Entries |
Document | Title | Date |
20080219460 | Bug detector - This present invention provides a bug detector for detecting a hidden bug, comprising: an acoustic generator, an identification decoder, and a control device. The acoustic generator generates a specific audio signal for the microphone of the bug receiving the specific audio signal and outputting a radio signal through the radio transmitter. The identification decoder receives the radio signal for decoding so as to obtain a decoded audio signal. The control device connects to the acoustic generator and the identification decoder for comparing the specific audio signal with the decoded audio signal so as to determine that the bug is existence or not. | 09-11-2008 |
20080219461 | 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. | 09-11-2008 |
20080226086 | Audio Signal Processing System - In a mixer system having a digital mixer having functions processing waveform data in plural input channels and outputting the data via an ST bus, and a PC executing a DAW application realizing a function of plural tracks to record and reproduce waveform data, it is made possible to set a first mode instructing the digital mixer to process waveform data inputted from outside the system in all input channels and the DAW application to mix the waveform data in all tracks to supply to the ST bus of the digital mixer, and a second mode instructing the digital mixer to process waveform data received from the DAW application in all input channels and the DAW application to send the waveform data in all tracks to corresponding input channels of the digital mixer. | 09-18-2008 |
20080260169 | Headset Derived Real Time Presence And Communication Systems And Methods - A method for real time digital instant messaging includes monitoring a condition of a wireless headset, estimating a potential for the user to receive and immediately respond to a real time digital message, such as an instant communications or a VoIP message, and then selectively directing a real time digital message, when received, to the user via the headset when the estimated potential indicates that the user is reasonably likely to immediately respond to the real time digital message. A sensor in the headset may be used to determine if a recent action of the user was don the headset by putting it on, doff the headset by taking it off, dock the headset by placing it in a charging station, move while wearing the headset, leave the headset on a desktop or other surface or carry the headset. | 10-23-2008 |
20080285764 | Method for Automatically Controling Volume Level for Calculating Mos - The present invention relates to a method of automatically controlling the volume level of communication speech for Mean Opinion Score (MOS) measurement, which, before evaluating the quality of communication speech using a MOS measurement method, automatically controls the volume level of actual communication speech to a predetermined optimal level, thus improving the reliability of MOS values. | 11-20-2008 |
20080298599 | SYSTEM AND METHOD FOR EVALUATING PERFORMANCE OF MICROPHONE FOR LONG-DISTANCE SPEECH RECOGNITION IN ROBOT - A system and method for evaluating performance of a microphone for long-distance speech recognition, which enables a robot to receive and respond to voices. A robot, which includes a network robot, must correctly recognize speech in order to recognize the user and to perceive its surroundings, objective evaluation criteria are required for choosing a microphone to be used in the robot. The methods include measuring a degree of attenuation of the voice, measuring a degree of distortion of the voice, and simultaneously measuring the degree of attenuation of the voice and the degree of distortion of the voice. A standard for the choice of a microphone, which can be digitalized, for a speech recognition function of a robot, permits choice of a microphone which has good sensitivity and can pick up voices without distortion when used at a large distance. | 12-04-2008 |
20090003613 | Method of Performing Measurements By Means of an Audio System Comprising Passive Loudspeakers - The present invention relates to a method of performing measurements by means of an audio system comprising passive loudspeakers, whereby said measurements loudspeakers for producing sound and at least one of said loudspeakers for measuring said sound. The present invention further relates to an audio system comprising N passive loudspeakers, wherein said audio system further comprises an output stage where each output acts as a combined output channel and a measurement input. | 01-01-2009 |
20090052678 | AUDIO TEST APPARATUS AND TEST METHOD THEREOF - An audio test apparatus, and an exemplary audio test method that includes: processing an audio file through two independent channels; outputting no signals from a left channel and from a right channel in a first time period; receiving noise signals from the left and right channels; outputting single-frequency signals from the left channel only in a second time period; receiving the single-frequency signals from the left channel and crosstalk signals from the right channel; outputting multi-frequency signals from the left and right channels in a third time period; receiving the multi-frequency signals from the left and right channels; outputting single-frequency signals from the right channel only in a fourth time period; receiving the crosstalk signals from the left channel and the single-frequency signals from the right channel; and testing parameters according to the signals received during the four time periods. | 02-26-2009 |
20090052679 | Apparatus for fault detection for parallelly transmitted audio signals and apparatus for delay difference detection and adjustment for parallelly transmitted audio signals - Characteristic amounts in each small region of audio signals transmitted in the working system and the standby system are extracted by characteristic amount calculators | 02-26-2009 |
20090060212 | MULTI-CHANNEL SWITCH AND TESTING APPARATUS USING THE SAME - A multi-channel switch for connecting between an electronic apparatus and a testing apparatus comprising: a multi-channel interface for connecting with the electronic apparatus, comprising a plurality of channels; a single-channel interface for connecting with the testing apparatus, comprising one channel; an audio sensor for receiving a sound input, and generating audio signals accordingly; and a controller for receiving the audio signals and establishing a through connection between one of the multi-channel interface and the single channel interface according to the audio signals. | 03-05-2009 |
20090074195 | DISTRIBUTED INTELLIGIBILITY TESTING SYSTEM - A distributed intelligibility testing system provides standardized audio tests to a plurality of remotely located client systems. The testing system includes a test manager that records a plurality of audio test words and generates a test protocol corresponding to the audio test words. A database receives and stores the audio test words and the test protocol. The audio test words are stored as a plurality of audio test files. Respective client systems in communication with the database receive and play the audio test files in accordance with the test protocol. The client systems record test responses when the audio test files are played. The test responses are stored in a database, and then evaluated. | 03-19-2009 |
20090074196 | Apparatus and method for monitoring own voice during singing or speaking event - A headset includes a housing having an inner side thereof engageable at least with a human ear and a curved member for attaching the housing behind the ear. An audible sound emitting speaker is mounted within the housing and a microphone capable of receiving sound wave and for converting the sound wave into an electrical signal is connected to one end of a boom. The other end of the boom is attached to the housing. An amplifier is disposed within the housing and is operatively connected to the speaker and the microphone for amplifying the electrical signal. A manually operable variable volume control resistive switch is operatively disposed between the amplifier and the microphone for controlling amplification of the electrical signal. A battery is contained within the housing and supplies a predetermined voltage to the amplifier and microphone. A manually operable switch controls voltage supply from the battery. | 03-19-2009 |
20090080668 | Apparatus and method for testing sound input and output of sound card - An apparatus and a method for testing a sound card are applicable for detecting whether a sound leakage problem occurs to a sounding interface of the sound card. The testing apparatus includes a switching circuit and a switching unit. The switching circuit is electrically connected to the sounding interface and a sound-receiving interface of the sound card respectively, and has a plurality of transfer paths. The switching circuit is used to receive a first and a second sound channel, and to connect the first and the second sound channel to corresponding transfer paths, so as to transmit the audio signal back to the sound-receiving interface. The switching unit is electrically connected to the sounding interface and the switching circuit, for receiving the first and the second sound channel. The switching unit alters the transfer paths in the switching circuit according to a first and/or a second switching audio signal. | 03-26-2009 |
20090086985 | Apparatus and method for testing audio jacks of sound card - An apparatus and a method for testing audio jacks of a sound card are applicable for detecting whether at least one audio jack of the sound card in a personal computer (PC) sounds normally. Each audio jack provides at least one sound channel for transmitting a sound signal. The testing system includes driving circuits and a plurality of light-emitting units. The driving circuits are electrically connected to the sound card and an external voltage source, and used to change a current transmitting path according to the received sound signal. The light-emitting units are electrically connected to the driving circuits, and receive the current generated from the driving circuit, such that the light-emitting units emit lights. A sound channel to be tested is selected first, and a sound signal is sent to the sound channel. After the testing apparatus receives the sound signal, the light-emitting units emit lights. | 04-02-2009 |
