided a method of determining a transmission quality when receiving audio signals which are transmitted over a frequency-modulated path in analog form. For that purpose a frequency-modulated audio signal is received and IQ demodulation of the input signal is implemented. The I- and the Q-path of the demodulated baseband signal are subjected to analog/digital conversion. Alternatively the input signal can first be digitized and then subjected to IQ demodulation. A multiplicity of N samples is detected. The amount of the N samples is formed. A reference value is determined from the amount of the N samples. Each of the N samples is standardized to the reference value. A measurement in respect of the fluctuations in the standardized amounts is determined. The measurement in respect of the fluctuations indicates the quality of the transmission path. | 06-13-2013 |
20130148817 | ABNORMALITY DETECTION APPARATUS FOR PERIODIC DRIVING SYSTEM, PROCESSING APPARATUS INCLUDING PERIODIC DRIVING SYSTEM, ABNORMALITY DETECTION METHOD FOR PERIODIC DRIVING SYSTEM, AND COMPUTER PROGRAM - An abnormality detection apparatus for a periodic driving system includes a detection unit; a data obtaining unit for time series data from the detected sound; a determinism derivation unit configured to derive a plurality of values representing determinism providing an indicator of whether the time series data is deterministic or stochastic or a plurality of intermediate variations in a calculation process of the values representing determinism at a predetermined interval from the time series data; a probability distribution calculation unit. The abnormality detection apparatus further includes a determination unit configured to determine existence or non-existence of abnormality in the periodic driving system based on the probability distribution of the values representing determinism or the intermediate variations. | 06-13-2013 |
20130156204 | Visual feedback of audio input levels - The present disclosure relates to a conferencing appliance. More specifically, this disclosure relates to visual feedback of audio input levels. In one illustrative embodiment, a ring-shaped indicator can be provided on a conferencing appliance. When an audio stream is received, the audio stream can be filtered by removing echoes and background noises. The appliance can determine the power level of the audio stream. The appliance can then activate the ring-shaped indicator showing the calculated power level of the audio stream. Different colors can be used showing the power level of the audio stream. Light intensity can also be used to indicate the power level of the incoming audio. The indicator can be placed on a standard telephone. | 06-20-2013 |
20130156205 | HOWLING DETECTION DEVICE, HOWLING SUPPRESSING DEVICE AND METHOD OF DETECTING HOWLING - The present invention provides a howling detection device capable of detecting the occurrence of howling with a higher degree of accuracy. A howling detection device ( | 06-20-2013 |
20130163768 | ELECTRONIC DEVICE INCLUDING MODIFIABLE OUTPUT PARAMETER - A method and apparatus for executing a method for modifying an output parameter of an electronic device. The method and apparatus emits a first sound. The method and apparatus are further receive a second sound at the electronic device, the second sound based at least in part on the first sound. The processor of the electronic device compares at least one characteristic of the first sound to at least one corresponding characteristic of the second sound. The processor further receives output data from at least one sensor and modifies an output parameter of the electronic device in response to the comparison of the first sound and the second sound and the output data from the at least one sensor. | 06-27-2013 |
20130163769 | ACOUSTIC WARNING LEVEL OPTIMIZATION IN AMBULATORY MEDICAL SYSTEMS - An ambulatory medical device is presented. The ambulatory medical device comprises a function module to provide the intended functionality of the device, a controller module to control the device, a sound generation module with an acoustic transducer to produce an acoustic signal and a signal generator to drive the acoustic transducer with a certain frequency. The signal generation module is arranged within a housing of the device. A tuning module varies the frequency used by the signal generator to drive the acoustic transducer and determines one or more frequencies that correspond to an optimum sound level of the acoustic signal outside of the housing of the device. The optimum sound level of the acoustic signal is a maximum sound level outside of the housing of the device, and/or a maximum perceivable sound level as determined by a user. | 06-27-2013 |
20130170655 | AUDIO OUTPUT DEVICE AND AUDIO OUTPUT METHOD - A audio output device includes: a speaker position detecting unit which detects the position of a speaker; a masking sound producing section which produces a masking sound; a plurality of loudspeakers which output the masking sound; and a localization controlling section which controls a localization position of the masking sound based on the speaker position detected by the speaker position detecting unit, and which supplies a sound signal relating to the masking sound to at least one of the plurality of loudspeakers. | 07-04-2013 |
20130177160 | ELECTRONIC DEVICE WITH FADERS - An electronic device with faders. In order to make it easy for a user to ascertain channel information assigned to each track while viewing a level meter image of the track, a level of a channel of each track is displayed as a bar graph on a display of a multitrack recorder, or the like. Further, a name of a channel assigned to each track is displayed, as assignment information about the track, in a superposed manner at a lower end of a corresponding bar graph. | 07-11-2013 |
20130182856 | RECORDING AND PLAYBACK DEVICE CAPABLE OF REPEATED PLAYBACK, COMPUTER-READABLE STORAGE MEDIUM, AND RECORDING AND PLAYBACK METHOD - In a recording and playback device of the present invention, when input data exceeding a threshold value is supplied, the CPU records input data for an amount of time corresponding to a single beat in an area specified by syllable number SPLIT in an input buffer IB of the RAM, and after incrementing the syllable number SPLIT, waits until the recorded data becomes silent. The CPU repeats this series of processing until the value of the incremented syllable number SPLIT reaches “4”, and thereby stores input data recorded for an amount of time corresponding to a single beat in each input buffer IB(1) to IB(4) corresponding to syllable numbers SPLIT1 to SPLIT4. Then, the CPU copies the input data to the recording area of the RAM such that these input data are sequentially connected and formed into loop data for an amount of time corresponding to a single bar. | 07-18-2013 |
20130188794 | DEVICE FOR DETECTING SOUNDS OUTSIDE VEHICLE - Provided is a device for detecting sound outside vehicle capable of detecting sounds outside the vehicle with high accuracy in various surrounding environments. | 07-25-2013 |
20130195277 | SYSTEM AND METHOD FOR DYNAMIC RANGE COMPENSATION OF DISTORTION - A system for controlling distortion comprising a total harmonic distortion (THD) modeling system configured to apply a chirp signal to a system and to identify one or more frequency bands at which distortion is present, and to apply a ramping signal to identify for each of the one or more frequency bands an input signal level at which distortion is initiated, a signal processing system configured to receive an input signal, to determine whether frequency components are present in the input signal that are associated with the one or more frequency bands at which distortion is present, and to limit the amplitude of the input signal at the one or more frequency bands, such as by applying dynamic range compensation. | 08-01-2013 |
20130202120 | METHODS AND APPARATUS FOR ACOUSTIC EVENT DETECTION - Methods and apparatus to identify a type of acoustic event Mel Frequency Cepstral Coefficients (MFCCs). In one embodiment, received sound is processed using the MFCCs to locate a peak for comparison with a stored event to determine if the peak corresponds to the acoustic event. | 08-08-2013 |
20130202121 | Method and System - A method of warning and/or reduction of risk of ear damage of a hearer by excessive exposure to relatively high volume and/or frequency of sound, wherein a non-audio input representative of desired sound and/or ambient sound is employed to warn of said risk and/or said risk is automatically reduced. | 08-08-2013 |
20130208904 | METHODS AND SYSTEMS FOR IMPROVED ACOUSTIC ENVIRONMENT CHARACTERIZATION - In embodiments of the present invention improved capabilities are described for determining a multi-dimensional sound signature for a location within a hypothetical space, comparing the multi-dimensional sound signature to a known multi-dimensional sound signature, and modifying the hypothetical space such that the similarity between the multi-dimensional sound signature for the location within the modified hypothetical space and the known multi-dimensional sound signature is increased. | 08-15-2013 |
20130216050 | MULTIPLE MICROPHONE SWITCHING AND CONFIGURATION - A mobile communications device contains at least two microphones. One microphone is designated by a selector to provide a voice dominant signal and another microphone is designated to provide a noise or echo dominant signal, for a call or a recording. The selector communicates the designations to a switch that routes the selected microphone signals to the inputs of a processor for voice signal enhancement. The selected voice dominant signal is then enhanced by suppressing ambient noise or canceling echo therein, based on the selected noise or echo dominant signal. The designation of microphones may change at any instant during the call or recording depending on various factors, e.g. based on the quality of the microphone signals. Other embodiments are also described. | 08-22-2013 |
20130223635 | LOW POWER AUDIO DETECTION - Devices and methods of detecting a predetermined audio signal in audio signals are provided. A device includes a processor coupled to a clock signal generator, a power controller and an audio detector. The power controller controls a clock rate provided to the processor by the clock signal generator, to control the device to operate in a low power mode having a relatively low power consumption or in a normal power mode having a relatively high power consumption. The audio detector receives audio signals and detects, in the low power mode, probable presence of a predetermined audio signal in the audio signals. The power controller controls the device to switch from the low power mode to the normal power mode responsive to the detected presence of the predetermined audio signal by the audio detector. | 08-29-2013 |
20130230178 | SYSTEMS AND METHODS FOR SCANNING A USER ENVIRONMENT AND EVALUATING DATA OF INTEREST - According to various embodiments, a mobile device continuously and/or automatically scans a user environment for tags containing non-human-readable data. The mobile device may continuously and/or automatically scan the environment for tags without being specifically directed at a particular tag. The mobile device may be adapted to scan for audio tags, radio frequency tags, and/or image tags. The mobile device may be configured to scan for and identify tags within the user environment that satisfy a user preference. The mobile device may perform an action in response to identifying a tag that satisfies a user preference. The mobile device may be configured to scan for a wide variety of tags, including tags in the form of quick response codes, steganographic content, audio watermarks, audio outside of a human audible range, radio frequency identification tags, long wavelength identification tags, near field communication tags, and/or a Memory Spot device. | 09-05-2013 |
20130230179 | System and method for mapping and displaying audio source locations - The present invention relates generally to a method and system for defining a reference sound position and producing an indicia proximate thereto in relation to one or more sound characteristics. The present invention, in one or more embodiments, provides for displaying a holographic image at a reference sound location which is determined in relation to the identification of one or more target sounds being associated with one or more identified sound characteristics. In other embodiments, the present invention provides for an indicia to appear to be interactive with a reference sound location and may be used in a variety of environments including but not limited to rock theatrics, homeland security and residential security. | 09-05-2013 |
20130230180 | INTEGRATED MOTION DETECTION USING CHANGES IN ACOUSTIC ECHO PATH - A system for detecting motion comprising a first speaker, a first microphone separated from the first speaker by a distance D | 09-05-2013 |
20130243204 | SOUND QUALITY TESTING METHOD AND SYSTEM - A sound quality testing method and system test sound quality of a network-based communication device. The method includes connecting the network-based communication device to a test host through the Internet; sending a testing signal from the test host to the sound receiving unit for generating an audio packet signal; sending the audio packet signal from the sound receiving unit to the test host through the Internet to produce a first test result; sending a test packet signal from the test host to the network-based communication device through the Internet to enable the network-based communication device to generate a speaker signal; receiving and analyzing the speaker signal by the test host to produce a second test result; and evaluating sound quality of the network-based communication device by the test host based on the first test result and the second test result. | 09-19-2013 |
20130243205 | Methods and Systems for Disambiguation of an Identification of a Sample of a Media Stream - Systems and methods of synchronizing media are provided. A client device may be used to capture a sample of a media stream being rendered by a media rendering source. The client device sends the sample to a position identification module to determine a time offset indicating a position in the media stream corresponding to the sampling time of the sample, and optionally a timescale ratio indicating a speed at which the media stream is being rendered by the media rendering source based on a reference speed of the media stream. The client device calculates a real-time offset using a present time, a timestamp of the media sample, the time offset, and optionally the timescale ratio. The client device then renders a second media stream at a position corresponding to the real-time offset to be in synchrony to the media stream being rendered by the media rendering source. | 09-19-2013 |
20130243206 | EARHEALTH MONITORING SYSTEM AND METHOD IV - A system for monitoring sound pressure levels at the ear includes an ambient sound microphone (ASM) for receiving ambient sounds and an ear canal microphone (ECM) for producing audio signals as a function of ambient sound received at the ambient sound microphone and a sound signal received from an associated personal audio device. A logic circuit is operatively associated with the ASM and ECM calculates a total SPL_Dose experienced by the ear at a time t. The total SPL_Dose is calculated by determining SPL_Dose for periods Δt as measured at the ECM. The logic circuit may select an action parameter in response to the Total SPL_Dose. | 09-19-2013 |
20130243207 | ANALYSIS SYSTEM AND METHOD FOR AUDIO DATA - An analysis system and method for audio data related to a user is provided, so that the user can be classified as one of multiple classes with an assumed probability based on the analysis result. The analysis system comprises an audio transformer ( | 09-19-2013 |
20130251158 | AUDIO SIGNAL MEASUREMENT METHOD FOR SPEAKER AND ELECTRONIC APPARATUS HAVING THE SPEAKER - An audio signal measurement method for a speaker and an electronic apparatus having the speaker are provided. The electronic apparatus further has a processing circuit and a power amplifier. The processing circuit is coupled to the speaker and configured to execute a time domain to frequency domain transform according to a voltage value of an audio signal and a current value of current feedback from the speaker so as to obtain a frequency response curve. The power amplifier is coupled to the speaker and configured to drive the speaker according the voltage value of the audio signal. The processing circuit is capable of determining whether the frequency response curve is located within a predetermined area such that the processing circuit generates a signal when the frequency response curve is located out of the predetermined area. Thereby, the electronic apparatus may measure its transducer distortion and acoustic box leakage. | 09-26-2013 |
20130251159 | System for Detecting and Reducing Noise via a Microphone Array - A system for detecting noise in a signal received by a microphone array and a method for detecting noise in a signal received by a microphone array is disclosed. The system also provides for the reduction of noise in a signal received by a microphone array and a method for reducing noise in a signal received by a microphone array. The signal to noise ratio in handsfree systems may be improved, particularly in handsfree systems present in a vehicular environment. | 09-26-2013 |
20130259240 | DEVICE AND METHOD FOR DETECTING OCCURRENCE OF WHEEZE - A device for detecting occurrence of wheeze in a lung sound includes an acoustic processing unit, a filtering unit, and an identifying unit. The acoustic processing unit is for obtaining a lung sound and for generating a raw sound signal accordingly. The filtering unit is for filtering the raw sound signal to obtain a filtered signal. The filtered signal has a plurality of sections with respect to the time domain. The identifying unit is for computing an energy value of each of the sections of the filtered signal, and for determining that a wheeze occurs when the energy values of a part of the sections are larger than a predetermined value and duration of the part of the sections is longer than a predetermined observation time. | 10-03-2013 |
20130259241 | SOUND PRESSURE LEVEL LIMITING - Limiting the sound pressure level presented to the listener's ears by one or more headphones, using processing capabilities of a personal media device. Headphones, coupled to audio signals from a personal media device, include a sensor to measure the sound pressure level presented to the listener's ears, and provide that measure to the personal media device. The personal media device, optionally aided by one or more analog circuits, adjusts the audio signal so that the sound pressure level is maintained within a recommended range. | 10-03-2013 |
20130259242 | CONTROL OF A MICROPHONE - A microphone circuit has a clip detection circuit which detects when an analogue to digital converter output has reached a threshold. A variable attenuator is controlled based on the clip detection circuit output. The feedback is thus based on the ADC output level, and the processing of this signal can be implemented without requiring baseband processing of the signal—it can simply be based on a state of the ADC output. An overrule function is also provided so that the clip detection AGC control can be inhibited or controlled differently. | 10-03-2013 |
20130266147 | SYSTEM AND METHOD FOR IDENTIFICATION OF HIGHLY-VARIABLE VOCALIZATIONS - A system and method for identifying a bird vocalization is presented. An input audio signal representing the bird vocalization is captured. A fingerprint of the input audio signal is then generated. A score of a similarity of the fingerprint to at least one of a plurality of predetermined fingerprints is determined by determining a desirable alignment between the fingerprint and the at least one of a plurality of predetermined fingerprints. A report can be generated based on the score of the similarity and an identity of the at least one of the plurality of the predetermined fingerprints, the report identifying a bird species associated with the bird vocalization | 10-10-2013 |
20130272529 | APPARATUS AND METHOD WITH ENHANCEMENT OF SOUND QUALITY - An audio processing apparatus and method are provided. The audio processing apparatus includes an envelope detector to detect an envelope of an input signal with respect to a low frequency band, and a signal restorer to restore the input signal including a high frequency band by performing frequency folding of frequency sub-band according the envelope. | 10-17-2013 |
20130279703 | METHOD AND SYSTEM FOR SOUND MONITORING OVER A NETWORK - A mobile communication environment ( | 10-24-2013 |
20130279704 | Segmenting Audio Signals into Auditory Events - In one aspect, the invention divides an audio signal into auditory events, each of which tends to be perceived as separate and distinct, by calculating the spectral content of successive time blocks of the audio signal, calculating the difference in spectral content between successive time blocks of the audio signal, and identifying an auditory event boundary as the boundary between successive time blocks when the difference in the spectral content between such successive time blocks exceeds a threshold. In another aspect, the invention generates a reduced-information representation of an audio signal by dividing an audio signal into auditory events, each of which tends to be perceived as separate and distinct, and formatting and storing information relating to the auditory events. Optionally, the invention may also assign a characteristic to one or more of the auditory events. Auditory events may be determined according to the first aspect of the invention or by another method. | 10-24-2013 |
20130279705 | Displaying Sound Indications On A Wearable Computing System - Example methods and systems for displaying one or more indications that indicate (i) the direction of a source of sound and (ii) the intensity level of the sound are disclosed. A method may involve receiving audio data corresponding to sound detected by a wearable computing system. Further, the method may involve analyzing the audio data to determine both (i) a direction from the wearable computing system of a source of the sound and (ii) an intensity level of the sound. Still further, the method may involve causing the wearable computing system to display one or more indications that indicate (i) the direction of the source of the sound and (ii) the intensity level of the sound. | 10-24-2013 |
20130287214 | Scene Change Detection Around a Set of Seed Points in Media Data - Techniques for scene change detection around seed points in media data are provided. Media features of many different types may be extracted from the media data. One or more statistical patterns of media features in a plurality of time-wise intervals around a plurality of seed time points of the media data may be determined using one or more types of features extractable from the media data. At least one of the one or more types of features comprises a type of features that captures structural properties, tonality including harmony and melody, timbre, rhythm, loudness, stereo mix, or a quantity of sound sources as related to the media data. A plurality of beginning scene change points and a plurality of ending scene change points in the media data may be detected, based on the one or more statistical patterns, for the plurality of seed time points in the media data. | 10-31-2013 |
20130294608 | SOURCE SEPARATION BY INDEPENDENT COMPONENT ANALYSIS WITH MOVING CONSTRAINT - Methods and apparatus for signal processing are disclosed. Source separation can be performed to extract moving source signals from mixtures of source signals by way of independent component analysis. Source motion is modeled by direct to reverberant ratio in the separation process, and independent component analysis techniques described herein use multivariate probability density functions to preserve the alignment of frequency bins in the source separation process. | 11-07-2013 |
20130294609 | AUDIO CHANNEL FAULT DETECTION SYSTEM - An audio system includes a diagnostic capability to check for faults to a power source and faults to ground for output audio channels configured to drive loudspeakers. The fault to ground analysis involves analysis of a number of digital samples to determine if a predetermined threshold is exceeded during a predetermined period of time. The analysis may involve both a digital signal processor and a microprocessor performing a zero crossing analysis using the predetermined threshold and the predetermined window of time. | 11-07-2013 |
20130301837 | Audio User Interaction Recognition and Context Refinement - A system which tracks a social interaction between a plurality of participants, includes a fixed beamformer that is adapted to output a first spatially filtered output and configured to receive a plurality of second spatially filtered outputs from a plurality of steerable beamformers. Each steerable beamformer outputs a respective one of the second spatially filtered outputs associated with a different one of the participants. The system also includes a processor capable of determining a similarity between the first spatially filtered output and each of the second spatially filtered outputs. The processor determines the social interaction between the participants based on the similarity between the first spatially filtered output and each of the second spatially filtered outputs. | 11-14-2013 |
20130301838 | METHOD AND APPARATUS FOR SEARCHING A MUSIC DATABASE - A method for a user to buy a song from a remote music source, the method comprising the steps of:
| 11-14-2013 |
20130308783 | NOISE LEVEL ALARM SYSTEM - A noise alarm system includes a sound gathering circuit, a amplifying circuit, a wave filtering circuit, a comparing circuit, and a alarm circuit. The sound gathering circuit gathers a sound signal. The sound signal includes a noise signal and other signals. The amplifying circuit amplifies the sound signal. The wave filtering circuit filters the other signals and output the noise signal. The comparing circuit has a reference voltage and outputs the noise signal to the alarm circuit after comparing the noise signal with the reference voltage. The alarm circuit switches on when the noise signal greater than the reference voltage. | 11-21-2013 |
20130308784 | SYSTEM AND METHOD FOR WIND DETECTION AND SUPPRESSION - In one embodiment, a pickup system includes a wind detector and a wind suppressor. The wind detector has a plurality of analyzers each configured to analyze first and second input signals, and a combiner configured to combine outputs of the plurality of analyzers and issue, based on the combined outputs, a wind level indication signal indicative of wind activity. The analyzers can be selected from a group of analyzers including a spectral slope analyzer, a ratio analyzer, a coherence analyzer, a phase variance analyzer and the like. The wind suppressor has a ratio calculator configured to generate a ratio of the first and second input signals, and a mixer configured to select one of the first or second input signals and to apply to the selected input signal one of first or second panning coefficients based on the wind level indication signal and on the ratio. | 11-21-2013 |
20130315403 | SPATIAL ADAPTATION IN MULTI-MICROPHONE SOUND CAPTURE - A spatial adaptation system for multiple-microphone sound capture systems and methods thereof are described. A spatial adaptation system includes an inference and weight module configured to receive a inputs. The inputs based on two or more input signals captured by at least two microphones. The inference and weight module to determine one or more weight values base on at least one of the inputs. The spatial adaptation system also including a noise magnitude ratio update module coupled with the inference and weight module. The noise magnitude ratio update module to determine an updated noise target based on the one or more weight values from the inference and weight module. | 11-28-2013 |
20130329895 | MICROPHONE OCCLUSION DETECTOR - Digital signal processing microphone occlusion detection is described that can be used with a noise suppression system that uses two types of noise estimators, including a more aggressive one based on two audio signals (such as for non-stationary noises) and a less aggressive one based on one audio signal (such as for stationary noises). Decisions are made on how to select or combine the outputs of the noise estimators into a usable noise estimate, based on an occlusion function. The occlusion detection may alternatively be used to trigger an alert to users of multi-microphone audio processing systems, such as smart phones, headsets, laptops and tablet computers. Other embodiments are also described and claimed. | 12-12-2013 |
20130336491 | GROUPING SYSTEM - Waveform generating section | 12-19-2013 |
20140016789 | APPARATUS AND METHOD FOR MEASURING QUALITY OF AUDIO - Disclosed herein is an apparatus and method for measuring quality of audio. The apparatus includes a distorted signal generation unit, an extraction unit, a distortion level measurement unit, a distortion function generation unit, and a search and measurement unit. The distorted signal generation unit generates a plurality of distorted signals with respect to audio in compliance. The extraction unit extracts a fingerprint and AV information corresponding to the audio and fingerprints and AV information corresponding to the plurality of distorted signals. The distortion level measurement unit measures fingerprint distance differences, and arousal and valence (AV) distance differences. The distortion function generation unit generates a fingerprint distortion function and an AV distortion function. The search and measurement unit measures the quality of the audio by extracting a fingerprint and AV information from query audio and then comparing extraction results with the fingerprint distortion function or AV distortion function. | 01-16-2014 |
20140037094 | SYSTEM AND METHOD FOR ESTIMATING A REVERBERATION TIME - A system and method for estimating a reverberation time is provided. The method includes estimating at least one room response of an audio capture environment with an acoustic echo canceller and generating an estimate of the reverberation time of the audio capture environment based on the at least one room response from the acoustic echo canceller. | 02-06-2014 |
20140037095 | SYSTEM AND METHOD OF PROCESSING A SOUND SIGNAL INCLUDING TRANSFORMING THE SOUND SIGNAL INTO A FREQUENCY-CHIRP DOMAIN - A system and method may be configured to process an audio signal. The system and method may track pitch, chirp rate, and/or harmonic envelope across the audio signal, may reconstruct sound represented in the audio signal, and/or may segment or classify the audio signal. A transform may be performed on the audio signal to place the audio signal in a frequency chirp domain that enhances the sound parameter tracking, reconstruction, and/or classification. | 02-06-2014 |
20140044267 | Methods and Apparatus For Media Rendering - Systems and techniques for processing of media content information are described. Similarity information is determined for a plurality of media content segments captured by different devices that may be distributed through a space. The similarity information may define similarities between segments of media content overlapping in time. At least one transition pattern determines transitions between media content segments such as from an old content segment earlier in a timeline to a new content segment later in the timeline, with the new content segment being chosen based at least in part on similarity to the old content segment. | 02-13-2014 |
20140044268 | SYSTEM AND METHOD FOR CONTROLLED DYNAMICS ADAPTATION FOR MUSICAL CONTENT - According to a preferred aspect, there is provided a system and method for controlled dynamics adaptation of audio works. The dynamics complexity of the audio is adapted depending on the listening environment and its dynamics properties. The instant invention utilizes a function of stepwise linear and logarithmical sections, which describe individual points of a curve and which therefore with the use of a parameter can be utilized to calculate and control the target value of the loudness range. The curve points are stored and provided as metadata of the musical program, which allows the dynamics scaling functionality to be implemented dynamically and not tied to a certain time or place. | 02-13-2014 |
20140050327 | AUDIO SIGNAL PROCESSING APPARATUS, AUDIO SIGNAL PROCESSING METHOD, AND PROGRAM - An audio signal processing apparatus includes a tapping detection unit to which an audio signal picked up by a microphone is input and that detects a tapping input operation on the basis of an energy increase/decrease determination process for making a determination as to whether an increase and a decrease of an energy level of low-frequency components of the audio signal occur within a first time period; and a control unit that performs a certain control process that is set for a tapping input operation in response to a tapping input operation being detected by the tapping detection unit. | 02-20-2014 |
20140056432 | AUDIO SIGNAL SEMANTIC CONCEPT CLASSIFICATION METHOD - A method for determining a semantic concept associated with an audio signal captured using an audio sensor. A data processor is used to automatically analyze the audio signal using a plurality of semantic concept detectors to determine corresponding preliminary semantic concept detection values, each semantic concept detector being adapted to detect a particular semantic concept. The preliminary semantic concept detection values are analyzed using a joint likelihood model based on predetermined pair-wise likelihoods that particular pairs of semantic concepts co-occur to determine updated semantic concept detection values. One or more semantic concepts are determined based on the updated semantic concept detection values. The semantic concept detectors and the joint likelihood model are trained together with a joint training process using training audio signals, at least some of which are known to be associated with a plurality of semantic concepts. | 02-27-2014 |
20140056433 | DISCOVERY OF MUSIC ARTIST AND TITLE BY A SMART PHONE PROVISIONED TO ALWAYS LISTEN - A smart phone application is configured to connect to the internal microphone to continuously monitor ambient audio picked up by the microphone by keeping the microphone always on in order to detect the presence of music. When a song is detected by audio analysis an acoustic fingerprint is created and compared against a song database of acoustic fingerprints. When the artist and title of a song is obtained by the smart phone application, the application stores that information in a listing. | 02-27-2014 |
20140072125 | ACOUSTIC DIAGNOSIS AND CORRECTION SYSTEM - An acoustic monitoring system includes a portable acoustic detection device, a sound analysis device and a confidence level device. The portable acoustic detection device is capable of receiving sound at one or more locations near a sound-producing device. The sound analysis device receives the sound from the portable sound detection device, determines a diagnosis based on a comparison between the sound and pre-recorded sound data, and outputs the diagnosis to the portable acoustic detection device. The sound analysis device also determines a corrective action for inhibiting the sound, which is also output to the portable sound detection device. The confidence level device determines a confidence level of the diagnosis indicating a likelihood that the diagnosis is successfully diagnosed. | 03-13-2014 |
20140072126 | APPARATUS AND METHOD FOR DETERMINING A MEASURE FOR A PERCEIVED LEVEL OF REVERBERATION, AUDIO PROCESSOR AND METHOD FOR PROCESSING A SIGNAL - An apparatus for determining a measure for a perceived level of reverberation in a mix signal consisting of a direct signal component and a reverberation signal component, has a loudness model processor having a perceptual filter stage for filtering the dry signal component the reverberation signal component or the mix signal, wherein the perceptual filter stage is configured for modeling an auditory perception mechanism of an entity to obtain a filtered direct signal, a filtered reverberation signal or a filtered mix signal. The apparatus furthermore has a loudness estimator for estimating a first loudness measure using the filtered direct signal and for estimating a second loudness measure using the filtered reverberation signal or the filtered mix signal, where the filtered mix signal is derived from a superposition of the direct signal component and the reverberation signal component. The apparatus furthermore has a combiner for combining the first and the second loudness measures to obtain a measure for the perceived level of reverberation. | 03-13-2014 |
20140072127 | UNCOMFORTABLE LOUDNESS LEVEL ESTIMATING SYSTEM, UNCOMFORTABLE LOUDNESS LEVEL ESTIMATING DEVICE, UNCOMFORTABLE LOUDNESS LEVEL ESTIMATING METHOD, AND COMPUTER PROGRAM FOR SAME - An uncomfortable sound pressure estimation system includes: a biological signal measurement section for measuring an electroencephalogram signal of a user; a sound stimulation output section for presenting a sound stimulation group to the user, the sound stimulation group including a first sound, a second sound, and a third sound which are pure tones of the same frequency and which consecutively decrease in sound pressure within a predetermined range; an extraction section for, from the electroencephalogram signal in a predetermined zone defined based on a point of presenting at least one of the second sound and the third sound as a starting point, extracting an N1-P2-amplitude related or wavelet-coefficient related characteristic amount of event-related potential of the electroencephalogram signal; and a determination section for determining an uncomfortable sound pressure at the frequency of the sound stimulation group based on the characteristic amount extracted by the extraction section. | 03-13-2014 |