20090103740 | AUDIO SIGNAL PROCESSING DEVICE AND AUDIO SIGNAL PROCESSING METHOD FOR SPECIFYING SOUND GENERATING PERIOD - Even in a state that the change of an environmental noise cannot be anticipated, a sound generating period in an audio signal can be specified with high accuracy. Sound in an audio space in which an audio signal processing system | 04-23-2009 |
20090110205 | Portable Sound System Testing Apparatus - A portable sound system testing apparatus at least includes: an AC power module adapted to provide connected AC power to the apparatus; a power switch module adapted to switch power to the apparatus ON and OFF; an AC-to-DC conversion module adapted to convert AC power received into DC power suitable for powering a sound system to be tested; a power and ground module coupled to the AC to DC conversion module, and at least including a power out terminal for outputting DC power to the sound system to be tested, and a ground terminal for connecting the sound system to be tested to ground; a testing antenna; an antenna lead module coupled to the testing antenna and adapted to be coupled to the antenna of the sound system to be tested; a speaker terminal module at least including speaker terminals adapted to be connected to loudspeaker connectors of the sound system to be tested; a sound reproduction module coupled to the speaker terminal module, adapted to reproduce audio signals received from the sound system to be tested; and a control module coupled to the power and ground module, coupled to the speaker terminal module, and coupled to the sound reproduction module, the control module adapted to control the operation of the apparatus. | 04-30-2009 |
20090110206 | METHOD AND APPARATUS FOR SENSING A SIGNAL ABSENCE OF AUDIO AND AUTOMATICALLY ENTERING LOW POWER MODE - An electronic device having a unique audio sensing method that senses the event of no audio for a predetermined period of time. The sensed information is used by a microprocessor to bring the device into a low-power mode. The same method may be used to bring a device into active mode from a low-power mode. | 04-30-2009 |
20090116655 | Adaptive filter calculation method and sound field generating device - For an inverse system including an adaptive filter having an inverse characteristic of a reproduction sound field characteristic and arranged in series with a stage previous to an output stage of the reproduction sound field characteristic, and an auxiliary filter for updating the adaptive filter arranged in parallel with an output stage of an arbitrary sound field characteristic, the auxiliary filter is identified based on the arbitrary sound field characteristic as a target using the adaptive filter with an initial value set therein or the adaptive filter having been updated. The adaptive filter is updated using the auxiliary filter thus identified. When update of the adaptive filter satisfied a predetermined end condition, the adaptive filter thus updated is superposed on the reproduction sound field characteristic. | 05-07-2009 |
20090122997 | Audio processing apparatus and program - In an audio processing apparatus, a signal processor controls a volume of a sound signal provided to a sound emitting device. An adaptive filter determines an adaptive signal so as to minimize a magnitude of an error signal. A subtracter generates the error signal represented by a difference between the adaptive signal and an observation signal generated by a sound receiving device. A magnitude ratio calculator calculates a magnitude ratio of the observation signal relative to the error signal or magnitude ratio of the adaptive signal relative to the error signal for each frame that is sequentially segmented from the error signal along a time axis. A controller variably controls a gain of the volume of the sound signal according to the magnitude of the error signal when the magnitude ratio is less than a reference value, and controls the gain of the volume of the sound signal so as to suppress an increase of the gain according to the magnitude of the error signal when the magnitude ratio is higher than the reference value. | 05-14-2009 |
20090129604 | SOUND FIELD CONTROL METHOD AND SYSTEM - Characteristics of spatial transmission from a speaker to a microphone contained in a remote controller and set in a listening area and in a non-listening area are measured. A plurality of different types of sound field control effects is calculated on the basis of the spatial transmission characteristics to predict the plurality of types of sound field control effects. The plurality of types of sound field control effects is displayed and presented to a user. The speaker is driven by using a control sound source corresponding to one sound field control effect selected from the plurality of types of sound field control effects by the user operating the remote controller to perform effective sound field control in the listening area and in the non-listening area. | 05-21-2009 |
20090141904 | Devices for Displaying Modal Patterns - The present invention provides an acoustic display device for displaying modal patterns in response to sound from a sound source. The display device | 06-04-2009 |
20090147962 | CONSUMER ELECTRONICS DEVICE WITH HEADPHONES - A system having a consumer electronics device ( | 06-11-2009 |
20090169024 | Data capture bridge - A method and apparatus are provided for gathering research data indicating exposure to audio content to a user of an audio source device and an audio receiver device. The audio source device wirelessly transmits an audio signal containing the audio content. The audio receiver device receives an audio signal containing the audio content. The audio receiver device includes a speaker to output the audio content to be heard by the user. The apparatus includes a bridge device for wirelessly bridging the audio signal from the audio source device to the audio receiver device. The bridge device includes a speaker for outputting the audio content from the audio signal. The apparatus also includes a monitoring device acoustically coupled to the bridge device for monitoring the audio content output by the speaker of the bridge device, and generating research data identifying the audio content. | 07-02-2009 |
20090175460 | ARTIFICIAL MOUTH WITH ACOUSTIC TUBE OUTPUTTING PLANE WAVES - An artificial mouth includes a front cover, a loudspeaker, and an acoustic tube. The front cover has a plurality of holes which is coplanar. The loudspeaker generates sound waves which pass through the acoustic tube, and turn into plane waves when arriving at the plurality of holes of the front cover. | 07-09-2009 |
20090180628 | System and method for conditioning a signal received at a MEMS based acquisition device - A system and method for monitoring for a specified frequency band is disclosed. The technology initially utilizes a micro-electromechanical system (“MEMS”) based acquisition device to monitor an environment. The MEMS device receives a signal from the environment, and generates an input signal comprising an electronic representation of the received environmental signal. This input signal is then conditioned for at least one frequency band. Embodiments of the invention next allow the conditioned signal to be compared to various pre-defined events in order to determine the signal's origin. | 07-16-2009 |
20090180629 | METHODS OF CALIBRATING TONE-BASED COMMUNICATIONS SYSTEMS - Electronic devices and accessories such as headsets for electronic devices are provided. A microphone may be included in an accessory to capture sound for an associated electronic device. Buttons and other user interfaces may be included in the accessories. An accessory may have an audio plug that connects to a mating audio jack in an electronic device, thereby establishing a wired communications link between the accessory and the electronic device. The electronic device may include power supply circuitry for applying bias voltages to the accessory. The bias voltages may bias a microphone and may adjust settings in the accessory such as settings related to operating modes. User input information may be conveyed between the accessory and the electronic device using ultrasonic tone transmission. The electronic device may also gather input from the accessory using a voltage detector coupled to lines in the communications path. | 07-16-2009 |
20090180630 | ELECTRONIC DEVICE CIRCUITRY FOR COMMUNICATING WITH ACCESSORIES - Electronic devices and accessories such as headsets for electronic devices are provided. A microphone may be included in an accessory to capture sound for an associated electronic device. Buttons and other user interfaces may be included in the accessories. An accessory may have an audio plug that connects to a mating audio jack in an electronic device, thereby establishing a wired communications link between the accessory and the electronic device. The electronic device may include power supply circuitry for applying bias voltages to the accessory. The bias voltages may bias a microphone and may adjust settings in the accessory such as settings related to operating modes. User input information may be conveyed between the accessory and the electronic device using ultrasonic tone transmission. The electronic device may also gather input from the accessory using a voltage detector coupled to lines in the communications path. | 07-16-2009 |