20140072128 | AUDIO PACING DEVICE - There is provided a audio pacing device including a sensing unit, such as heart rate monitoring unit, to obtain a parameter, such as heart-beat rate (pulse), of a user in physical exercise, a memory to store a plurality of audio signals having predetermined tempo indications (e.g. beats per minute values); and a processing unit configured to (1) determine whether the intensity of the parameter of the user should be increased, decreased or maintained by using the parameter of the user from the heart rate monitor and a predetermined reference value, and (2) dynamically select and render an audio signal having (or adjusted to have) an audio-tempo that enables the user to accordingly increase, decrease or maintain exercise intensity, respectively | 03-13-2014 |
20140079225 | METHOD AND APPARATUS FOR ASSOCIATING AUDIO OBJECTS WITH CONTENT AND GEO-LOCATION - An approach is provided for efficiently capturing, processing, presenting, and/or associating audio objects with content items and geo-locations. A processing platform may determine a viewpoint of a viewer of at least one content item associated with a geo-location. Further, the processing platform and/or a content provider may determine at least one audio object associated with the at least one content item, the geo-location, or a combination thereof. Furthermore, the processing platform may process the at least one audio object for rendering one or more elements of the at least one audio object based, at least in part, on the viewpoint. | 03-20-2014 |
20140086419 | Method for capturing and using audio or sound signatures to analyse vehicle accidents and driver behaviours - The use of sound pattern matching methods and techniques to analyse driver behavior and accidents and provide alerts to drivers, passengers, insurers or accident management companies. While a driver is operating a vehicle on the road, sound signatures are captured from a smartphone, in car microphone, retrofitted telematics unit or other device with audio capture capabilities. The sound signatures captured are recorded, analysed and matched against known and/or previously recorded sound patterns to help determine circumstances relating to a vehicle accident event or incident. Examples of recorded and matched sound signatures include the “rumbling” sound when driving over cats eyes or edging strips on roads, the skidding sound when braking harshly or an airbag explosion. | 03-27-2014 |
20140086420 | SYSTEM AND METHOD FOR TRACKING SOUND PITCH ACROSS AN AUDIO SIGNAL USING HARMONIC ENVELOPE - A system and method may be configured to analyze audio information derived from an audio signal. The system and method may track sound pitch across the audio signal. The tracking of pitch across the audio signal may take into account change in pitch by determining at individual time sample windows in the signal duration an estimated pitch and a representation of harmonic envelope at the estimated pitch. The estimated pitch and the representation of harmonic envelope may then be implemented to determine an estimated pitch for another time sample window in the signal duration with an enhanced accuracy and/or precision. | 03-27-2014 |
20140098964 | Method and Apparatus for Acoustic Area Monitoring by Exploiting Ultra Large Scale Arrays of Microphones - Systems and methods are provided to create an acoustic map of a space containing multiple acoustic sources. Source localization and separation takes place by sampling an ultra large microphone array containing over 1020 microphones. The space is divided into a plurality of masks, wherein each masks represents a pass region and a complementary rejection region. Each mask is associated with a subset of microphones and beamforming filters that maximize a gain for signals coming from the pass region of the mask and minimizes the gain for signals from the complementary region according to an optimization criterion. The optimization criterion may be a minimization of a performance function for the beamforming filters. The performance function is preferably a convex function. A processor provides a scan applying the plurality of masks to locate a target source. Processor based systems to perform the optimization are also provided. | 04-10-2014 |
20140105406 | AUDIO SCENE MAPPING APPARATUS - An apparatus comprising: a receiver configured to receive at least one audio signal from a recording apparatus; the receiver further configured to receive at least one orientation indicator from the recording apparatus, each orientation indicator associated with one at least audio signal; a recording direction determiner configured to determine a recording orientation of the recording apparatus dependent on the at least one audio signal; a relative distance determiner configured to determining a relative distance of the recording apparatus from a sound source dependent on the at least one audio signal; and a relative position determiner configured to determining a relative position of the recording apparatus dependent on the orientation indicator and relative distance. | 04-17-2014 |
20140112483 | DISTANCE-BASED AUTOMATIC GAIN CONTROL AND PROXIMITY-EFFECT COMPENSATION - An automatic gain control derives the gain from the distance between the sound source and the microphone. The distance-based automatic gain control normalizes signal level changes caused by a speaker not maintaining a constant distance with respect to the microphone. Also, a proximity-effect compensation that derives the adaptive filter from the distance between the sound source and the microphone. The proximity-effect compensation corrects frequency response changes due to undesired proximity-effect variations. Determination of the distance between a sound source and a microphone permits accurate compensation for both frequency response changes and distance-related signal level changes. | 04-24-2014 |
20140119547 | MANAGEMENT SYSTEM WITH ACOUSTICAL MEASUREMENT FOR MONITORING NOISE LEVELS - A system is provided and includes a plurality of acoustic devices disposed in locations arrayed throughout a defined space, each one of the plurality of acoustic devices being receptive of acoustical attributes such as sound or noise levels generated in the defined space and configured to issue signals reflective of the generated acoustical attributes and an acoustic data unit disposed in signal communication with each of the plurality of acoustic devices. The acoustic data unit is receptive of the signals issued from the plurality of acoustic devices and configured to convert the signals into digital acoustic data and to output the digital acoustic data in a serialized format compatible with a network protocol. | 05-01-2014 |
20140119548 | DEVICE COMPRISING A PLURALITY OF AUDIO SENSORS AND A METHOD OF OPERATING THE SAME - There is provided a method of operating a device, the device comprising a plurality of audio sensors and being configured such that when a first audio sensor of the plurality of audio sensors is in contact with a user of the device, a second audio sensor of the plurality of audio sensors is in contact with the air, the method comprising obtaining respective audio signals representing the speech of a user from the plurality of audio sensors; and analyzing the respective audio signals to determine which, if any of the plurality of audio sensors is in contact with the user of the device. | 05-01-2014 |
20140126728 | SYSTEM AND METHOD FOR EMITTING AND ESPECIALLY CONTROLLING AN AUDIO SIGNAL IN AN ENVIRONMENT USING AN OBJECTIVE INTELLIGIBILITY MEASURE - Public address systems or other systems for emitting audio signals, like music, speech or announcements, in different locations like supermarkets, schools, universities, auditoriums are widely known. These systems usually comprise an audio source, for example a microphone or a recorder, and a plurality of loudspeakers, which are locally distributed in the locations, for emitting the audio signal from the audio source. The invention proposes a system ( | 05-08-2014 |
20140133662 | Method and Apparatus for Communication Between a Vehicle Based Computing System and a Remote Application - A system includes a processor and a wireless transceiver in communication with the computer processor and configured to communicate with a wireless device. In this embodiment, the processor is configured to receive a wireless audio input request through the transceiver, generated by a remote process. The processor is further configured to package and send vehicle audio input to the requesting process responsive to the request. | 05-15-2014 |
20140133663 | Systems and Methods for Classification of Audio Environments - Systems and methods for classification of audio environments are disclosed. In one embodiment, a method of classifying an audio environment comprises sampling the audio environment to obtain sampled audio data in accordance with a first time interval, computing features of the sampled audio data, inferring an audio cluster identifier from the features of the sampled audio data in accordance with a second time interval, and updating an audio environment model using the features of the sampled audio data in accordance with a third time interval. | 05-15-2014 |
20140133664 | SYSTEM AND METHOD FOR MAPPING AND DISPLAYING AUDIO SOURCE LOCATIONS - The present invention relates generally to a method and system for defining a reference sound position and producing an indicia proximate thereto in relation to one or more sound characteristics. The present invention, in one or more embodiments, provides for displaying a holographic image at a reference sound location which is determined in relation to the identification of one or more target sounds being associated with one or more identified sound characteristics. In other embodiments, the present invention provides for an indicia to appear to be interactive with a reference sound location and may be used in a variety of environments including but not limited to rock theatrics, homeland security and residential security. | 05-15-2014 |
20140140517 | Sound Data Identification - Sound data identification techniques are described. In one or more implementations, common sound data and uncommon sound data are identified from a plurality of sound data from a plurality of recordings of an audio source using a collaborative technique. The identification may include recognition of spectral and temporal aspects of the plurality of the sound data from the plurality of the recordings and sharing of the recognized spectral and temporal aspects to identify the common sound data as common to the plurality of recordings and the uncommon sound data as not common to the plurality of recordings. | 05-22-2014 |
20140140518 | Method and Device for Evaluating Structure-Borne Sound During a Collision of a Vehicle - The disclosure relates to a method for evaluating structure-borne sound during a collision of a vehicle. The method includes filtering a structure-borne sound signal which represents a structure-borne sound propagating in the vehicle, having a plurality of filter rules. Each of the filter rules is configured to generate a filtered structure-borne sound signal from the structure-borne sound signal. The method further includes combining the filtered structure-borne sound signals into an evaluation signal. | 05-22-2014 |
20140140519 | SOUND PROCESSING DEVICE, SOUND PROCESSING METHOD, AND PROGRAM - There is provided a sound processing device including an input signal processing unit configured to calculate a first acoustic feature quantity indicating a likelihood being of a sinusoidal wave of a signal in each time frequency domain and a second acoustic feature quantity different from the first acoustic feature quantity based on an input signal of content to be identified, a reference signal processing unit configured to calculate the first acoustic feature quantity and the second acoustic feature quantity based on a reference signal of content prepared in advance, and a matching processing unit configured to calculate a similarity between the input signal and the reference signal based on the first and second acoustic feature quantities of the input signal and the first and second acoustic feature quantities of the reference signal. | 05-22-2014 |
20140140520 | MANAGEMENT SYSTEM WITH ACOUSTICAL MEASUREMENT FOR MONITORING NOISE LEVELS - A system is provided and includes a plurality of acoustic devices disposed in locations arrayed throughout a defined space, each one of the plurality of acoustic devices being receptive of acoustical attributes such as sound or noise levels generated in the defined space and configured to issue signals reflective of the generated acoustical attributes and an acoustic data unit disposed in signal communication with each of the plurality of acoustic devices. The acoustic data unit is receptive of the signals issued from the plurality of acoustic devices and configured to convert the signals into digital acoustic data and to output the digital acoustic data in a serialized format compatible with a network protocol. | 05-22-2014 |
20140161263 | FACILITATING RECOGNITION OF REAL-TIME CONTENT - Systems, methods, and computer-readable storage media for facilitating recognition of real-time content are provided. In embodiments, a new audio fingerprint associated with live audio being presented is received. In accordance with the received audio fingerprint, at least one previously received fingerprint associated with the live audio from a real-time index is removed. Thereafter, the real-time index is updated to include the new audio fingerprint associated with the live audio being presented. Such a real-time index having the new audio fingerprint can be used to recognize the live audio being presented and, thereafter, an indication of the recognized live audio can be provided to the user device. | 06-12-2014 |
20140161264 | System and Method for Sound Level Monitoring at the Location of a Monitored Person - A system of remotely monitoring the sound level at the location of a monitored person. The system includes a first device positioned with a monitored person, a monitoring server that is a hub for communication within the system, and a second device for a monitoring person that is remote from the first device and the monitored person. The first device is configured to detect the occurrence of sound exceeding a sound threshold. The first device then places a call to at least one of the monitoring server and the second device indicating that the sound threshold has been exceeded in the area of the monitored person. | 06-12-2014 |
20140169572 | METHODS, APPARATUS AND SYSTEMS FOR INDIVIDUALIZING AUDIO, MUSIC AND SPEECH ADAPTIVELY, INTELLIGENTLY AND INTERACTIVELY - The present invention discloses methods, apparatus and systems for individualizing music, audio and speech adaptively, intelligently and interactively according to a listener's personal hearing ability, unique hearing preference, characteristic feedback, and real-time surrounding environment. | 06-19-2014 |
20140177851 | SOUND SIGNAL PROCESSING APPARATUS, MICROPHONE APPARATUS, SOUND SIGNAL PROCESSING METHOD, AND PROGRAM - A sound signal processing apparatus includes a sliding operation detecting section to which a sound signal collected by a microphone is inputted, and which determines start and end of a sliding operation by a determination process using a sliding sound signal component in the inputted sound signal, the sliding sound signal component being produced by the sliding operation on the microphone itself or its vicinity, and a control section that performs a predetermined control process that is set with respect to the sliding operation, during a period from the start to the end of the sliding operation determined by the sliding operation detecting section. | 06-26-2014 |
20140185815 | HOLD BACK AND REAL TIME RANKING OF RESULTS IN A STREAMING MATCHING SYSTEM - A matching system receives probe audio samples for comparison to references of a data store. Comparisons are generated to determine a sufficient match for a portion or a first amount of the probe sample. Ranking scores are assigned to the resulting match references. The match references are retained, unless meeting a score threshold. Comparisons are continually generated with second amounts of the probe sample and the retained references are updated with further matching references assigned ranking scores. The retained results are merged and determined to satisfy a score threshold for release as outputted results for matching references. | 07-03-2014 |
20140192990 | Virtual Audio Map - A system and method for mapping acoustic activities is disclosed. One method comprises receiving acoustic measurements recorded for a predetermined interval at a plurality of telephonic computing devices that are located at a determined location. A map of the acoustic measurements is created based on a location of each of the plurality of telephonic computing devices at which the acoustic amplitude measurement is recorded. An amplitude and/or frequency of the acoustic measurements can be displayed on the map relative to the location of the telephonic computing device at the selected location to form an acoustic map. | 07-10-2014 |
20140198919 | NOISE CONTROL OF THERMAL COMPONENTS IN A HYBRID ELECTRIC VEHICLE - Noise control for a vehicle is implemented by identifying sources of noise that are indicative of vehicle noise producing components. The sources of noise include a thermal management device of a hybrid-electric component of the vehicle and non-hybrid-electric components of the vehicle. The noise control is further implemented by determining a decibel value of the noise produced by each of the vehicle noise producing components, selecting the decibel value of one of the vehicle noise producing components having a highest decibel value as a mask limit, and determining an operational limit for the thermal management device. The operational limit includes a lowest threshold operating value which, when implemented, maintains a threshold level operating efficiency of the hybrid-electric component. If a decibel value of the noise produced by the thermal management device exceeds the mask limit, the noise control includes reducing a level of operation of the thermal management device to coincide with the decibel value of the operational limit. | 07-17-2014 |
20140205102 | AUDIO PROCESSING DEVICE, AUDIO PROCESSING METHOD, AUDIO PROCESSING PROGRAM AND AUDIO PROCESSING INTEGRATED CIRCUIT - Provided is an audio processing device comprising: a feature data generation unit which generates, for each unit section of an audio signal, section feature data expressing features of the audio signal in the unit section; a feature variation calculation unit which calculates, for each unit section, a feature variation value quantifying temporal variation of the features in the unit section, by setting the unit section as a target section and using section feature data of unit sections close to the target section; and a section judgment unit which judges, for each unit section, whether the unit section is a feature unit section including a variation point of the features, based on comparison of a threshold value and the feature variation value. Through the above, the audio processing device can detect feature unit sections from an audio signal of an AV content or the like. | 07-24-2014 |
20140205103 | MEASURING CONTENT COHERENCE AND MEASURING SIMILARITY - Embodiments for measuring content coherence and embodiments for measuring content similarity are described. Content coherence between a first audio section and a second audio section is measured. For each audio segment in the first audio section, a predetermined number of audio segments in the second audio section are determined. Content similarity between the audio segment in the first audio section and the determined audio segments is higher than that between the audio segment and all the other audio segments in the second audio section. An average of the content similarity between the audio segment in the first audio section and the determined audio segments is calculated. The content coherence is calculated as an average, the maximum or the minimum of the averages calculated for the audio segments in the first audio section. The content similarity may be calculated based on Dirichlet distribution. | 07-24-2014 |
20140211952 | METHODS AND APPARATUS TO COLLECT MEDIA IDENTIFYING DATA - Methods and apparatus to collect media identifying data are disclosed. An example method includes collecting audio data through a sound hole. The sound hole has a chamfered opening. The sound hole has an effective length-to-width ratio which is equal to or less than about 1.25 and analyzing the audio data to obtain media identifying data. | 07-31-2014 |
20140211953 | BANDLIMITING ANTI-NOISE IN PERSONAL AUDIO DEVICES HAVING ADAPTIVE NOISE CANCELLATION (ANC) - A personal audio device, such as a wireless telephone, includes noise canceling circuit that adaptively generates an anti-noise signal from a reference microphone signal and injects the anti-noise signal into the speaker or other transducer output to cause cancellation of ambient audio sounds. An error microphone may also be provided proximate the speaker to measure the output of the transducer in order to control the adaptation of the anti-noise signal and to estimate an electro-acoustical path from the noise canceling circuit through the transducer. A processing circuit that performs the adaptive noise canceling (ANC) function also either adjusts the frequency response of the anti-noise signal with respect to the reference microphone signal, and/or by adjusting the response of the adaptive filter independent of the adaptation provided by the reference microphone signal. | 07-31-2014 |
20140219461 | METHOD AND DEVICE FOR AUDIO RECOGNITION - A method and device for performing audio recognition, including: collecting a first audio document to be recognized; initiating calculation of first characteristic information of the first audio document, including: conducting time-frequency analysis for the first audio document to generate a first preset number of phase channels; and extracting at least one peak value characteristic point from each phase channel of the first preset number of phrase channels, where the at least one peak value characteristic point of each phase channel constitutes the peak value characteristic point sequence of said each phase channel; and obtaining a recognition result for the first audio document, wherein the recognition result is identified based on the first characteristic information, and wherein the first characteristic information is calculated based on the respective peak value characteristic point sequences of the preset number of phase channels. | 08-07-2014 |
20140219462 | METHOD AND DEVICE FOR BACKGROUND MITIGATION - An earpiece includes an Ambient Sound Microphone (ASM) configured to measure a background noise signal, an Ear Canal Receiver (ECR) configured to deliver audio to an ear canal, and an optional Ear Canal Microphone (ECM) configured to convert an internal sound within an ear canal of a user to an internal sound signal, and a processor operatively coupled to the ASM, the ECR and optionally the ECM. Note, internal sounds can also include residual background noise related to ambient sounds in the environment. The processor is configured to maintain a natural audio level based on a combined measurement of the background noise signal and the internal sound signal. Other embodiments are disclosed. | 08-07-2014 |
20140241531 | SYSTEMS AND METHODS FOR AUDIO DIFFERENCE DETECTION - Systems and methods for audio difference detection are described. One embodiment includes a memory component that stores logic that, when executed by a processor, causes a vehicle amplifier to receive a test input signal for a generic test sequence to determine a standard input signal for producing a desired output response signal, store the standard input signal with standard amplifier settings associated with the standard input signal, and receive an audio signal from a head unit of the vehicle, where the head unit is part of the vehicle audio system for the vehicle in which the vehicle amplifier is utilized. In some embodiments, the logic causes the vehicle amplifier to determine whether there is a difference between the audio signal and the standard input signal and in response to determining there is a difference, and adjust vehicle amplifier settings of the vehicle amplifier, such that vehicle speakers output the desired output response signal. | 08-28-2014 |
20140241532 | SOUND SOURCE DETECTING SYSTEM AND SOUND SOURCE DETECTING METHOD - A sound source detecting system that detects a predetermined sound source on the basis of sounds collected by sound collectors includes: a noise extracting unit that extracts a noise from signals of the collected sounds; and a noise suppressing unit that suppresses a signal component of the noise extracted by the noise extracting unit from the signals of the collected sounds. The sound source detecting unit detects a location of the predetermined sound source, such as an approaching vehicle, using information about the sounds having the signals of which the noise is suppressed. | 08-28-2014 |
20140254806 | SYSTEMS AND METHODS FOR INTERACTIVE BROADCAST CONTENT - Devices and methods for scoring viewer's interactions with content broadcast on a presentation device by processing at least one audio signal received by a microphone proximate the viewer and the presentation device, to generate at least one audio signature, which is compared to at least two different reference audio signatures. | 09-11-2014 |
20140254807 | SIGNATURE MATCHING OF CORRUPTED AUDIO SIGNAL - Devices and methods that match audio signatures to programming content stored in a remote database. | 09-11-2014 |
20140254808 | MEDICAL FEEDBACK SYSTEM BASED ON SOUND ANALYSIS IN A MEDICAL ENVIRONMENT - The present invention relates to a medical feedback system ( | 09-11-2014 |
20140270194 | REMOVAL OF AUDIO NOISE - A system for removing noise from an audio signal is described. For example, noise caused by content playing in the background during a voice command or phone call may be removed from the audio signal representing the voice command or phone call. By removing noise, the signal to noise ratio of the audio signal may be improved. | 09-18-2014 |
20140270195 | METHODS AND SYSTEMS FOR REDUCING SPILLOVER BY ANALYZING SOUND PRESSURE LEVELS - Methods, apparatus, and articles of manufacture for reducing spillover in a media monitoring system are disclosed. An example method includes identifying media associated with media monitoring data. The media monitoring data is received from a first meter associated with a first media presentation device. The example method includes identifying an expected sound pressure level associated with the first meter. The example method includes comparing the expected sound pressure level to an actual sound pressure level collected from the media by the first meter to determine if spillover occurred. The example method includes crediting the media as a media exposure if spillover did not occur. | 09-18-2014 |
20140270196 | METHOD AND SYSTEM FOR MITIGATING DELAY IN RECEIVING AUDIO STREAM DURING PRODUCTION OF SOUND FROM AUDIO STREAM - A communication component modifies production of an audio waveform at determined modification segments to thereby mitigate the effects of a delay in processing and/or receiving a subsequent audio waveform. The audio waveform and/or data associated with the audio waveform are analyzed to identify the modification segments based on characteristics of the audio waveform and/or data associated therewith. The modification segments show where the production of the audio waveform may be modified without substantially affecting the clarity of the sound or audio. In one embodiment, the invention modifies the sound production at the identified modification segments to extend production time and thereby mitigate the effects of delay in receiving and/or processing a subsequent audio waveform for production. | 09-18-2014 |
20140270197 | LOW POWER AUDIO TRIGGER VIA INTERMITTENT SAMPLING - Systems and methods may provide for using an audio front end of a mobile device to sampled audio from an audio signal during a first portion of a periodic detection window, and reducing a power consumption of one or more components of the audio front end during a second portion of the periodic detection window. Additionally, a determination may be made as to whether voice activity is present in the audio signal based at least in part on the sampled audio. In one example, the length of the first portion and the length of the second portion are defined by a duty cycle of the periodic detection window. | 09-18-2014 |
20140270198 | PORTABLE ELECTRONIC DEVICE DIRECTED AUDIO EMITTER ARRANGEMENT SYSTEM AND METHOD - A computationally implemented system and method that is designed to, but is not limited to: electronically determining positioning status of one or more portions of one or more humans relative to one or more locations of demodulation of one or more acoustic ultrasonic signals into one or more acoustic audio signals said one or more acoustic ultrasonic signals originating from a portable electronic device; and electronically alerting said one or more humans from said portable electronic device regarding said positioning status of one or more portions of one or more humans relative to one or more locations of demodulation of one or more acoustic ultrasonic signals into one or more acoustic audio signals when said positioning status includes a first characterization. In addition to the foregoing, other method aspects are described in the claims, drawings, and text forming a part of the present disclosure. | 09-18-2014 |
20140270199 | NOTIFICATION CONTROL DEVICE, NOTIFICATION CONTROL METHOD AND STORAGE MEDIUM - There is provided a notification control device including a determination unit configured to determine whether a sound collection unit configured to collect voice in a microphone is blocked, and a notification controller configured to cause, when it is determined that the sound collection unit of the microphone is blocked, a determination result to be reported to a user. When a voice signal indicating the voice collected by the microphone is recorded, the notification controller causes the determination result to be reported to the user in one or more notification ways not including an auditory notification way. When the voice signal is not recorded, the notification controller causes the determination result to be reported to the user in one or more notification ways from among one or more notification ways including the auditory notification way. | 09-18-2014 |
20140286494 | Microphone detection and selection circuit and method - The present invention discloses a microphone detection circuit for detecting whether an external device includes a microphone. The microphone detection circuit comprises: an audio circuit for receiving an analog input signal which is a signal from the external device or a preset signal. The audio circuit comprises: an analog-to-digital conversion unit to generate a digital audio signal according to the analog input signal; a decision unit, coupled to the analog-to-digital conversion unit, to determine whether the digital audio signal satisfies a predetermined threshold to thereby generate an analysis result, wherein if the digital audio signal satisfies the predetermined threshold, the analysis result indicates that the external device includes a microphone; and a control unit, coupled to the decision unit, to control an operation of the audio circuit according to the analysis result. | 09-25-2014 |
20140294182 | SYSTEMS AND METHODS FOR LOCATING AN ERROR MICROPHONE TO MINIMIZE OR REDUCE OBSTRUCTION OF AN ACOUSTIC TRANSDUCER WAVE PATH - An apparatus may include an acoustic transducer, a housing, a microphone, and an acoustical conduit. The acoustic transducer may include a diaphragm having a front and a back, the diaphragm configured to mechanically vibrate in response to an audio signal, thereby producing sound from the front of the diaphragm. The housing may be configured to mechanically support the acoustic transducer such that the front faces an exterior of the housing and the back faces an interior of the housing. The microphone may be disposed in the interior of the housing and may be configured to sense combined sound produced by the acoustic transducer and ambient sound proximate to the acoustic transducer. The acoustical conduit may be coupled to and extend from the microphone and pass adjacent the acoustic transducer such that the microphone senses sound proximate to the front of the diaphragm. | 10-02-2014 |
20140294183 | PORTABLE TERMINAL, HEARING AID, AND METHOD OF INDICATING POSITIONS OF SOUND SOURCES IN THE PORTABLE TERMINAL - A portable terminal, a hearing aid, and a method of indicating the position of a sound source in the portable terminal are provided. The method includes receiving sound signals of a plurality of sound sources, determining respective distances between the plurality of sound sources and the portable terminal, and respective directions of the plurality of sound sources from the portable terminal, based on the received sound signals of the plurality of sound sources, determining positions of the plurality of sound sources on the touch screen based on the determined distances and directions of the plurality of sound sources, and displaying the determined positions of the plurality of sound sources on the touch screen. | 10-02-2014 |
20140301555 | BLIND EXTRACTION OF TARGET SIGNALS - A system and method allow for extracting target signals from the overall measurement data without knowing how and where these data are collected, the locations and characteristics of target sources as well as those of random background noise sources. In essence, it uses an innovative and advanced signal processing technique to reveal certain critical information from a mixture of data that is hard to obtain otherwise. In particular, it allows for denoising the measured data that have been contaminated by various interfering and background noise, making it possible to extract certain target information that may be otherwise difficult to observe. The only assumption made in this method is that the target signal is incoherent with respect to all interfering signals and background noise. The more information about a target signal is available, the more complete the extracted signal becomes. | 10-09-2014 |
20140307878 | METHOD AND SYSTEM FOR ANALYSING SOUND - The present invention relates to a method and system for analysing audio (eg. music) tracks. A predictive model of the neuro-physiological functioning and response to sounds by one or more of the human lower cortical, limbic and subcortical regions in the brain is described. Sounds are analysed so that appropriate sounds can be selected and played to a listener in order to stimulate and/or manipulate neuro-physiological arousal in that listener. The method and system are particularly applicable to applications harnessing a biofeedback resource. | 10-16-2014 |
20140307879 | VISION-AIDED HEARING ASSISTING DEVICE - The present invention discloses a vision-aided hearing assisting device, which includes a display device, a microphone and a processing unit. The processing unit includes a receiving module, a message generating module and a display driving module. The processing unit is electrically connected to the display device and the microphone. The receiving module receives a surrounding sound signal, which is generated by the microphone. The message generating module analyzes the surrounding sound signal according to a present-scenario mode to generate a related message related with the surrounding sound signal. The display driving module drives the display device to display the related message. | 10-16-2014 |
20140328486 | ANALYZING AND TRANSMITTING ENVIRONMENTAL SOUNDS - Embodiments herein provide analysis and transmission of environmental sounds (e.g., outdoor sounds generated from an environment surrounding an enclosure) to an indoor occupant. Specifically, a sound analyzer is configured to receive a sensor output containing the environmental sounds, and analyze, in real-time, the environmental sounds to determine attributes of each of the environmental sounds. Each attribute is then compared to a collection of known sounds, and classified based on the comparison. The environmental sounds are then output and transmitted to the indoor occupant as at least one of: an audio transmission containing one or more of the environmental sounds, and a display of information about the one or more environmental sounds. The environmental sounds can be broadcast to the indoor occupant in real-time, and/or may be recorded for later analysis and use. | 11-06-2014 |
20140328487 | SOUND SIGNAL PROCESSING APPARATUS, SOUND SIGNAL PROCESSING METHOD, AND PROGRAM - A sound signal processing apparatus includes an observed signal analysis unit that receives as an observed signal a sound signal for channels obtained by a sound signal input unit formed of microphones and estimates a sound direction and a sound segment of a target sound which is sound to be extracted and a sound source extraction unit that receives the sound direction and sound segment of the target sound estimated by the observed signal analysis unit and extracts the sound signal for the target sound. The observed signal analysis unit includes a short time Fourier transform unit that generates an observed signal in time-frequency domain by applying short time Fourier transform to the sound signal for the channels received and a direction/segment estimation unit that receives the observed signal generated by the short time Fourier transform unit and detects the sound direction and sound segment of the target sound. | 11-06-2014 |