20090180631 | PERSONAL SOUND SYSTEM FOR DISPLAY OF SOUND PRESSURE LEVEL OR OTHER ENVIRONMENTAL CONDITION - A cell phone providing a display of sound pressure level or other environmental condition is described. An ear-level module, which includes a microphone or other sensor, and processing resources for analyzing the input from the microphone to provide a measure of an environmental condition, such as sound pressure level, at the ear, and deliver it to a cell phone or other hand held device for display in a manner readable by the user. The companion cell phone provides a display and supporting processing resources, presenting a graphical meter view. Alternatively, the audio data or other measurement is produced using a microphone on the cell phone. | 07-16-2009 |
20090190768 | SOUND CHANNEL DETECTION CIRCUIT - A sound channel detection circuit includes a amplifier circuit and a LED. The amplifier circuit has an input connected to a connector for receiving an AC voltage signal and an output. The LED has an anode connected to the output of the amplifier circuit and a cathode connected to ground, when a sound channel circuit to be tested works normally, the AC voltage is amplified by the amplifier circuit and drives the LED to flash, when the sound channel circuit to be tested is not working, the LED doesn't emit light. The sound channel detection circuit with the amplifier circuit and the LED can improve the accuracy and efficiency of detection in a situation of a batch production in a noisy environment. | 07-30-2009 |
20090220097 | SOUND TESTING DEVICE FOR MOBILE PHONE AND METHOD FOR USING THE SAME - A sound testing device ( | 09-03-2009 |
20090238370 | SYSTEM, DEVICES AND METHODS FOR PREDICTING THE PERCEIVED SPATIAL QUALITY OF SOUND PROCESSING AND REPRODUCING EQUIPMENT - The present invention relates to a method and corresponding system for predicting the perceived spatial quality of sound processing and reproducing equipment. According to the invention a device to be tested, a so-called device under test (DUT), is subjected to one or more test signals and the response of the device under test is provided to one or more means for deriving metrics, i.e. a higher-level representation of the raw data obtained from the device under test. The derived one or more metrics is/are provided to suitable predictor means that “translates” the objective measure provided by the one or more metrics to a predicted perceived spatial quality. To this end said predictor means is calibrated using listening tests carried out on real listeners. By means of the invention there is thus provided an “instrument” that can replace expensive and time consuming listening tests for instance during development of various audio processing or reproduction systems or methods. | 09-24-2009 |
20090238371 | SYSTEM, DEVICES AND METHODS FOR PREDICTING THE PERCEIVED SPATIAL QUALITY OF SOUND PROCESSING AND REPRODUCING EQUIPMENT - The present invention relates to a method and corresponding system for predicting the perceived spatial quality of sound processing and reproducing equipment. According to the invention a device to be tested, a so-called device under test (DUT), is subjected to one or more test signals and the response of the device under test is provided to one or more means for deriving metrics, i.e. a higher-level representation of the raw data obtained from the device under test. The derived one or more metrics is/are provided to suitable predictor means that “translates” the objective measure provided by the one or more metrics to a predicted perceived spatial quality. To this end said predictor means is calibrated using listening tests carried out on real listeners. By means of the invention there is thus provided an “instrument” that can replace expensive and time consuming listening tests for instance during development of various audio processing or reproduction systems or methods. | 09-24-2009 |
20090252342 | Method and apparatus to measure differential phase and frequency modulation distortions for audio equipment - A testing method or apparatus utilizes multiple frequencies applied to a device under test for measuring newly discovered frequency modulation effects. An embodiment may include a lower frequency signal with a smaller amplitude higher frequency signal to test a dynamic change in frequency response, gain, and or phase. This dynamic test can reveal frequency modulation effects. Another embodiment may include the use of a multiple frequency signal to dynamically induce a time varying phase or frequency distortion for the device that has differential phase distortion. The device's output is then measured with an FM detector to measure a shift in one of the frequencies used in the test signal or to measure frequency modulation effects of any signals, including distortion products, from the device. Yet another embodiment of the invention may include biasing a device with a voltage to span the output voltage range of the device while measuring harmonic or intermodulation distortion or phase or frequency response at the various operating points. | 10-08-2009 |
20090257600 | SYSTEM AND METHOD OF AUDIO TESTING OF ACOUSTIC DEVICES - A system and method of testing the audio performance of an acoustic device is provided. To test a device microphone, an audio signal is generated, provided to an external speaker, outputted to the device microphone, and routed to an auxiliary input/output device where it is outputted and analyzed. To test a device speaker, an audio signal is generated, inputted to an auxiliary input/output device, routed to the device speaker, outputted to an external microphone, and outputted to an audio analyzer. | 10-15-2009 |
20090274311 | Multi-Channel Audio Load Box With Selectable Loading - An audio load box to test multiple audio channels using selectable loading for each channel. A resistive load is switched into the signal path of each audio channel before audio tests are conducted. The resistive load can be a single resistor or resistors in parallel. The multi-channel audio load box with selectable loading can provide greater flexibility, reliability and accuracy for tests, for example inter-channel phase measurements and crosstalk. | 11-05-2009 |
20090274312 | Detecting a Loudspeaker Configuration - A detecting circuit measures at least one response characteristic of an output channel in an electro-acoustic transducer system. A memory stores a plurality of equalizations, each equalization corresponding to a known electro-acoustic transducer system associated with at least one response characteristic stored in the memory. A processor in communication with the detecting circuit and the memory selects one of the stored response characteristics matching the response characteristic measured by the detecting circuit. In some cases, an appropriate equalization is loaded based on the selected response characteristic. | 11-05-2009 |
20090279707 | Listener Specific Audio Reproduction System - A system for use with an audio reproduction system that corrects for distortion caused by the system as well as any hearing impairment suffered a listener. Test signals are introduced into the input of the system to produce test sounds that are perceptible by the listener. Using a pushbutton, the listener indicates when a test signal of progressively increasing volume reaches an audible level. The resulting measured values of the listener's threshold of hearing at different frequencies is compared with comparable data for a normal listener to generate correction values that are used to program an equalizer which compensates for not only the listener's hearing impairments but also any distortion produced by system components or room acoustics. | 11-12-2009 |
20090285405 | METHOD FOR MANUFACTURING ARRAY MICROPHONES AND SYSTEM FOR CATEGORIZING MICROPHONES - The invention provides a method for manufacturing array microphones. First, signal delays of a plurality of microphones are measured. The microphones are then categorized into a plurality of categories according to the signal delays. A plurality of array microphones are then assembled with a number of component microphones selected from the same categories. | 11-19-2009 |
20090296946 | DEFECT DETECTION METHOD FOR AN AUDIO DEVICE UTILIZING A MICROPHONE ARRAY - An audio device is provided, employing a defect detection method to detect defectiveness within a microphone array. The microphone array comprising a first microphone and a second microphone, respectively, generates a first audio signal and a second audio signal from ambient audio signals. An error detector is provided to detect functions of the first and second microphones based on the first and second audio signals to generate a status signal. A digital signal processor (DSP) processes the first and second audio signals based on the status signal. If the status signal indicates that only the first microphone or the second microphone is defective, the DSP switches to a single microphone mode in which only the remaining normal microphone is enabled. If the status signal indicates that both the first and second microphones are defective, the DSP generates an error indication signal and stops processing the first and second audio signals. | 12-03-2009 |
20090304192 | METHOD AND SYSTEM FOR PHASE DIFFERENCE MEASUREMENT FOR MICROPHONES - The invention provides a system for phase difference measurement. In one embodiment, the system comprises a speaker, a high-speed digital input/output (HSDIO) device, and a testing computer. The speaker plays a test voice, wherein a reference microphone converts the test voice to a reference signal, and a plurality of test microphones convert the test voice to a plurality of tested signals. The HSDIO device receives the reference signal and the tested signals, and generates a multi-bit datastream according to the reference signal and the tested signals, wherein each word of the multi-bit datastream comprises a bit of the reference signal and a plurality of bits of the tested signals. The testing computer retrieves the reference signal and the tested signals from the multi-bit datastream, and measures phase differences between the tested signals and the reference signal. | 12-10-2009 |
20090310793 | AUDIO SIGNAL PROCESSING DEVICE AND AUDIO SIGNAL PROCESSING METHOD - An audio signal processing device includes: a microphone configured to collect noise; an analyzing unit configured to analyze an audio signal collected by the microphone to detect the level and frequency property of the collected audio signal; and a signal processing unit configured to subject an audio signal to be reproduced to signal processing based on the analysis results of the analyzing unit. | 12-17-2009 |
20090316917 | 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. | 12-24-2009 |
20090316918 | Electronic Device Speech Enhancement - Disclosed herein is an apparatus. The apparatus includes a first audio input device, a second audio input device, an analog to digital converter, a voice activity detector, and a position detector. The first audio input device is configured to receive a first audio signal. The second audio input device is configured to receive a second audio signal. The analog to digital converter is connected to the first and the second audio input devices. The voice activity detector is connected to the analog to digital converter. The voice activity detector is configured to receive input from the first and the second audio input devices. The position detector is connected to the voice activity detector. The position detector is configured to determine a position of the apparatus and classify the audio signals based on, at least partially, a ratio of the first audio signal and the second audio signal. | 12-24-2009 |
20090316919 | ACOUSTIC CHARACTERISTIC CORRECTION METHOD AND APPARATUS - According to one embodiment, an acoustic characteristic correction apparatus comprises a main module reproducing an audio signal and a remote controller includes a microphone, wherein the main module comprises a generation module generating a measurement signal, a receiver receiving a picked-up signal output from the microphone receiving the measurement signal, a detector module detecting acoustic characteristics based on the picked-up signal, a processor module obtaining correction characteristics based on the acoustic characteristics, and a correction module correcting the audio signal based on the correction characteristics. | 12-24-2009 |
20090323973 | SELECTING AN AUDIO DEVICE FOR USE - Selecting for use an audio input device such as a microphone based on the quality of sound sampled from multiple available input devices. The sample is analyzed to determine a background sound level and a peak deviation level above the background. That device having the greatest deviation above the background is selected and all other input devices deactivated. The selection process may also require that the peak value meet or exceed some threshold value in order to be considered. The sampling may occur starting with system activation or may occur prior to activation with selection occurring after system activation. | 12-31-2009 |
20100034396 | METHOD AND APPARATUS FOR MANAGING PRESENTATION OF MEDIA CONTENT - A system that incorporates teachings of the present disclosure may include, for example, a set top box having a controller to receive a request for reverberation in an environment having a plurality of media devices, and adjust a time delay for audio signals presented by one of the plurality of media devices operably coupled to the set top box based at least in part on the request. Other embodiments are disclosed. | 02-11-2010 |
20100034397 | SOUND SOURCE TRACKING SYSTEM, METHOD AND ROBOT - A result of a sound source direction measurement based on an output of an REMA (first microphone array) ( | 02-11-2010 |
20100046765 | SYSTEM FOR PROCESSING AUDIO DATA | 02-25-2010 |
20100054487 | SOUND INSULATING DEVICE - A sound insulating device used to carry out audio testing of a mobile phone is provided. The sound insulating device includes a sound speaker, a sound receiver, a clamping platform clamping the mobile phone thereon and a sound insulating chamber. The sound insulating chamber receives the sound speaker and the sound receiver and the clamping platform therein. The sound insulating chamber is enclosed by several sound insulating boards. Each sound insulating board includes a sound absorbing layer, a cushion layer and an aluminium-alloy layer combined together. The cushion layer is sandwiched between the absorbing layer and the aluminium-alloy layer. | 03-04-2010 |
20100067710 | NOISE SPECTRUM TRACKING IN NOISY ACOUSTICAL SIGNALS - The invention relates to a method of estimating noise power spectral density PSD in an input sound signal comprising a noise signal part and a target signal part. The invention further relates to a system to its use. The object of the present invention is to provide a scheme for estimating the noise PSD in an acoustic signal consisting of a target signal contaminated by acoustic noise. The problem is solved by a method comprising the steps of d) providing a digitized electrical input signal to a control path and performing; d1) storing a number of time frames of the input signal each comprising a predefined number N2 of digital time samples x | 03-18-2010 |
20100074451 | ACOUSTIC SEALING ANALYSIS SYSTEM - A test signal emitted by an earpiece is compared against the acoustic signal to determine if a sealing section of the earpiece is sealed properly. The degree of acoustic sealing is used to adjust the attenuation level of a sealing section of the earpiece or alert the user that the sealing section of the seal status. | 03-25-2010 |
20100086142 | DEVICE AND METHOD FOR AUTOMATICALLY TESTING AUDIO PLAYER DEVICE - A method for testing an audio player device is provided. The method includes: transcribing sound signals of each of the audio files which are supposed to be supported by the audio player device as a sound file; determining the ID code of each of the sound files; and determining whether the ID code of each of the sound files has been listed on a predetermined audio format table by comparing the ID code of each of the sound files with the ID codes listed on the audio format table, thus to determine which of audio formats listed on the audio format table is supported by the audio player device according to the relationships of the ID codes and the audio formats recorded by the audio format table. A test device applying the method to testing audio player devices is also provided. | 04-08-2010 |
20100092000 | APPARATUS AND METHOD FOR NOISE ESTIMATION, AND NOISE REDUCTION APPARATUS EMPLOYING THE SAME - Provided are an apparatus and method for estimating noise and a noise reduction apparatus employing the same. The noise estimation apparatus estimates noise by blocking audio signals from a direction of a target sound source from received audio signals, and compensating for distortions from directivity gains of a target sound blocker blocking the audio signals from the target sound source. | 04-15-2010 |
20100111314 | APPARATUS AND METHOD FOR LOCALIZING SOUND SOURCE IN REAL TIME - The present invention relates to an apparatus and method for localizing a sound source in real time. The apparatus for localizing a sound source in real time includes a sound signal acquisition unit for acquiring sound signals through two or more channels. A sample delay storage unit stores a plurality of pieces of data, sampled from the sound signals acquired through respective channels, for a predetermined period of time. A correlation calculation unit calculates correlations between the channels from the plurality of pieces of sampled data stored in the sample delay storage unit. A sound source direction calculation unit calculates an azimuth angle of the sound source using both the correlations between the channels and location relationships of the sound signal acquisition unit. Accordingly, the present invention can localize a sound source in real time. | 05-06-2010 |
20100135501 | CALIBRATING AT LEAST ONE SYSTEM MICROPHONE - A system including at least one system microphone, a processor connected to computer readable memory and the at least one system microphone, a measurement microphone connected to the processor, at least one audio speaker, a signal generator connected to the processor and configured to produce signals from the at least one audio speaker for both the measurement microphone and the at least one system microphone to measure the response of the at least one audio speaker, and a device manager application executable from the computer readable memory and configured to perform the steps of calibrating the at least one audio speaker with the measurement microphone using the signals of the signal generator based on the response of the at least one audio speaker thereby creating at least one calibrated audio speaker and calibrating the at least one system microphone with the at least one calibrated audio speaker using the signals of the signal generator. | 06-03-2010 |
20100135502 | SPL Dose Data Logger System - A method for using an earpiece ( | 06-03-2010 |
20100142717 | AUDIOMETER WITH INTERCHANGEABLE TRANSDUCER - An audiometer including a processor controlled test signal generator is adjustable so as to produce a uniform output signal when coupled with a transducer load. Each transducer set to be used with the test signal generator includes recordable indicia in written or electronic form, upon which correction values for adjusting the electronic signal output of the audiometer module to produce a desired sound output from the each transducer in the transducer set. When the transducer set is connected to the audiometer module, the correction values are either retrieved automatically from the electronic indicia, which may be an EEPROM, or are input to the processor manually by a user through an interface such as a keyboard. These correction values are then used by the processor to dynamically adjust the output of the audiometer to correct for sound output response deviation of each transducer in the transducer set. | 06-10-2010 |