20140341380 | AUTOMATED GAIN MATCHING FOR MULTIPLE MICROPHONES - A method includes receiving, at a processor, a first data frame at a first time from a first microphone. The method also includes receiving a second data frame at the first time from a second microphone. The method further includes calculating a power ratio of the first microphone and the second microphone based on the first data frame and the second data frame in response to determining that the first data frame and the second data frame are noise data frames. | 11-20-2014 |
20140348332 | TRIP RESET BUTTON FOR A VEHICLE INSTRUMENT CLUSTER - An instrument panel for a vehicle that includes a housing, a microphone and an actuator. The microphone is configured to detect a characteristic sound in the housing. The actuator is coupled to the housing, and the actuator is configured to emit the characteristic sound into the housing when actuated. | 11-27-2014 |
20140348333 | OFF-AXIS AUDIO SUPPRESSIONS IN AN AUTOMOBILE CABIN - The suppression of off-axis audio in an audio environment is provided. Off-axis audio may be considered audio that does not originate from a region of interest. The off-axis audio is suppressed by comparing a phase difference between signals from two microphones to a target slope of the phase difference between signals originating from the region of interest. The target slope can be adapted to allow the region of interest to move with the location of a human speaker such as a driver. | 11-27-2014 |
20140362999 | SOUND DETECTION AND VISUAL ALERT SYSTEM FOR A WORKSPACE - An alert system for generating a signal indicating at least one aspect of sound within a workspace environment, the system comprising at least a first sensor positioned one of within and proximate a workspace, the at least a first sensor sensing at least one aspect of sound generated within the workspace and generating a signal indicating the at least one aspect, a communication device located within the workspace, the communication device configured to generate a signal perceivable within the workspace and a processor receiving signals from the at least a first sensor and linked to the communication device, the processor programmed to perform the steps of identifying when the at least one aspect exceeds a threshold value and driving the communication device to indicate that the at least one aspect exceeds the threshold value. | 12-11-2014 |
20140363000 | REAL-TIME AUDIENCE ATTENTION MEASUREMENT AND DASHBOARD DISPLAY - Embodiments of the present invention disclose a method, computer program product, and system for real-time determination of attentiveness of an audience in a room to a speaker. A computer determines amounts of wireless activity of a computing device within the room of the audience over time during the presentation. Based in part on the amounts of wireless activity of the computing device, the computer determines and initiates display of measures of attentiveness of the audience over the time during the presentation, to display changes in the measures of attentiveness of the audience to the speaker during the presentation. In another embodiment, the computer determines amounts of attentiveness of the audience within the room over time during the presentation utilizing sensors located throughout the room. | 12-11-2014 |
20140369508 | AUDIO SIGNAL BANDWIDTH TO CODEC BANDWIDTH ANALYSIS AND RESPONSE - The bandwidth of a codec is compared with a determined bandwidth of the output signal produced by the codec. If the bandwidths match, then an audio profile of the apparatus is set to correspond to the established bandwidths and a corresponding icon is rendered on a display of the apparatus. If the signal bandwidth is narrower, than the codec bandwidth, then the audio profile of the apparatus is set to a narrower audio profile and a corresponding icon is rendered on the display of the apparatus. The bandwidth of the signal processed by the codec may be determined in several different ways and the narrower audio profile includes reduced bandwidth, reduced gain, or reduced dynamic range. | 12-18-2014 |
20140369509 | SOUND SOURCE DETECTION APPARATUS - In a sound source detection apparatus that detects a sound source of a detection subject on the basis of collected sounds, sounds are collected by at least one sound collector, an autocorrelation between sounds collected in time series by the sound collector is calculated, and a determination as to whether or not the sound source of the detection subject exists is made on the basis of the autocorrelation. More particularly, sounds are preferably collected respectively by two or more sound collectors such that the existence of the sound source of the detection subject is determined by determining whether or not the autocorrelations of the sounds collected by the two or more sound collectors satisfy a predetermined condition. By using the autocorrelation to detect the sound source of the detection subject in this manner, high robustness against an S/N ratio is exhibited, leading to an improved detection performance when detecting the sound source of the detection subject. | 12-18-2014 |
20140369510 | Adaptation of a classification of an audio signal in a hearing aid - A method determines the classification of an audio signal in dependence on a comparison of two difference sums of audio features over time periods of different length. Thus, an adequately exact yet quickly reacting adaptation of the classification in changing hearing situations is ensured. The method is advantageously used in a hearing aid. The audio signal is processed in different ways on the basis of the classification. | 12-18-2014 |
20140376727 | SYSTEM AND METHOD FOR PROCESSING SOUND SIGNALS IMPLEMENTING A SPECTRAL MOTION TRANSFORM - A system and method are provided for processing sound signals. The processing may include identifying individual harmonic sounds represented in sound signals, determining sound parameters of harmonic sounds, classifying harmonic sounds according to source, and/or other processing. The processing may include transforming the sound signals (or portions thereof) into a space which expresses a transform coefficient as a function of frequency and chirp rate. This may facilitate leveraging of the fact that the individual harmonics of a single harmonic sound may have a common pitch velocity (which is related to the chirp rate) across all of its harmonics in order to distinguish an the harmonic sound from other sounds (harmonic and/or non-harmonic) and/or noise. | 12-25-2014 |
20140376728 | AUDIO SOURCE PROCESSING - It is inter alia disclosed to check whether an audio signal captured from an environment of the apparatus comprises arriving sound from an audio source of interest, and to provide a direction identifier being indicative on the direction of the arriving sound from the audio source of interest via a user interface when said check yields a positive result. | 12-25-2014 |
20140376729 | Segmenting Audio Signals into Auditory Events - In one aspect, the invention divides an audio signal into auditory events, each of which tends to be perceived as separate and distinct, by calculating the spectral content of successive time blocks of the audio signal, calculating the difference in spectral content between successive time blocks of the audio signal, and identifying an auditory event boundary as the boundary between successive time blocks when the difference in the spectral content between such successive time blocks exceeds a threshold. In another aspect, the invention generates a reduced-information representation of an audio signal by dividing an audio signal into auditory events, each of which tends to be perceived as separate and distinct, and formatting and storing information relating to the auditory events. Optionally, the invention may also assign a characteristic to one or more of the auditory events. Auditory events may be determined according to the first aspect of the invention or by another method. | 12-25-2014 |
20140376730 | SYSTEMS AND METHODS FOR SEGMENTING AND/OR CLASSIFYING AN AUDIO SIGNAL FROM TRANSFORMED AUDIO INFORMATION - A system and method may be provided to segment and/or classify an audio signal from transformed audio information. Transformed audio information representing a sound may be obtained. The transformed audio information may specify magnitude of a coefficient related to energy amplitude as a function of frequency for the audio signal and time. Features associated with the audio signal may be obtained from the transformed audio information. Individual ones of the features may be associated with a feature score relative to a predetermined speaker model. An aggregate score may be obtained based on the feature scores according to a weighting scheme. The weighting scheme may be associated with a noise and/or SNR estimation. The aggregate score may be used for segmentation to identify portions of the audio signal containing speech of one or more different speakers. For classification, the aggregate score may be used to determine a likely speaker model to identify a source of the sound in the audio signal. | 12-25-2014 |
20150010156 | SPEECH INTELLIGIBILITY DETECTION - Methods and systems are provided for enhancing speech intelligibility in electronic devices. During outputting of acoustic signal via an electronic device, measurement of forces applied by user of the electronic device against the device (or enclosure thereof) may be obtained. The force measurements may be used to assess and/or estimate the listening intelligibility experienced by the user. Further, the force measurements may be used to control or adjust a listening intelligibility stage applied during generation and/or processing of the acoustic signals that are outputted via the electronic device. In some instances, an audio input, corresponding to ambient noise affecting intelligibility, may be obtained, and may be used to control or assist in controlling the listening intelligibility stage. | 01-08-2015 |
20150016615 | AUDIO AND LOCATION ARRANGEMENTS - In one arrangement, a person's position in a movie auditorium is discerned by detection of audio signals from two or more speakers, and the person is then assigned a role or task in a game based on this discerned location. In another arrangement, a person's current position in a home listening environment is similarly discerned; this position information is used to control the balance of complementary audio channels of a home audio system, so that the audio “sweet spot” is located at the person's current position. A great number of other features and arrangements are also detailed. | 01-15-2015 |
20150016616 | METHOD AND A DEVICE FOR MEASURING THE AMPLITUDE NOISE AND/OR PHASE NOISE OF A SIGNAL - A method and a device for determining an amplitude noise and/or phase noise contained within a signal performs a quadrature mixing of the signal containing the amplitude noise and/or the phase noise into the baseband or intermediate-frequency band and an amplitude demodulation downstream of the quadrature mixing in order to determine the amplitude noise contained within the signal and a phase demodulation downstream of the quadrature mixing in order to determine the phase noise contained within the signal. | 01-15-2015 |
20150016617 | MODIFIED MEL FILTER BANK STRUCTURE USING SPECTRAL CHARACTERISTICS FOR SOUND ANALYSIS - A system and method for detection of sound of interest amongst plurality of other dynamically varying sounds is disclosed. In one embodiment, a spectrum detector identifies dominant spectrum energy frequency by detecting the dominant spectrum energy band present in spectrum of sound energy. A modified mel filter bank is designed by revising spectral positioning of the first mel filter bank and the second mel filter bank according to the identified dominant frequency. A feature extractor extracts the features from first mel filter bank, second mel filter bank and the modified mel filter bank which are further classified in order to detect the sound of interest. | 01-15-2015 |
20150016618 | UNCOMFORTABLE SOUND PRESSURE EVALUATION SYSTEM, UNCOMFORTABLE SOUND PRESSURE EVALUATION APPARATUS, UNCOMFORTABLE SOUND PRESSURE ADJUSTMENT APPARATUS, UNCOMFORTABLE SOUND PRESSURE EVALUATION METHOD, AND COMPUTER PROGRAM THEREOF - An exemplary uncomfortable sound pressure evaluation system consecutively presents sound stimulation groups to a user. Each sound stimulation group includes a sound stimulation, and the sound stimulation groups differ in frequency from one another. The system includes: an extraction section configured to extract, for each sound stimulation group, information concerning event-related potential relating to the sound stimulation; an estimation section configured to estimate an uncomfortable sound pressure (UCL) of the user from the information concerning event-related potential; and a correction section configured to determine whether the estimated UCL is higher than a predefined maximum UCL or not, and if a proportion of those determination results which indicate the UCL to be higher than the maximum UCL is smaller than predetermined, correcting each UCL determined as higher than the maximum UCL to a sound pressure equal to or less than the maximum UCL. | 01-15-2015 |
20150030163 | NON-INTRUSIVE QUALITY MEASUREMENTS FOR USE IN ENHANCING AUDIO QUALITY - Methods and systems are provided for receiving by a first electronic device audio content, determining audio quality of the received audio content, which includes measuring and/or estimating quality related parameters associated with the received audio content, and communicating the quality related parameters to a second electronic device, from which the audio content was transmitted. The quality related parameters may be used to control audio related functions in the second electronic device. The audio related functions may comprise noise reduction, noise suppression, cancellation, distortion reduction, equalization, compression, enhancement and/or audio rate conversion. Determining the audio quality of the received audio content may be based on one or more noise related thresholds. The quality related parameters may be communicated to the second electronic device over a dedicated control channel setup between the devices. | 01-29-2015 |
20150036832 | AUTOMOTIVE CONSTANT SIGNAL-TO-NOISE RATIO SYSTEM FOR ENHANCED SITUATION AWARENESS - Audio systems for a vehicle and methods for increasing auditory situation awareness in a vehicle are provided. An audio system includes at least one ambient microphone disposed on the vehicle, a processor and at least one loudspeaker. The at least one ambient microphone is configured to capture ambient sound external to the vehicle and to produce an ambient sound signal. The processor is configured to receive the ambient sound signal and an audio content signal, and to mix the ambient sound signal with the audio content signal to generate a mixed output signal. The at least one loudspeaker is configured to reproduce the mixed output signal in the vehicle cabin. | 02-05-2015 |
20150043737 | SOUND DETECTING APPARATUS, SOUND DETECTING METHOD, SOUND FEATURE VALUE DETECTING APPARATUS, SOUND FEATURE VALUE DETECTING METHOD, SOUND SECTION DETECTING APPARATUS, SOUND SECTION DETECTING METHOD, AND PROGRAM - There is provided a sound detecting apparatus including: a feature value extracting unit which extracts a feature value per every predetermined time from an input time signal; a feature value maintaining unit which maintains a feature value sequence of a predetermined number of detection target sound items; and a comparison unit which respectively compares a feature value sequence extracted by the feature value extracting unit with a feature value sequence of the maintained predetermined number of detecting target sound items and obtains detection results of the predetermined number of detection target sound items every time the feature value extracting unit newly extracts a feature value, wherein the feature value extracting unit includes a time frequency transform unit and a likelihood distribution detecting unit, smooths the obtained likelihood distribution in frequency and time directions, and extracts a feature value per the predetermined time. | 02-12-2015 |
20150049873 | Sound Activated Music Accessory Device - Improvements in a sound activated music accessory device are disclosed where the accessory device further enhances the listening experience by providing an interaction device. The device can be an item that is seen in the movie or music video and can be included with the CD/DVD or can be sold as a separate item. The activation and or deactivation are synchronized with the embedded sound that is placed into the soundtrack. The sound, tone, frequency or complex blended sound or sounds are subtle or non-obvious to a person listening to the music but are detected by the accessory device to begin a sequence or stop a sequence to correspond the a particular part of the soundtrack. The activation can mimic what is occurring in a movie, video or soundtrack. The accessory device to be a bracelet, necklace, hat, headband, apparel, plush or rigid toy. | 02-19-2015 |
20150049874 | SIGNAL PROCESSING APPARATUS AND METHOD, PROGRAM, AND DATA RECORDING MEDIUM - The present invention relates to a signal processing apparatus and method, a program, and a data recording medium configured such that the playback level of an audio signal can be easily and effectively enhanced without requiring prior analysis. An analyzer | 02-19-2015 |
20150055784 | Headset Hearing Protection with Integrated Transceiver and Siren Alert Device - Systems and methods of alert and notification transmission are contemplated in which a transceiver provides an alert/notification to a user(s) wearing a headset that provides hearing protection device with an integrated transceiver (e.g., radio) and on-board siren-voice alert function board. Typically, this device would be used in a loud noise area (>+70 dB) that would otherwise prevent the user from hearing an alert and notification, such as a siren tone and/or Public Address announcement. While the alert and notification is silent, the device is contemplated to provide sufficient hearing protection (>+15 dB)from the ambient surroundings. It is also contemplated that it could play local music through an audio input port/other receiving method. When an alert and notification command is communicated to a headset device's address (or globally) through the transceiver, the device(s) would then proceed to play, within the headset, the desired alert and notification message. This would be successful, as the ambient sound is suppressed around the wearer and the message clearly listened too, live and/or pre-recorded. The alert could also be in the form of a visual indication (e.g. LEDs, etc.), vibration, etc. generated from this same function board. The transceiver could be an unlicensed frequency (e.g., Wi-Fi, FRS, etc.) or a licensed frequency (VHF, UHF, Digital 800 MHz, etc.), and while preferred to be bi-directional communications, it could also function in an alert only mode. Further, by adding a GPS locator, a facility and/or site could give proximity warnings based on user skill level in negotiation the facility, perhaps based on training level and experience. Also, digital messages are contemplated where text messages could be converted to speech. | 02-26-2015 |