20100150358 | PERSONAL COMPUTER BASED AUDIO FREQUENCY IMPEDANCE ANALYZER - An apparatus, method, and system for analyzing the response of a device under test using a signal generated by an audio card comprises a housing. The apparatus comprises a first connector coupled to the housing and configured to couple electrically with an output of the audio card and to receive a first signal from the audio card. The apparatus also comprises a second connector being electrically coupled with the first connector and configured to interface with the device under test in order to transmit the first signal to a device under test. The apparatus also comprises a third connector configured to receive a second signal from the device under test. The apparatus also comprises a fourth connector being electrically coupled with the third connector and configured to transmit the second signal to an input of the audio card. | 06-17-2010 |
20100150359 | 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. | 06-17-2010 |
20100150360 | AUDIO SOURCE LOCALIZATION SYSTEM AND METHOD - Systems and methods are described that perform audio source localization in a manner that provides increased robustness and responsiveness in the presence of acoustic echo. The systems and methods calculate a difference between a signal level associated with one or more of the audio signals generated by a microphone array and an estimated level of acoustic echo associated with one or more of the audio signals. This information is then used to determine whether and/or how to perform audio source localization. For example, a controller may use the difference to determine whether or not to freeze an audio source localization module that operates on the audio signals. As another example, the audio source localization module may incorporate the difference (or the estimated level of acoustic echo used to calculate the difference) into the logic that is used to determine the location of a desired audio source. | 06-17-2010 |
20100166197 | SOUND CORRECTOR, SOUND MEASUREMENT DEVICE, SOUND REPRODUCER, SOUND CORRECTION METHOD, AND SOUND MEASUREMENT METHOD - According to one embodiment, a sound corrector includes a signal outputter, a response signal, a frequency specifier, a coefficient specifier, a filter, and an outputter. The signal outputter outputs a measurement signal to measure acoustical properties of an object to be measured. The response signal receiver receives a response signal from the object in response to the measurement signal. The frequency specifier specifies a resonant frequency at a resonance peak from the response signal. The coefficient specifier specifies a correction coefficient of a correction filter for reducing the resonant frequency based on the specified resonant frequency. The filter performs filtering on a signal to be output to the object using the correction filter with the correction coefficient. The outputter outputs the signal having undergone the filtering to the object. | 07-01-2010 |
20100183160 | VIBRATION SENSOR ASSEMBLY WITH AMBIENT NOISE DETECTION - A sensor assembly for detecting vibrational energy on a target surface, including at least one target vibration transducer configured to measure vibrational energy associated with at least one target surface; and at least one environmental vibration transducer, each environmental vibration transducer being configured to measure vibrational energy in the immediate vicinity of the environmental vibration transducer wherein the environmental vibration transducer is vibrationally isolated from the target vibration transducer. | 07-22-2010 |
20100189272 | PORTABLE TERMINAL AND SOUND DETECTOR, WHICH BOTH COMMUNICATE USING BODY AREA NETWORK, AND DATA CONTROLLING METHOD THEREFOR - A sound detector communicates with a portable terminal by manipulation of the portable terminal by a user and may reproduce data communicated between the sound detector and the portable terminal. | 07-29-2010 |
20100189273 | METHOD AND APPARATUS FOR REMOTE CONTROL OF AN AUDIO SOURCE SUCH AS A WIRELESS MICROPHONE SYSTEM - A method and apparatus is provided for remotely controlling a set of functions for a wireless audio system from a remote control. The method includes the steps of generating a digitally modulated pilot tone, and transmitting this pilot tone within a radio communication to a wireless receiver. The digitally modulated pilot tone carries data about a plurality of functions related to an audio source and its associated transmitter. The method further includes a step of receiving the data at a wireless receiver, augmenting it by information related to the wireless receiver, and communicating the resulting data via a communication network to a remote central control. The method further includes monitoring the resulting data at the remote central control, diagnosing detected problems associated with the wireless audio system, and communicating to the wireless audio system appropriate remedial action to alleviate the detected problems. | 07-29-2010 |
20100202623 | LIGHTWEIGHT AUDIO SYSTEM FOR AUTOMOTIVE APPLICATIONS AND METHOD - A lightweight radio/CD player for vehicular application is virtually “fastenerless” and includes a case and frontal interface formed of polymer based material that is molded to provide details to accept audio devices such as playback mechanisms (if desired) and radio receivers, as well as the circuit boards required for electrical control and display. The case and frontal interface are of composite structure, including an insert molded electrically conductive wire mesh screen that has been pre-formed to contour with the molding operation. The wire mesh provides EMC, RFI, BCI and ESD shielding and grounding of the circuit boards via exposed wire mesh pads and adjacent ground clips. The PCB architecture is bifurcated into a first board carrying common circuit components in a surface mount configuration suitable for high volume production, and a second board carrying application specific circuit components in a wave soldered stick mount configuration. The major components and subassemblies are self-fixturing during the final assembly process, eliminating the need for dedicated tools, fixtures and assembly equipment. The major components and subassemblies self-interconnect by integral guide and connection features effecting “slide lock” and “snap lock” self-interconnection. The radio architecture includes improved push buttons employing 4-bar living hinge linkage and front loaded decorative trim buttons. | 08-12-2010 |
20100208903 | AUDIO MODULE FOR THE ACOUSTIC MONITORING OF A SURVEILLANCE REGION, SURVEILLANCE SYSTEM FOR THE SURVEILLANCE REGION, METHOD FOR GENERATING A SOUND ENVIRONMENT, AND COMPUTER PROGRAM - The invention relates to an audio module | 08-19-2010 |
20100208904 | DEREVERBERATION APPARATUS AND DEREVERBERATION METHOD - A dereverberation apparatus includes a signal selecting unit which selects a sound signal to be used for dereverberation process from a plurality of sound signals, and a dereverberation processing unit which performs the dereverberation process for the selected sound signal. | 08-19-2010 |
20100215183 | AUDIO JACK FOR A PORTABLE ELECTRONIC DEVICE - A portable electronic device includes a processor provided in a housing, a jack being sized for receiving a plug of an audio accessory and having electrical connectors for enabling communication between the audio accessory and the processor, the electrical connectors for contacting corresponding electrical connectors of the plug and a switching circuit in communication with the processor and the electrical connectors, the switching circuit for determining a pin-out of the plug and routing audio signals between ungrounded ones of the corresponding electrical connectors of the plug and the processor. | 08-26-2010 |
20100226501 | BACKGROUND NOISE ESTIMATION - In a system for estimating the power spectral density of acoustical background noise when the level of a smoothed power spectral density signal increases, an increment value is increased, starting from a minimum increment value, by a predetermined amount until a maximum increment value is reached if at the same time the value of the power spectral density currently determined in a new calculation cycle is larger than the estimate value of the power spectral density of the background noise determined in the previous calculation cycle. For cases in which the level of the smoothed power spectral density decreases, the amplitude of the decrement value is increased, starting from a minimum decrement value, by a predetermined amount until a maximum decrement value is reached if at the same time the value of the power spectral density currently determined in a new calculation cycle is smaller than the estimate value of the power spectral density of the background noise determined in the previous calculation cycle. | 09-09-2010 |
20100246836 | Personal Acoustic Device Position Determination - Apparatus and method for determining an operating state of an earpiece of a personal acoustic device and/or the entirety of the personal acoustic device through tests to determine the current operating state, wherein the tests differ depending on a current power mode of the personal acoustic device, and wherein at least one lower power test is employed during at least one lower power mode. | 09-30-2010 |
20100246837 | Systems and Methods for Tuning Automatic Speech Recognition Systems - A tuning system for tuning a speech recognition system includes a transmitter for sending a user response to a speech recognition system. The user response is based at least in part on a test stimulus that may be generated by the control system. A receiver receives a recognized response from the speech recognition system; this recognized response is based at least in part on the associated user response. An adjustment module adjusts at least one parameter of the speech recognition system based at least in part on at least one of the test stimulus, the associated user response, and the recognized response. | 09-30-2010 |
20100260343 | System for estimating sound pressure levels at the tympanic membrane using pressure-minima based distance - In various embodiments, a system is used to provide an apparatus configured to measure sound in an ear canal of a wearer's ear at a distance from a tympanic membrane of the ear. The sound is measured and received by the apparatus to produce a signal. A frequency analysis is performed on the signal to determine output as a function of the frequency and to determine the frequency of the minima (null). Further, a distance equal to a quarter wavelength of the null frequency is calculated. A correction factor associated with the quarter wavelength is retrieved and applied to the output to generate a corrected output. An estimated sound pressure level at the tympanic membrane from the corrected output is produced. | 10-14-2010 |
20100278348 | Intercom Headset Connection and Disconnection Responses - A headset is able to be coupled via a cable to an intercom system, is able to be wirelessly coupled to a wireless device via a wireless transceiver of the headset, and is able to be connected to a wired device via another cable. A controller of the headset separately monitors the microphone conductors and audio conductors by which the headset may be coupled to the intercom system to detect whether or not one or both of a communications microphone and an acoustic driver of the headset are coupled to the intercom system, and monitors the operating state of the wireless transceiver to detect whether or not the wireless transceiver is inactive, on standby or in use; and selectively couples a system ground conductor to one of the microphone conductors, selectively provides a local sidetone, and/or selectively provides a local microphone bias voltage in response to what is observed through such monitoring. | 11-04-2010 |
20100278349 | Intercom Headset Connection and Disconnection Detection - A headset is able to be coupled via a cable to an intercom system, is able to be wirelessly coupled to a wireless device via a wireless transceiver of the headset, and is able to be connected to a wired device via another cable. A controller of the headset separately monitors the microphone conductors and audio conductors by which the headset may be coupled to the intercom system to detect whether or not one or both of a communications microphone and an acoustic driver of the headset are coupled to the intercom system, and monitors the operating state of the wireless transceiver to detect whether or not the wireless transceiver is inactive, on standby or in use; and selectively couples a system ground conductor to one of the microphone conductors, selectively provides a local sidetone, and/or selectively provides a local microphone bias voltage in response to what is observed through such monitoring. | 11-04-2010 |
20100284545 | Direct vocal and instrument monitor - The present invention relates to direct voice and instrument monitoring systems and methods of use thereof. | 11-11-2010 |
20100290634 | METHOD AND DEVICE FOR TESTING AND CALIBRATING ELECTRONIC SEMICONDUCTOR COMPONENTS WHICH CONVERT SOUND INTO ELECTRICAL SIGNALS - A method for testing and calibrating electronic semiconductor components which convert sound into electrical signals acoustically irradiates the components in a sound chamber whose largest free length is less than half the wavelength of the highest frequency of the sound waves produced during the test. | 11-18-2010 |
20100303249 | SYSTEM AND METHOD OF IMPROVING AUDIO SIGNALS FOR THE HEARING IMPAIRED - A system and method for using an audiogram and audio filters to provide improved audio characteristics for hearing impaired listeners by equalizing the received sound level of the signal across the frequency spectrum. The system and method further provide for modifying an audio signal based on the personal hearing characteristics of a listener to compensate for hearing loss. | 12-02-2010 |
20100310082 | INPUT SELECTION FOR AUDITORY DEVICES - A method and auditory device for automatic evaluation of an input signal for use in an auditory device, the method including the steps of: detecting a signal; processing the signal to determine one or more shape parameters relevant to the change of spectral shape over time of said signal, and the signal level; and on the basis of the shape parameter and the signal level, and a predetermined set of rules, evaluating whether said signal is a useful input signal for said device. | 12-09-2010 |
20100322430 | PORTABLE COMMUNICATION DEVICE AND A METHOD OF PROCESSING SIGNALS THEREIN - A portable communication device is disclosed. The portable communication device comprises a speaker adapted to be held to an ear of a user for conveying sound to the user, at least one sensor for sensing sound emanating from said sound conveyed to the user, and a control unit. The control unit is adapted to estimate, based on an electrical input signal supplied to an input port of the speaker and an electrical output signal received from an output port of the at least one sensor, a transfer characteristic from the input port of the speaker to the output port of the sensor. Furthermore, the control unit is adapted to estimate, based on the estimated transfer characteristic, a degree of sound leakage from the user's ear. A corresponding method is also disclosed. | 12-23-2010 |
20110002472 | METHOD AND APPARATUS TO MEASURE DIFFERENTIAL PHASE AND FREQUENCY MODULATION DISTORTIONS FOR AUDIO EQUIPMENT - A testing method or apparatus utilizes multiple frequencies applied to a device under test for measuring newly discovered frequency modulation effects. An embodiment may include a lower frequency signal with a smaller amplitude higher frequency signal to test a dynamic change in frequency response, gain, and or phase. This dynamic test can reveal frequency modulation effects. Another embodiment may include the use of a multiple frequency signal or a modulated signal such as an amplitude modulated to dynamically induce a time varying phase or frequency distortion for the device that has differential phase distortion. In another embodiment, the device's output is then measured with an FM detector, Wow and/or Flutter meter, phase detector, and or spectrum analysis system to measure a shift in one of the frequencies used in the test signal or to measure phase and or frequency modulation effects of any signals such as a distortion product, a carrier signal, and or a distortion product of the carrier signal from the device. | 01-06-2011 |
20110013780 | Adaptive Headset Connection Status Sensing - A controller of a personal audio device, on multiple occasions, monitors a conductor by which it is able to be coupled to another device for the end to an instance of signal activity, and following the end of signal activity, injects a current into the conductor and measures the resulting voltage to calculate an adaptive threshold voltage and to compare the measured voltage to the adaptive threshold to determine at least whether or not the conductor of the personal audio device is coupled to another device. | 01-20-2011 |
20110033056 | NOISE CANCELLATION FOR MICROPHONE-SPEAKER COMBINATIONS USING COMBINED SPEAKER AMPLIFIER AND REFERENCE SENSING - An audio host device has a connector having a speaker contact, a microphone contact, and a reference contact. The reference contact is shared by a microphone and a speaker. The reference contact is also directly coupled to a power return plane of the audio host device. A difference amplifier is provided, having a first cold input, a second cold input, and hot input. The first cold input is coupled to an output of the speaker amplifier, while the second cold input is coupled a sense point for the reference contact. The hot input is coupled to the microphone contact. Other embodiments are also described and claimed. | 02-10-2011 |
20110038487 | EARPHONE ACOUSTIC SIMULATION SYSTEM AND OPTIMAL SIMULATION METHOD OF THE SAME - An earphone acoustic simulation system and an optimal simulation method of the same is disclosed. The earphone acoustic simulation system comprises an earphone front end simulation circuit and an earphone back end simulation circuit for simulating acoustic environment of a front cavity and a back cavity inside an earphone, and an artificial ear simulation circuit is connected respectively with the earphone front end simulation circuit and the earphone back end simulation circuit. Variation of an impedance of the artificial ear simulation circuit represents the frequency response in the earphone cavity. Besides, the optimal simulation of the earphone acoustic simulation system utilizes simulated annealing algorithm to obtain the optimal parameter of the earphone cavity, and anticipates the SPL curve related to the optimal earphone cavity through utilizing the earphone acoustic simulation system. | 02-17-2011 |
20110044460 | METHOD OF COMBINING AT LEAST TWO AUDIO SIGNALS AND A MICROPHONE SYSTEM COMPRISING AT LEAST TWO MICROPHONES - A method of combining at least two audio signals for generating an enhanced system output signal is described. The method comprises the steps of: a) measuring a sound signal at a first spatial position using a first transducer, such as a first microphone, in order to generate a first audio signal comprising a first target signal portion and a first noise signal portion, b) measuring the sound signal at a second spatial position using a second transducer, such as a second microphone, in order to generate a second audio signal comprising a second target signal portion and a second noise signal portion, c) processing the first audio signal in order to phase match and amplitude match the first target signal with the second target signal within a predetermined frequency range and generating a first processed output, d) calculating the difference between the second audio signal and the first processed output in order to generate a subtraction output, e) calculating the sum of the second audio signal and the first processed output in order to generate a summation output, f) processing the subtraction output in order to minimise a contribution from the noise signal portions to the system output signal and generating a second processed output, and g) calculating the difference between the summation output and the second processed output in order to generate the system output signal. | 02-24-2011 |