20150063575 | Acoustic Sound Signature Detection Based on Sparse Features - A low power sound recognition sensor is configured to receive an analog signal that may contain a signature sound. Sparse sound parameter information is extracted from the analog signal. The extracted sparse sound parameter information is processed using a sound signature database stored in the sound recognition sensor to identify sounds or speech contained in the analog signal, wherein the sound signature database comprises a plurality of sound signatures each representing an entire word or multiword phrase. | 03-05-2015 |
20150063576 | DEVICE, SYSTEM AND METHOD FOR MEASUREMENT OF MEDIA CONSUMPTION IN DIGITAL MEDIA TERMINALS - Example methods disclosed herein to monitor media presented by a media device include adjusting, with a circuit, an inbound audio signal input to the media device based on (i) a level of an outbound audio signal generated by the media device and (ii) a level of the inbound audio signal to produce an adjusted inbound audio signal. Such disclosed example methods also include combining, with the circuit, the adjusted inbound audio signal with a sampled version of the outbound audio signal to determine a return signal. Such disclosed example methods further include processing the return signal to determine first identification information to identify first presented media having an audio portion corresponding to the outbound audio signal generated by the media device. | 03-05-2015 |
20150071449 | Determination of Ambient Sound Processed Audio Information - A method comprising receiving an indication of an input indicative of the user not facing the apparatus, determining an ambient sound non-limitation directive associated with the audio uplink based, at least in part, on the input, receiving other audio information, determining ambient sound non-limited audio information based, at least in part, on the other audio information, and causing transmission of the ambient sound non-limited audio information by way of the audio uplink is disclosed. | 03-12-2015 |
20150078556 | Method, Apparatus and Computer Program for Generating an Spatial Audio Output Based on an Spatial Audio Input - A method, apparatus and computer program for: receiving a spatial audio input; determining a direction of interest from the spatial audio input; and generating a spatial audio output dependent on the spatial audio input and the direction of interest. | 03-19-2015 |
20150098574 | CONNECTOR MATING ASSURANCE SYSTEM AND METHOD - A connector mating assurance system includes a microphone configured to be located in a vicinity of a mating zone for electrical connectors. The microphone is configured to detect an audible sound when the electrical connectors are mated. An output unit is connected to the microphone and receives audio signals from the microphone. The output unit processes the audio signals for mating assurance. The output unit may provide feedback to an assembler based on the audio signals. The output unit may determine if the electrical connectors are properly mated based on the audio signals. The microphone may be held by the assembler proximate to the assembler's hand when assembling the electrical connectors. | 04-09-2015 |
20150098575 | METHOD AND SYSTEM FOR A GAME HEADSET WITH AUDIO ALERTS BASED ON AUDIO TRACK ANALYSIS - A game headset receives a plurality of audio channels during play of a particular game, monitors one or more of the plurality of audio channels and detects an occurrence of one or more particular sounds in the plurality of audio channels during the monitoring of the one or more of the plurality of audio channels. In response to the detecting, the game headset triggers playback of one or more of a plurality of voice commands that corresponds to the one or more particular sounds. The voice commands may be predefined and associated with the one or more particular sounds in a data structure. The voice commands may instruct the listener of the game headset to perform an action in the particular game. The characteristics of the one or more sounds may include direction, intensity, and/or frequency of the particular one or more sounds. | 04-09-2015 |
20150104023 | Generating A Reference Audio Fingerprint For An Audio Signal Associated With An Event - An audio identification system generates a reference audio fingerprint associated with an event. The reference audio fingerprint is generated from samples of an audio signal associated with the event captured by multiple devices. To generate the reference audio fingerprint, fingerprints are generated from each sample, and the generated fingerprints are temporally aligned. Fingerprints associated a temporally overlapping portion of the audio signal are averaged, and the average value is associated with the temporally overlapping portion of the audio signal and included in the reference audio fingerprint. The reference audio fingerprint is stored along with identifying information, such as an event name, an event time, an event date, or other information describing the event associated with the audio signal from which the samples were captured. | 04-16-2015 |
20150104024 | SYSTEM AND METHOD FOR MONITORING NOISE LEVEL - Disclosed is an apparatus for monitoring and/or recording noise levels at a location under surveillance over a time period. The apparatus includes a unit for capturing visual data of the location under surveillance, a unit for capturing audio data at the location under surveillance, a noise level process for deriving noise level data at the location under surveillance, and a unit to couple the visual and audio data with the noise level data. | 04-16-2015 |
20150104025 | METHOD AND DEVICE FOR ACUTE SOUND DETECTION AND REPRODUCTION - Earpieces and methods for acute sound detection and reproduction are provided. A method can include measuring an external ambient sound level (xASL), monitoring a change in the xASL for detecting an acute sound, estimating a proximity of the acute sound, and upon detecting the acute sound and its proximity, reproducing the acute sound within an ear canal, where the ear canal is at least partially occluded by an earpiece. Other embodiments are disclosed. | 04-16-2015 |
20150110276 | METHOD AND SYSTEM FOR SOURCE SELECTIVE REAL-TIME MONITORING AND MAPPING OF ENVIRONMENTAL NOISE - A method for source selective real-time monitoring and mapping of environmental noise, comprising the steps of identifying sources in the area; designing places for the monitoring stations; creating a data collecting and data processing centre; measuring the noise impact, and observation of the sources with the sensors; defining the noise propagation; assemblying the monitoring stations including a sound measuring device, a computing unit and a communication unit; determining the resultant noise impact prevailing in the respective measurement points; determining the sources dominant in the individual moments on the basis of the data of the sensors; determining the average noise impact of the respective sources for a longer period; obtaining an average noise impact; extending the measurement into a noise impact map; calculating the effective noise impact of every noise source in every point of the area for every period; producing the effective noise impact map of the respective periods. | 04-23-2015 |
20150110277 | Wearable/Portable Device and Application Software for Alerting People When the Human Sound Reaches the Preset Threshold - The present invention relates generally to a portable/wearable device as well as application or a software program to be downloaded onto a mobile device or computer. The present invention is intended to measure sound intensity/level and provide an alert signal to remind user(s) or crowds (i.e groups of people) that they are speaking too loud or making too much noise. Furthermore, optionally, the device may play a pre-selected music or pre-recorded message when the sound level threshold is exceeded, which can encourage all of the users to use the bio-feedback of the present invention to relax when they see the visual que such as the light color changes, hear the music, message or produced from the device. Another object of the present invention is to help people to know whether his/her voice is loud enough to be heard by people who have hearing impairment. | 04-23-2015 |
20150110278 | Method and System For Estimating Acoustic Noise Levels - The present invention relates to a method and a system for estimating acoustic noise levels. The invention may advantageously be applied in systems comprising multiple audio communication devices, such as e.g. telephones, mobile phones, headsets and headset base stations. | 04-23-2015 |
20150110279 | Multifunctional Wearable Audio-Sensing Electronic Device - A multifunctional wearable audio-sensing electronic device is disclosed in which audio is detected, detected audio is analyzed to determine characteristics of the audio, a warning is generated in response to determining that a decibel level of the detected audio is physically harmful, when the wearable audio-sensing electronic device is in a musical tuner mode, a deviation of the audio from a pre-determined audio characteristics of a musical instrument is displayed, when the wearable audio-sensing electronic device is in a hearing aid mode, an identification of the audio and a direction from which the audio originates is displayed, when the wearable audio-sensing electronic device is in an ambiance indicator mode, a visual representation of an audio ambience is displayed, and when the wearable audio-sensing electronic device is in an audio recorder mode, the audio is recorded to the memory and played back. | 04-23-2015 |
20150117651 | AUDIO OUTPUT APPARATUS AND METHOD FOR AUDIO CORRECTION - An audio output apparatus and a method for audio correction is provided. An audio correction method of an audio output apparatus may include receiving a test signal from a terminal device, generating correction filter information of the terminal device based on the received test signal and a standard signal of the terminal device, and in response to an audio signal being received from the terminal device, correcting the received audio signal based on the correction filter information. | 04-30-2015 |
20150117652 | SOUND SOURCE DETECTION DEVICE, NOISE MODEL GENERATION DEVICE, NOISE REDUCTION DEVICE, SOUND SOURCE DIRECTION ESTIMATION DEVICE, APPROACHING VEHICLE DETECTION DEVICE AND NOISE REDUCTION METHOD - Disclosed is a noise model generation device that generates a noise model suitable for each environment by determining whether an sound source of a detection target is included in sound information collected by an sound collector with high accuracy. The noise model generation device generates a noise model relating to noise information other than the sound source of the detection target included in the sound information collected by the sound collector, which acquires a power spectrum from the sound information; determines whether the sound source of the detection target is included in the sound information collected by evaluating a probability density distribution (histogram) of the power spectrum; and generates a noise model from the collected sound information when it is determined that the sound source of the detection target is not included in the collected sound information. | 04-30-2015 |
20150117653 | METHOD AND APPARATUS FOR EVALUATING AUDIO STREAM QUALITY - Embodiments of the present invention provide a method and an apparatus for evaluating audio stream quality, where the method for evaluating audio stream quality includes: determining at least one non-silence audio data packet in a to-be-evaluated audio stream, where the to-be-evaluated audio stream includes at least one non-silence audio data packet, and each non-silence audio data packet includes at least one non-silence audio frame; and evaluating the at least one non-silence audio data packet in the to-be-evaluated audio stream to generate audio quality evaluation information. The method and the apparatus for evaluating audio stream quality provided by the embodiments of the present invention can avoid impact of a silence part on evaluation of audio quality, thereby improving accuracy of evaluating audio stream quality. | 04-30-2015 |
20150131803 | MEETING MUTING - A system can include a processor; memory operatively coupled to the processor; a microphone operatively coupled to the processor; a speaker operatively coupled to the processor; and circuitry that mutes the speaker based on detection of voices via the microphone. A method can include detecting two different voices via a microphone of a device; and responsive to the detecting, muting a speaker of the device. Various other apparatuses, systems, methods, etc., are also disclosed. | 05-14-2015 |
20150131804 | COMPUTER SYSTEM, AUDIO MATCHING METHOD, AND NON-TRANSITORY COMPUTER-READABLE RECORDING MEDIUM THEREOF - A computer system is configured for performing audio matching. The computer system includes a client terminal and a server. The client terminal includes a classifier, a first landmark extraction module, a first encoder module and an integration module. The classifier is configured for estimating an identification difficulty. The first landmark extraction module is configured for determining the number of times for landmark extraction, and for extracting first landmarks. The first encoder module is configured for encoding the first landmarks. The server includes a second landmark extraction module, a second encoder module, a hash table, a table-lookup module, an analysis module and a decision module. The second landmark extraction module is configured for extracting second landmarks. The second encoder module is configured for encoding the second landmarks. The table-lookup module is configured for performing a table lookup. The decision module is configured for determining an audio matching result. | 05-14-2015 |
20150131805 | AUDIO SIGNAL PROCESSING DEVICE, STORAGE MEDIUM AND AUDIO SIGNAL PROCESSING METHOD - Respective signal processing modules are executed in a DSP of an audio signal processing device, and also a signal abnormality detecting module is executed. The signal abnormality detecting module executes processing to detect a clip at metering points set at input and output ends of respective signal processing modules, and store in the storage an audio signal in which the clip is detected while correlating with the measuring points the metering point at which the clip is detected. The audio signal stored in the storage is outputted by the output module. | 05-14-2015 |
20150139430 | Speaker Device - To provide a speaker apparatus that can detect miswiring to a speaker unit or trouble of a speaker unit itself. The speaker apparatus is configured to include: two or more speaker units | 05-21-2015 |
20150139431 | STORAGE MEDIUM STORING INFORMATION PROCESSING PROGRAM, INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING SYSTEM, AND SOUND DETERMINATION METHOD - An example information processing device determines a sound input to a microphone. The information processing device includes an obtaining section, a mean amplitude calculation section, and a determination section. The obtaining section obtains data of a sound detected by the microphone. For a sound of a predetermined determination segment, the mean amplitude calculation section calculates a mean amplitude, which is an average amplitude, for each of a plurality of partial segments included in the determination segment. The determination section determines whether or not the sound input to the microphone is a predetermined type of a sound (e.g., a sound made by breath blowing) based on the mean amplitudes for the partial segments. | 05-21-2015 |
20150139432 | DEVICE FOR MEASURING SOUND LEVEL - A device for measuring sound level, comprising: an inlet opening; a MEMS microphone for measuring sound level; and an external acoustic attenuator with a pressure divider comprising: a first branch between the inlet opening and the membrane of the MEMS microphone via an inlet channel and a resonant cavity; and a second branch between the resonant cavity and a vent chamber via a vent channel. | 05-21-2015 |
20150146874 | SIGNAL PROCESSING FOR AUDIO SCENE RENDERING - Apparatus has at least one processor and at least one memory having computer-readable code stored therein which when executed controls the at least one processor to perform a method. The method comprises processing first and second (5) sets of substantially live audio data originating from first and second devices respectively to determine whether the first and second devices are observing a common audio scene, processing orientation information originating from the first and second devices to determine whether the devices are similarly oriented, and triggering a first action in response to determining both that the first and second (10) devices are observing a common audio scene and that the first and second devices are similarly oriented. | 05-28-2015 |
20150304784 | METHOD AND APPARATUS TO PROVIDE SURROUNDINGS AWARENESS USING SOUND RECOGNITION - Surrounding awareness is provided using sound recognition by detecting sound, determining frequency components of the detected sound and comparing the frequency components of the detected sound to the frequency components of known sound sources. If the components of a known sound source are detected, the source of the sound is determined to be present. An appropriate warning or enunciation of the sound source is provided. | 10-22-2015 |
20150304785 | Portable Electronic Device with Acoustic and/or Proximity Sensors and Methods Therefor - An electronic device includes a housing and a user interface. The electronic device also includes an acoustic detector and one or more processors operable with the acoustic detector. The one or more processors can receive, from the user interface, user input corresponding to an operation of the electronic device. The one or more processors can then optionally initiate a timer in response to receiving the user input and monitor the acoustic detector for a predefined acoustic marker, one example of which is acoustic data indicating detection of one or more finger snaps. Where the one or more finger snaps occur prior to expiration of the timer, the one or more processors can perform the operation of the electronic device. Otherwise ignore the user input. The acoustic confirmation of user input helps to eliminate false triggers, thereby conserving battery power and extending run time. | 10-22-2015 |