20110051941 | MICROPHONE DIAGNOSTIC METHOD AND SYSTEM FOR ACCOMPLISHING THE SAME - A microphone diagnostic method and system for accomplishing the same are disclosed herein. The method includes generating an analog tone signal and receiving the analog tone signal at a microphone. Via a processor operatively associated with the microphone, the analog tone signal is converted into a digital tone signal and the digital tone signal is compared to a reference digital tone signal having a predetermined amplitude range and a predetermined frequency range associated therewith. The method further includes generating a diagnostic trouble code signal when the digital tone signal falls outside of the predetermined amplitude range, or determining that the microphone is functioning properly when the digital tone signal falls within the predetermined amplitude range. | 03-03-2011 |
20110064231 | Method and System for Noise Dosimeter with Quick-Check Mode and Earphone Adapter - A noise dosimeter with capability to rapidly predict noise exposure over an extended time period based on a measurement of short duration. Either an acoustic or an electrical earphone adapter provides a convenient means to connect the noise dosimeter to an external sound source. A direct input jack operable to receive at least one audio signal provides a signal to an RMS detector, which provides a DC signal to a two-stage amplifier circuit. The outputs of the amplifiers are provided to a processor having multiple A/D channels. The processor calculates accumulated noise doses and drives a display, which in one embodiment includes a panel of light-emitting diodes. In one embodiment, the dosimeter includes functionality for control of external devices such as sound boards. | 03-17-2011 |
20110069844 | ENTERTAINMENT SYSTEM WITH BANDLESS CONTENT SELECTION - An entertainment system comprising a base unit with a transceiver for interacting, at times, with a control unit via a communications link, and a control unit for controlling the base unit, the control unit being dockable with the base unit to establish direct electrical connection between them, and including a transceiver for interacting with the control unit via said link when undocked. The control unit is a separate aspect of the invention or system. The base unit may contain a tuner, preferably with bandless tuning capability, and may be designed to receive into a universal docking arrangement a digitally controllable auxiliary audio source such as a portable MP3 player or other device. The base unit may further provide alarm clock functionality with numerous features including a “fail-safe' volume control system and fail-safe alarm time setting capability. | 03-24-2011 |
20110096934 | AUDIO MONITORING SYSTEM - An audio monitoring system for an audio performance consists of one or more terminal units and one or more base units. The base units are configured to send transmission data consisting of channel labels, frequencies, and mix identifiers to the terminal units. The terminal units are configured to receive and store the transmission data. The terminal units permit a user to select the stored transmission data and to display the transmission data on a user display. The terminal units can receive audio signals from the base units over the stored frequencies and are configured to output the corresponding audio signals to a sound transmission device. | 04-28-2011 |
20110103599 | AUDIO OUTPUT APPARATUS AND COMPENSATION METHOD THEREOF - An audio output apparatus including a digital operation unit, a digital-to-analog converter (DAC), a left channel unit, a right channel unit and a common unit is provided. During an initial setting, the digital operation unit detects a cross talk voltage on a left channel earphone unit in the left channel unit or a right channel earphone unit in the right channel unit, calculates a first ratio and a second ratio, and then performs an arithmetic operation on a left and a right channel signals according to the first and the second ratios, so as to obtain a compensated left channel signal and a compensated right channel signal respectively for eliminating a cross talk phenomenon. | 05-05-2011 |
20110103600 | TUNER DEVICE - A pitch detection device in which a frequency can be lowered after having maintained both a pitch error accuracy and a response time at practical values to reduce current consumption. Because a number of times of cumulative addition is changed in response to a pitch of a measured signal, a cumulative addition time sum equals or exceeds a constant T_SUM_MIN. Accordingly, a pitch error accuracy of the measured signal achieves a required error accuracy. Furthermore, a frequency of the clock signal is decided using a numerical formula (6) and a numerical formula (7) so that the constant T_SUM_MIN does not exceed a required response time. Accordingly, a response time is within the required response time regardless of whether the frequency of the measured signal is lowered. | 05-05-2011 |
20110103601 | ACOUSTIC MEASUREMENT DEVICE - Provided is an acoustic measurement device capable of reducing the number of microphones while solving a problem of the dependency of interval between microphones on the frequency. The acoustic measurement device comprises a sound reception section ( | 05-05-2011 |
20110116642 | Audio System with Portable Audio Enhancement Device - A portable audio enhancement device is configured for enhancing audio signals, and may be utilized in an audio system. The audio system may include a portable audio source, the audio enhancement device, an audio playback device, and a loudspeaker. The audio enhancement device receives audio signals from the audio source and produces enhanced audio signals. The audio playback device receives the enhanced audio signals and outputs the enhanced audio signals to the loudspeaker for playback. Enhancement of the audio signals may be based on an analysis performed by the audio enhancement device by measuring sample audio signals derived from the sound outputted from the loudspeaker. | 05-19-2011 |
20110116643 | ELECTRONIC DEVICE AND HEADSET WITH SPEAKER SEAL EVALUATION CAPABILITIES - Electronic devices and accessories for electronic devices such as headsets are provided. The electronic devices may produce audio output. The headsets may include earbuds with speakers that play the audio output for a user while the earbuds are located in the user's ears. Circuitry in an electronic device and a headset may be used in evaluating how well the earbuds are sealed to the user's ears. In response to seal quality measurements, informative messages can be generated for the user, overall earbud volume may be increased, balance adjustments may be made to correct for mismatched balance between left and right earbuds, equalization settings may be adjusted, and noise cancellation circuitry settings can be changed. Electrical impedance measurements and acoustic measurements can be used in evaluating seal quality. | 05-19-2011 |
20110123034 | AUDIO TEST DEVICE AND AUDIO TEST METHOD THEREOF - A method for audio test of an audio test device is provided. The audio test device includes audio ports, decoders, a storage unit, and an encoder. Each of the decoders includes an identification corresponding to one of the audio ports. The storage unit stores audio files. The method includes displaying a test interface, which includes a plurality of recording the audio ports and a plurality of recording preset test items being corresponding to the audio files; obtain the IDs of the decoders and the audio files; controlling the encoders to encode the audio files and to embed the corresponding ID, and identifying the IDs of the encoded audio files and transmits the encoded audio files to the corresponding decoders according to the identified IDs. A related audio test device is also provided. | 05-26-2011 |
20110135102 | METHOD, COMPUTER READABLE STORAGE MEDIUM AND SYSTEM FOR LOCALIZING ACOUSTIC SOURCE - A system for localizing an acoustic source is provided. This system includes a microphone apparatus, an audio processing apparatus, a photographing apparatus, and a decision apparatus. The microphone apparatus receives an acoustic signal and generates at least one received audio signal. The audio processing apparatus generates first location information based on the at least one received audio signal. The decision apparatus generates depth information based on at least one image captured by the photographing apparatus. According to the first location information, the at least one captured image, and the depth information, the decision apparatus determines a location corresponding to the source of the acoustic signal. | 06-09-2011 |
20110135103 | System and Method for Audio Adjustment - A system and a method for audio adjustment are provided. The method includes following steps. A first output audio signal generated from the under-test audio playback device according to a frequency response test signal is received. The first output audio signal is analyzed to generate a set of suggested equalization parameter. A set of equalization parameters are adjusted according to the suggested equalization parameters, and a sound test signal is generated from an original sound signal according to the equalization parameters and output to the under-test audio playback device. A second output audio signal is generated from the under-test audio playback device in response to the sound test signal. Whether the auditory effect of the second output audio signal is close to the original sound signal or matches the user's need is determined. The equalization parameters are adjusted when the auditory effect of the second output audio signal is not close to the original sound signal or the user is not satisfied with the auditory effect. | 06-09-2011 |