20150316640 | METHOD AND APPARATUS FOR ASSOCIATING AUDIO OBJECTS WITH CONTENT AND GEO-LOCATION - An approach is provided for efficiently capturing, processing, presenting, and/or associating audio objects with content items and geo-locations. A processing platform may determine a viewpoint of a viewer of at least one content item associated with a geo-location. Further, the processing platform and/or a content provider may determine at least one audio object associated with the at least one content item, the geo-location, or a combination thereof. Furthermore, the processing platform may process the at least one audio object for rendering one or more elements of the at least one audio object based, at least in part, on the viewpoint. | 11-05-2015 |
20150326971 | METHODS AND SYSTEMS FOR ACTIVE SOUND ATTENUATION IN A FAN UNIT - A system and method for controlling noise produced by an air handling system, for example, is provided. The system includes a source microphone to collect sound measurements from the air handling system and a processor to define a cancellation signal that at least partially cancels out the sound measurements. The system also includes a speaker to generate the cancellation signal. The sound measurements are at least partially canceled out within a region of cancellation. Accordingly, the system further includes a response microphone to collect response sound measurements at the region of cancellation. The processor tunes the cancellation signal based on the response sound measurements. | 11-12-2015 |
20150326985 | HAND-WORN DEVICE FOR SURFACE GESTURE INPUT - Embodiments that relate to energy efficient gesture input on a surface are disclosed. One disclosed embodiment provides a hand-worn device that may include a microphone configured to capture an audio input and generate an audio signal, an accelerometer configured to capture a motion input and generate an accelerometer signal, and a controller comprising a processor and memory. The controller may be configured to detect a wake-up motion input based on the accelerometer signal. The controller may wake from a low-power sleep mode in which the accelerometer is turned on and the microphone is turned off and enter a user interaction interpretation mode in which the microphone is turned on. Then, the controller may contemporaneously receive the audio signal and the accelerometer signal and decode strokes. Finally, the controller may detect a period of inactivity based on the audio signal and return to the low-power sleep mode. | 11-12-2015 |
20150331095 | SOUND DETECTION DEVICE AND SOUND DETECTION METHOD - A sound detection device is provided in a moving body and includes a sound detection unit configured to detect an ambient sound of the moving body and a determination unit configured to determine at least one of the presence of a sound source to be detected around the moving body, the approach of the sound source to the moving body, and the separation of the sound source from the moving body, on the basis of a degree of correlation between sound pressure information of a first preset frequency band in the ambient sound detected by the sound detection unit and sound pressure information of a second frequency band different from the first frequency band in the ambient sound detected by the sound detection unit. | 11-19-2015 |
20150331938 | APPARATUS AND METHOD FOR DETERMINING CO-LOCATION OF SERVICES - Automatic content recognition may be utilized to compare audio sampled by one remote user device to audio sampled by another remote user device. Comparisons that match with a sufficient level of confidence may permit a conclusion that the remote user devices are co-located. A remote user device may be associated with an individual or a location. The remote user device may be a device used to collect or process audio information. The remote user device may be a smart phone, tablet or other device. A remote user device may have a probe to collect information for use in automatic content recognition. The remote user device may generate device identification in the form of inaudible audio to assist in determining co-location. The processing may be more efficient by limiting the signature comparisons location and temporal proximate entries. | 11-19-2015 |
20150350799 | INDUSTRIAL AUDIO NOISE MONITORING SYSTEM - A wireless field device for use in monitoring acoustic noise includes an acoustic sensor configured to sense acoustic noise. Processing circuitry coupled to the acoustic sensor is configured to identify a hazardous noise condition based upon the sensed acoustic noise and a personnel noise exposure standard. Output circuitry provides a warning output in response to an identified noise condition. A system is also provided which uses one or more acoustic sensors implemented in wireless field mounted monitors. | 12-03-2015 |
20150358718 | HEADPHONE RESPONSIVE TO OPTICAL SIGNALING - An optical sensor may be integrated into headphones and feedback from the sensor used to adjust an audio output from the headphones. For example, an emergency vehicle traffic preemption signal may be detected by the optical sensor. Optical signals may be processed in a pattern discriminator, which may be integrated with an audio controller integrated circuit (IC). When the signal is detected, the playback of music through the headphones may be muted and/or a noise cancellation function turned off. The optical sensor may be integrated in a music player, a smart phone, a tablet, a cord-mounted module, or the earpieces of the headphones. | 12-10-2015 |
20150358752 | A SYSTEM FOR LOCALIZING SOUND SOURCE AND THE METHOD THEREFOR - It is provided a system for localizing a sound source and a method therefor. The system includes a movable unit, being adapted for free movement and being integrated with a microphone; a motion tracking unit; and a processing unit, being adapted for receiving microphone signal and motion tracking unit signal and obtaining information on a direction from which sound from the sound source arrives using the microphone signal and motion tracking unit signal obtained during movement of the movable unit. By having the system and the method therefor, it is helpful for solving at least one of the technical problems: the complexity and a large volume of an acoustic camera for localization of a sound source; the restriction of the movement of the microphone in a sound source localization system. | 12-10-2015 |
20150373467 | HEADPHONE LISTENING APPARATUS - In at least one embodiment, a headphone listening apparatus including an audio listening device is provided. The audio listening device is programmed to receive an incoming ambient audio signal indicative of an external ambient sound and to store a plurality of desired audio triggers. The audio listening device is further programmed to compare the external ambient sound to the plurality of desired audio triggers and to transmit a notification signal to headphones in response to the ambient sound being generally similar to a first desired audio trigger of the plurality of desired audio triggers. The headphones are programmed to provide an audio alert to a user to indicate the presence of the external ambient sound. | 12-24-2015 |
20150373468 | PROXIMITY DISCOVERY USING AUDIO SIGNALS - Various technologies pertaining to computing data that is indicative of a location of a client computing device are described herein. A client computing device is configured to capture an audio signal, the audio signature being indicative of acoustics of surroundings of the client computing device. A signature is generated based upon a high frequency portion of the captured audio signal, and the signature is compared with other signatures. The other signatures are generated based upon high frequency portions of audio signals captured by other computing devices. A determination regarding the client computing device being co-located with a second client computing device is made based upon the comparison of the signature with the other signatures. | 12-24-2015 |
20150382120 | EAR PRESSURE SENSORS INTEGRATED WITH SPEAKERS FOR SMART SOUND LEVEL EXPOSURE - Systems and methods may provide for a headset including a housing and a speaker positioned within the housing and directed toward a region external to the housing such as, for example, an ear canal when the headset is being worn. The headset may also include an ear pressure sensor positioned within the housing and directed toward the same region external to the housing. In one example, a measurement signal is received from the pressure sensor, one or more characteristics of an audio signal are automatically adjusted based on the measurement signal, and the audio signal is transmitted to the speaker. | 12-31-2015 |
20160007116 | ROOM AND PROGRAM RESPONSIVE LOUDSPEAKER SYSTEM - A home audio system that includes an audio receiver and one or more loudspeaker arrays is described. The audio receiver measures the acoustic properties of the room in which the loudspeaker arrays reside and the audio characteristics of the sound program content to be played through the loudspeaker arrays. Based on these measurements, the audio receiver assigns a directivity ratio and potentially various beam patterns to one or more segments of the sound program content. The assigned directivity ratio is used by the receiver to play the segment of the sound program content through the loudspeaker arrays. Other embodiments are also described. | 01-07-2016 |
20160019913 | SIGNAL PROCESSING APPARATUS, SIGNAL PROCESSING METHOD, AND SIGNAL PROCESSING PROGRAM - Disclosed is a signal processing apparatus that processes an input signal to accurately detect an abrupt change in the input signal in accordance with the degree of linear change of a phase component in a frequency domain. The signal processing apparatus includes a converter that converts the input signal into the phase component and an amplitude component in the frequency domain, a linearity calculator that calculates the linearity of the phase component in the frequency domain, and a determiner that determines presence of the abrupt change in the input signal based on the linearity calculated by the linearity calculator. | 01-21-2016 |
20160019914 | SIGNAL PROCESSING APPARATUS, SIGNAL PROCESSING METHOD, AND SIGNAL PROCESSING PROGRAM - This invention provides a signal processing apparatus for effectively detecting an abrupt change in an input signal. The signal processing apparatus includes a converter that converts an input signal into a phase component signal and an amplitude component signal in a frequency domain. The signal processing apparatus further includes a calculator that calculates feature amounts of the phase component signal and the amplitude component signal derived by the converter. The signal processing apparatus further includes a determiner that determines presence probability of an abrupt change in the input signal based on the feature amounts calculated by the calculator. | 01-21-2016 |
20160021474 | SOUND VELOCITY CORRECTION DEVICE - Provided a sound velocity correction device including an environmental parameter obtainer that acquires a measured value of a surrounding environmental parameter of a sound collector that collects a sound emitted from a sound source; and a sound velocity corrector that corrects a sound velocity of the sound which is used to form directivity in a directing direction toward the sound source from the sound collector, using the measured value of the surrounding environmental parameter of the sound collector which is acquired by the environmental parameter obtainer. | 01-21-2016 |
20160027467 | ROOM MONITORING DEVICE WITH CONTROLLED RECORDING - A system monitors a person in a dwelling. A detection device is in communication with the user monitoring device. The detection device includes at least one motion/movement gesture sensing device configured to detect at least one of a person's motion, movement and gesture. A user monitoring device includes at least two elements selected from: a proximity sensor; a temperature sensor/humidity sensor; a particulate sensor; a light sensor; a microphone; a speaker; two RF transmitters (BLE/ANT+WIFI); a memory card; and LED's. Recording of a sound of a person's motion, movement and gesture is not always preserved. | 01-28-2016 |
20160044429 | COMPUTING DEVICE IDENTIFICATION USING DEVICE-SPECIFIC DISTORTIONS OF A DISCONTINUOUS AUDIO WAVEFORM - Disclosed is a novel technique and method for determining a device-unique signature capable of accurately identifying a particular mobile phone, tablet, or other personal computing device | 02-11-2016 |
20160049162 | AUDIO SIGNAL SIZE CONTROL METHOD AND DEVICE - An audio signal size control method is disclosed. The control method comprises the steps of: measuring a first audio signal size which is the size of the input audio signal; scaling the input audio signal using a preset initial peak weighting value and measuring a second audio signal size which is the size of the scaled audio signal; detecting a third audio signal size by applying the first audio signal size to a preset mapping table for maintaining the sound deviation of the audio signal to be output; and adjusting the size of the input audio signal using the first audio signal size, the second audio signal size, and the third audio signal size. | 02-18-2016 |
20160050488 | SYSTEM AND METHOD FOR IDENTIFYING SUBOPTIMAL MICROPHONE PERFORMANCE - Embodiments disclosed herein may include determining a signal parameter of a first microphone and a second microphone associated with a computing device. Embodiments may include generating a reference parameter based upon at least one of the parameter of the first microphone and the parameter of the second microphone. Embodiments may include adjusting a tolerance of at least one of the first microphone and the second microphone, based upon the reference parameter. Embodiments may include receiving, at the first microphone, a first speech signal, the first speech signal having a first speech signal magnitude and receiving, at the second microphone, a second speech signal, the second speech signal having a second speech signal magnitude. Embodiments may include comparing at least one of the first speech signal magnitude and the second speech signal magnitude with a third speech signal magnitude and detecting an obstructed microphone based upon the comparison. | 02-18-2016 |
20160050506 | AUDIO SENSING DEVICE AND METHOD OF ACQUIRING FREQUENCY INFORMATION - An audio sensing device having a resonator array and a method of acquiring frequency information using the audio sensing device are provided. The audio sensing device includes a substrate having a cavity formed therein, a membrane provided on the substrate and covering the cavity, and a plurality of resonators provided on the membrane and respectively sensing sound frequencies of different frequency bands. | 02-18-2016 |
20160055836 | Visual Sound Tower - A device for visually indicating the ambient noise level is provided. The device includes an elongated cylinder having a plurality of sections. The plurality of sections are in a stacked configuration and includes a lower section, a middle section, and an upper section. A plurality of lights are disposed in each section of the elongated cylinder. The plurality of sections are configured to illuminate at each section of the elongated cylinder corresponding to a predetermined noise level. A control box is in electrical communication with the lights disposed in the elongated cylinder. The control box includes a microphone, a power source and a control circuit. The elongated cylinder provides a visual indication of the sound level via the illuminated sections which correspond to the noise level detected by the microphone. | 02-25-2016 |
20160066113 | SELECTIVE ENABLING OF A COMPONENT BY A MICROPHONE CIRCUIT - A microphone circuit includes a microphone configured to generate a microphone signal. The microphone circuit also includes a processor configured to perform sound detection based on the microphone signal and to determine whether to enable a component based on the sound detection. For example, the processor may be a digital signal processor (DSP) of the microphone circuit and the component may be external to the microphone circuit, such as a coder/decoder (CODEC), another DSP, and/or an application processor. | 03-03-2016 |
20160066114 | LOUDNESS METER AND LOUDNESS METERING METHOD - A dual loudness meter is disclosed, simultaneously displaying the current loudness of an audio signal and of a processed audio signal, and also displaying the previous loudness of both audio signals. | 03-03-2016 |
20160073207 | SOUND BASED NAVIGATION USING A PORTABLE COMMUNICATIONS DEVICE - Sound based navigation using a portable communications device is presented herein. A portable communications device can include a speaker for generating a sound, and microphone(s) for receiving a reflection of the sound—the reflection including an acoustic wave that has been reflected from an object. Further, the portable communications device can include a timing component configured to determine a time of propagation of the acoustic wave from the speaker to the microphone(s), and a distance component configured to determine a distance of the object from the portable communications device based on the time of propagation of the acoustic wave. Furthermore, the portable communications device can include a mapping component configured to: determine a geographic location of the portable communications device, and create, based on the geographic location and the distance of the object from the portable communications device, a map, indoor map, etc. of objects, structures, etc. comprising the object. | 03-10-2016 |
20160078879 | Apparatuses and Methods for Audio Classifying and Processing - Apparatus and methods for audio classifying and processing are disclosed. In one embodiment, an audio processing apparatus includes an audio classifier for classifying an audio signal into at least one audio type in real time; an audio improving device for improving experience of audience; and an adjusting unit for adjusting at least one parameter of the audio improving device in a continuous manner based on the confidence value of the at least one audio type. | 03-17-2016 |
20160078882 | MEASURING CONTENT COHERENCE AND MEASURING SIMILARITY - Embodiments for measuring content coherence and embodiments for measuring content similarity are described. Content coherence between a first audio section and a second audio section is measured. For each audio segment in the first audio section, a predetermined number of audio segments in the second audio section are determined. Content similarity between the audio segment in the first audio section and the determined audio segments is higher than that between the audio segment and all the other audio segments in the second audio section. An average of the content similarity between the audio segment in the first audio section and the determined audio segments is calculated. The content coherence is calculated as an average, the maximum or the minimum of the averages calculated for the audio segments in the first audio section. The content similarity may be calculated based on Dirichlet distribution. | 03-17-2016 |
20160093291 | PROVIDING AN INDICATION OF THE SUITABILITY OF SPEECH RECOGNITION - This relates to providing an indication of the suitability of an acoustic environment for performing speech recognition. One process can include receiving an audio input and determining a speech recognition suitability based on the audio input. The speech recognition suitability can include a numerical, textual, graphical, or other representation of the suitability of an acoustic environment for performing speech recognition. The process can further include displaying a visual representation of the speech recognition suitability to indicate the likelihood that a spoken user input will be interpreted correctly. This allows a user to determine whether to proceed with the performance of a speech recognition process, or to move to a different location having a better acoustic environment before performing the speech recognition process. In some examples, the user device can disable operation of a speech recognition process in response to determining that the speech recognition suitability is below a threshold suitability. | 03-31-2016 |
20160100265 | AUDIO IDENTIFICATION DEVICE, AUDIO IDENTIFICATION METHOD AND AUDIO IDENTIFICATION SYSTEM - An audio identification device is provided. The audio identification device comprises: at least one sensing device configured to capture an audio signal present in a working space of a processing setup including at least one processing device; and a processor configured to: receive information related to the at least one processing device; retrieve audio data stored in a database using the received information related to the at least one processing device; identify a state of the at least one processing device by analyzing the audio signal captured by the at least one sensing device based on the retrieved audio data; and output a response, the response being determined based on the identified state of the at least one processing device. | 04-07-2016 |
20160100266 | SYSTEM AND METHOD FOR USE IN ANALYZING VIBRATIONS - A system for use in analyzing vibrations of an electrical machine is provided. The system includes a conversion computing device including at least one processor. The conversion computing device is configured to receive at least one analog vibration signal representing vibrations associated with an electrical machine, convert the at least one analog vibration signal to audio data, and transmit the audio data to an analysis computing device. | 04-07-2016 |
20160100267 | METHOD AND DEVICES FOR OUTPUTTING AN AUDIO FILE - Methods and devices for flexible and adaptable outputting of audio files in text or audio format based on certain parameters are described. Before delivering an acquired audio file to a user, the methods and devices described herein detect a current value of a pre-specified parameter, such as an environmental noise parameter, a mute setting parameter, a ring tone setting parameter, an audio/video playback parameter, or a setting parameter of an application acquiring the audio file, and compare the current value of the pre-specified parameter with a preset condition for the same parameter. The methods and devices described herein with output the audio file or a text file created from the audio file depending on the result of the comparison. | 04-07-2016 |
20160112816 | APPARATUS AND METHOD FOR RECOGNIZING HORN USING SOUND SIGNAL PROCESSOR - An apparatus and a method for recognizing a horn using a sound signal processor are provided. The apparatus includes a data storage unit configured to acquire and store surrounding sound data and a sound signal processor configured to sample a sound signal within the sound data, perform signal conversion, and define and extract the frequency signals. In addition, a horn recognizer is configured to combine the extracted frequency signals, accumulate the frequency signals, and digitize a change rate of the accumulated frequency signals. Further, an output data determiner is configured to determine whether the digitized change rate of the frequency signals is equal to or greater than a threshold value to determine whether and when the horn is generated. | 04-21-2016 |
20160118058 | FREQUENCY RESPONSE DISPLAY - A system and method are provided for displaying a frequency response for a sound system design. Coverage map data is processed for a listening area. The coverage map data comprises a plurality of samples. Frequency response data is computed for each sample. The frequency response data is accumulated into a plurality of distributions. A statistical frequency response display is generated based on the distributions. | 04-28-2016 |
20160118059 | DRONE DETECTION AND CLASSIFICATION METHODS AND APPARATUS - A system, method, and apparatus for drone detection and classification are disclosed. An example method includes receiving a sound signal in a microphone and recording, via a sound card, a digital sound sample of the sound signal, the digital sound sample having a predetermined duration. The method also includes processing, via a processor, the digital sound sample into a feature frequency spectrum. The method further includes applying, via the processor, broad spectrum matching to compare the feature frequency spectrum to at least one drone sound signature stored in a database, the at least one drone sound signature corresponding to a flight characteristic of a drone model. The method moreover includes, conditioned on matching the feature frequency spectrum to one of the drone sound signatures, transmitting, via the processor, an alert. | 04-28-2016 |
20160118061 | ELECTRONIC DEVICE, METHOD, AND COMPUTER PROGRAM PRODUCT - In general, according to one embodiment, an electronic device includes circuitry. The circuitry is configured to acquire audio data obtained by collecting sounds around the electronic device, and to identify, based on the acquired audio data, the type of the surrounding environment using a density of people around the electronic device or information as to whether a surrounding natural environment is present. | 04-28-2016 |
20160119730 | METHOD FOR IMPROVING AUDIO QUALITY OF ONLINE MULTIMEDIA CONTENT - Disclosed is a method for improving audio quality of online multimedia content. The method includes sending an input audio sample to at least one speaker positioned within a premises, playing the input audio sample at the at least one speaker to produce a corresponding audio, recording the audio produced by the at least one speaker as a recorded audio sample at a multimedia processing device positioned in a proximity of the at least one speaker, comparing the recorded audio sample with the input audio sample for calculating acoustical characteristics of the premises and adjusting an audio quality of an online multimedia content to be played within the premises based on the calculated acoustical characteristics. | 04-28-2016 |
20160127816 | VOICE INPUT HANDLING - In an input device it is determined that an input indicator mechanism is selected for a predetermined period of time. Speech is recorded based on the input indicator mechanism being selected. | 05-05-2016 |
20160133115 | System and Method for Noise Detection - Embodiments provide a system and method for noise detection. | 05-12-2016 |
20160134984 | DETERMINING NOISE AND SOUND POWER LEVEL DIFFERENCES BETWEEN PRIMARY AND REFERENCE CHANNELS - A method for estimating a noise power level difference (NPLD) between a primary microphone and a reference microphone of an audio device includes obtaining primary and reference channels of an audio signal with primary and reference microphones of an audio device and estimating a noise magnitude of the reference channel of the audio signal to provide a noise variance estimate for one or more frequencies. A modelled probability density function (PDF) of a fast Fourier transform (FFT) coefficient of the primary channel of the audio signal is maximized to provide a NPLD between the noise variance estimate of the reference channel and a noise variance estimate of the primary channel. A modelled PDF of an FFT coefficient of the reference channel of the audio signal is maximized to provide a complex speech power level difference (SPLD) coefficient between the speech FFT coefficients of the primary and reference channel. A corrected noise magnitude of the reference channel is then calculated based on the noise variance estimate, the NPLD and the SPLD coefficient. | 05-12-2016 |
20160142817 | METHOD AND DEVICE FOR MEASUREMENT OF PROPAGATION DELAY CHARACTERISTIC IN MULTIPATH PROPAGATION ENVIRONMENT, AND EXTERNAL AUDIO PERCEPTION DEVICE - A method for measuring propagation delay characteristics in a multipath propagation environment, wherein the propagation delay characteristics are measured between a transmission means and a reception means provided in the multipath propagation environment, the method comprising a transmission step of transmitting a measurement signal comprising an information signal having a predetermined frequency from the transmission means; a reception step of receiving the measurement signal that has traveled along a plurality of propagation paths by the reception means; a calculation step of performing Hilbert transform on the received information signal to calculate instantaneous frequency characteristics from a resulting Hilbert transform signal; and an output step of outputting propagation delay characteristics corresponding to the frequency of the information signal based on the instantaneous frequency characteristics. | 05-19-2016 |
20160150314 | INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING SYSTEM, CONTROL METHOD, AND PROGRAM - An information processing device includes: a reflecting surface determining section configured to determine a reflecting surface as an object for reflecting a sound; a reflecting surface information obtaining section configured to obtain reflecting surface information indicating a reflection characteristic of the determined reflecting surface; and an output control portion configured to output a directional sound according to the obtained reflecting surface information to the determined reflecting surface. | 05-26-2016 |
20160150333 | SOUND LIBRARY AND METHOD - At least one exemplary embodiment is directed to an electronic device configured to collect acoustic information or a method including the steps of collecting acoustic data by a microphone communicatively coupled to a mobile device, analyzing the acoustic data for a sound signature, tagging the sound signature with metadata, sending the sound signature with metadata to an acoustic database, associating sounds within the acoustic data with information, presenting the information on a map on the mobile device, and accessing at least audio from the acoustic database when a cursor is placed over a specific location on the map corresponding to captured ambient sounds from a geographic location and wherein acoustic information can be retrieved corresponding to the geographic location and for different selected periods of time. | 05-26-2016 |
20160155452 | Method for Siren Detection Based on Audio Samples | 06-02-2016 |
20160155455 | A SHARED AUDIO SCENE APPARATUS | 06-02-2016 |
20160156692 | AUDIO SIGNAL QUALITY MEASUREMENT IN MOBILE DEVICE | 06-02-2016 |
20160157032 | SYSTEM AND METHOD FOR DETECTING AND ANALYZING NEAR RANGE WEAPON FIRE | 06-02-2016 |
20160157034 | TESTING EQUIPMENT OF ONBOARD AIR CONDITIONING SYSTEM AND A METHOD OF TESTING THE SAME | 06-02-2016 |
20160163168 | DETECTION AND CLASSIFICATION OF ABNORMAL SOUNDS - An audio surveillance system includes a plurality of nodes and each node includes a microphone, a speaker, and a control unit. The microphone is configured to detect sound and the speaker is configured to provide sound. The control unit is configured to receive a plurality of inputs from the plurality of nodes and the plurality of inputs are based on a detected sound; determine a location of the source of the detected sound based on the plurality of inputs; classify the detected sound according to predefined alert conditions and based on the location of the source of the detected sound; provide an alert to a monitoring device regarding the detected sound based on the classification of the detected sound; and control at least one node from the plurality of nodes to provide an audio response to the detected sound. | 06-09-2016 |
20160163302 | SYSTEM COMPRISING A SOUND ATTENUATING PANEL - The invention provides a system ( | 06-09-2016 |
20160165372 | EXCESSIVE VOICE VOLUME ALERTING - A method includes detecting via a phone, a volume level of a user's voice while using the phone, comparing via the phone whether the volume level of the user's voice exceeds a specified threshold, and providing an indication to the user via the phone when the volume level exceeds the specified threshold. | 06-09-2016 |
20160171965 | VIBRATION SOURCE ESTIMATION DEVICE, VIBRATION SOURCE ESTIMATION METHOD, AND VIBRATION SOURCE ESTIMATION PROGRAM | 06-16-2016 |
20160171967 | Sensed Sound Level Based Fan Speed Adjustment | 06-16-2016 |
20160182172 | DATA COMMUNICATION WITH ACOUSTIC SIGNAL COMMUNICATION | 06-23-2016 |
20160183020 | AUDIO SIGNAL VERIFICATION FOR VIDEO/AUDIO PRODUCTION EQUIPMENT | 06-23-2016 |
20160189732 | DRONE DETECTION AND CLASSIFICATION METHODS AND APPARATUS - A system, method, and apparatus for drone detection and classification are disclosed. An example method includes receiving a sound signal in a microphone and recording, via a sound card, a digital sound sample of the sound signal, the digital sound sample having a predetermined duration. The method also includes processing, via a processor, the digital sound sample into a feature frequency spectrum. The method further includes applying, via the processor, broad spectrum matching to compare the feature frequency spectrum to at least one drone sound signature stored in a database, the at least one drone sound signature corresponding to a flight characteristic of a drone model. The method moreover includes, conditioned on matching the feature frequency spectrum to one of the drone sound signatures, transmitting, via the processor, an alert. | 06-30-2016 |
20160192069 | MOTION DETECTION FOR MICROPHONE GATING - A system and method for performing microphone gating operations, is disclosed. The system and method include a transmitter configured to emit a transmit signal towards an object and a receiver configured to receive a reflected signal from the object, the reflected signal corresponding to the transmit signal. The system and method also include a controller configured to instruct the transmitter to emit the transmit signal and receive the reflected signal from the receiver. The controller is further configured to detect motion of the object based upon the reflected signal and turn a microphone on or off based upon the motion of the object. | 06-30-2016 |
20160192097 | METHOD AND APPARATUS FOR CONTROLLING AN APPLICATION - In an example embodiment, method, apparatus and computer program product are provided. The method includes capturing an acoustic signal by a microphone of an apparatus to generate an electrical output signal. The acoustic signal is rendered in response to a source audio signal by a speaker through at least one speaker interface element of the apparatus. The electrical output signal is compared to the source audio signal in order to determine whether the electrical output signal is being affected by mechanical vibrations caused at least partially by the speaker interface element being at least partially interfered by a user. A predetermined action is further performed in the apparatus whenever it is determined that the electrical output signal is affected by the mechanical vibrations caused at least partially by the speaker interface element being at least partially interfered by the user. | 06-30-2016 |
20160192098 | Calibration Adjustment Based On Barrier - Embodiments described herein involve configuring a playback device based on the detection of a barrier in proximity to the playback device. An example implementation may involve configuring the playback device for audio output in a given environment by calibrating the playback device to at least partially offset acoustic effects of the given environment. After the playback device is configured for audio output, the playback device may detect a barrier within proximity of the playback device by detecting a change in the acoustic effects of the given environment. In response to detecting the barrier within proximity of the playback device, the playback device may adjust the calibration. | 06-30-2016 |
20160192099 | Playback Device Setting Based On Distortion - Embodiments described herein involve configuring a playback device based on the detection of a barrier in proximity to the playback device. In an example embodiment, a playback device causes one or more speakers to emit audio and then receives audio data representing at least a portion of the emitted audio. The playback device determines, based on the received audio data, that a barrier is distorting audio output of the playback device by at least a distortion threshold. In response to determining that the barrier is distorting audio output of the playback device beyond the distortion threshold, the playback device applies a playback configuration that at least partially offsets the distortion. The playback device may cause the one or more speakers to play back audio content according to the playback configuration. | 06-30-2016 |
20160198278 | SYSTEM AND METHOD FOR AUDIO SIGNAL CLIP DETECTION AND INDICATION | 07-07-2016 |
20160205486 | AUDIO PROCESSING SYSTEM | 07-14-2016 |
20180027347 | METHOD AND SYSTEM FOR ANALYSING SOUND | 01-25-2018 |
20190147845 | Method And Device For Acute Sound Detection And Reproduction | 05-16-2019 |
20190149932 | DETECTION OF LOUDSPEAKER PLAYBACK | 05-16-2019 |
20190149934 | DEVICE FOR AIRBORNE SOUND ACOUSTIC SENSING OF THE SURROUNDINGS OF A VEHICLE, VEHICLE | 05-16-2019 |
20190149941 | PARTICLE-BASED SPATIAL AUDIO VISUALIZATION | 05-16-2019 |
20220139367 | INFORMATION PROCESSING DEVICE AND CONTROL METHOD - An information processing device includes a signal acquisition unit that acquires a voice signal of an object person outputted from a mic array and a control unit that acquires at least one of noise level information indicating a noise level of noise and first information as information indicating whether or not an obstructor is speaking while obstructing speech of the object person and changes a beam width as a width of a beam corresponding to an angular range of acquired sound, centering at the beam representing a direction in which voice of the object person is inputted to the mic array, and dead zone formation intensity as a degree of suppressing at least one of the noise and voice of the obstructor inputted to the mic array based on at least one of the noise level information and the first information. | 05-05-2022 |