20110135104 | MODULAR WIRELESS AUDITORY TEST INSTRUMENT WITH INTELLIGENT TRANSDUCERS - A method and apparatus for performing various auditory tests utilizing a hand-held, portable, wireless testing device is provided. Within the device is a diagnostic subsystem used to implement and analyze selected tests. Attached to the device, either directly or via a flexible cable, are one or more probes. A processor, storage means, input means and display means are included, thus allowing the device to process and store instructions as well as process, store and display data. A wireless networking subsystem is included, enabling the device to communicate with other, similarly enabled, systems and devices within the device's communication range. Due to the inclusion of the wireless networking subsystem, the device can be configured to allow the user to transmit and/or print data, connect to a network, obtain device configuration updates, and send and receive patient and office updates. | 06-09-2011 |
20110150229 | METHOD AND SYSTEM FOR DETERMINING AN AUDITORY PATTERN OF AN AUDIO SEGMENT - A method and apparatus for determining an auditory pattern associated with an audio segment. An average intensity at each of a first plurality of detector locations on an auditory scale based at least in part on a first plurality of frequency components that describe a signal is determined. A plurality of tonal bands in the audio segment, wherein each tonal band comprises a particular range of detector locations of the first plurality of detector locations is determined. Corresponding strongest frequency components in the tonal bands are determined. A plurality of non-tonal bands is determined, and each non-tonal band is subdivided into multiple sub-bands. Corresponding combined frequency components that are representative of a combined sum of intensities of the first plurality of frequency components that is in a corresponding sub-band are determined. An auditory based on the corresponding strongest frequency components and the corresponding combined frequency components is determined. | 06-23-2011 |
20110150230 | SOUND PROCESSING APPARATUS AND METHOD - A sound processing apparatus according to the present invention acquires a test signal for measuring a standing wave state emitted in a listening room, and determines a peak position or a dip position due to a standing wave based on frequency characteristics of the test signal. Next, the sound processing apparatus emits a burst signal corresponding to the frequency of the peak position or the dip position, and acquires this signal. The sound processing apparatus calculates an increment ΔP of the acquired signal, which indicates an amount of increase of a peak in the trailing edge portion corresponding to the end position of the burst signal relative to a peak in the portion corresponding to the stationary portion of the burst signal, and attenuates the frequency of the above peak position or dip position of a sound signal to be output by an attenuation depending on ΔP. | 06-23-2011 |
20110164757 | PINNA SIMULATOR - An ear simulator has an inlet port ( | 07-07-2011 |
20110200200 | TELECOMMUNICATIONS TERMINAL AND METHOD OF OPERATION OF THE TERMINAL - A telecommunications terminal ( | 08-18-2011 |
20110200201 | MEASUREMENT SIGNAL GENERATING DEVICE, MEASUREMENT SIGNAL GENERATING METHOD, MEASUREMENT SIGNAL GENERATING PROGRAM AND STORAGE MEDIUM - A measurement signal generating device is suitably applied to an AV system capable of generating measurement signals used for a sound field correction. Concretely, based on an average value and a standard deviation of a correlation value between two channels in plural channels, a measurement signal generating unit determines an amount for mixing the two signals between the two channels. Then, the measurement signal generating unit generates the measurement signal by mixing the two signals based on the determined amount for mixing the two signals, so as to generate the measurement signals for the plural channels. Thereby, it is possible to generate the measurement signals having the correlation between the channels which is close to a real content. Therefore, by performing the sound field correction by using the measurement signals, it becomes possible to reduce a gap with an evaluation at the time of reproducing the real content. | 08-18-2011 |
20110206211 | AUDIO MANAGEMENT SYSTEM - A system and method for combining multiple media types for demanding mobile communications environments, such as airborne and ship borne communications. The system facilitates integration of multiple media types into a common system, enabling use of the optimal communication system for each media type when possible, and transfer of media between communication systems as necessary. The system facilitates convergence of various media types to a common communications system, for example transferring voice and data over a common IP communications system, integrated control and management of the communications systems including interconnection configuration, priority, and accessibility with integrated management of shared resources. The system is designed to meet all Federal Aviation Administration (FAA) regulatory requirements. | 08-25-2011 |
20110211704 | METHOD AND SYSTEM FOR MEASURING CROSS-POLARIZATION ISOLATION VALUE AND 1 dB GAIN COMPRESSION POINT - Exemplary embodiments include methods and systems for receiving a signal at a monitoring station, determining a transmit cross-polarization isolation value and/or 1 dB gain compression point based at least in part on the signal having one or more polarities; and outputting at about real-time the determination of the transmit cross-polarization isolation value and/or the 1 dB gain compression point to a user. | 09-01-2011 |
20110222696 | CONFIGURABLE ELECTRONIC DEVICE REPROGRAMMABLE TO MODIFY THE DEVICE FREQUENCY RESPONSE - A test signal generator provides a test signal to an acoustic device under test and a data acquisition device acquires data from the acoustic device. The initial frequency response of the signal path through the acoustic device is determined based on the test signal and the acquired data. A target frequency response is selected. A desired configuration of a configurable circuit in the signal path is determined modifying the signal path such that the frequency response of the signal path is substantially similar to the target frequency response. At least one parameter for at least one programmable component of the configurable circuit is determined and programmed into the programmable component. | 09-15-2011 |
20110243340 | Parameter Setting Method and Audio Apparatus - A method of setting a parameter for an audio apparatus including a delay processing unit which applies a delaying process and an amplifying process on an input audio signal in accordance with the set parameter, includes: performing a measuring process including: causing an outputting device to output measurement sound; and measuring a first impulse response at a sound receiving point; performing a specifying process including: analyzing the measured first impulse response; calculating a second impulse response at the sound receiving point when the outputting device outputs sound in case where a parameter is set in the audio apparatus and an audio signal indicative of the measurement sound is input to the audio apparatus; and specifying a parameter in accordance with the calculated second impulse response; and performing a setting process of setting the specified parameter in the delay processing unit. | 10-06-2011 |
20110255700 | Detecting Musical Structures - Among other things, techniques and systems are disclosed for detecting musical structures, such as downbeats. In one aspect, a method performed by a data processing device includes receiving an input audio signal. The method includes detecting a meter in the received audio signal. Detecting the meter includes generating an envelope of the received audio signal; generating an autocorrelation phase matrix having a two-dimensional array based on the generated envelope to identify a dominant periodicity in the received audio signal; and filtering both dimensions of the generated autocorrelation phase matrix to enhance peaks in the two-dimensional array. The meter represents a time signature of the input audio signal having multiple beats. Additionally, the method includes identifying a downbeat as a first beat in the detected meter. | 10-20-2011 |
20110268285 | SOUND IMAGE LOCALIZATION ESTIMATING DEVICE, SOUND IMAGE LOCALIZATION CONTROL SYSTEM, SOUND IMAGE LOCALIZATION ESTIMATION METHOD, AND SOUND IMAGE LOCALIZATION CONTROL METHOD - Sound pressure acquisition element integrate by time and convert into logarithms a plurality of inputted sound signals to acquire each sound pressure corresponding to the plurality of sound signals. Normalizing element normalizes each sound pressure acquired by the sound pressure acquisition element. Linear sum calculating element calculates a linear sum of each sound pressure normalized by the normalizing element using a plurality of parameters which differ for each frequency range of the sound signals. | 11-03-2011 |
20110311065 | EXTRACTION OF CHANNELS FROM MULTICHANNEL SIGNALS UTILIZING STIMULUS - An approach and device for optimizing a sound system by extracting a two-channel stereo source out of a set of multiple channels with unknown frequency responses, crosstalk, time delays and sample rate by employing a digital test sequence that utilizes maximum-length-sequences (MLS) that is fed into the sound system and results in a reconstructed stereo source that may be further used as an input to a signal processor that performs improved speaker and room equalization. | 12-22-2011 |
20120014529 | Electro-Acoustic Transducer Tuning and Data Storage - A device into which an electro-acoustic transducer is incorporated has at least two audio signal conductors through which the device may be coupled to another device to convey analog audio signals representing sounds at a time when the other device places a relatively low DC bias voltage across the at least two audio signal conductors, and to be operated as either a digital serial bus to exchange pieces of digitally-encoded data concerning the electro-acoustic transducer or as a trigger to cause the electro-acoustic transducer to be bypassed to enable another electro-acoustic transducer to be tested at a time when the other device places a relatively high DC bias voltage across the at least two audio signal conductors. | 01-19-2012 |
20120014530 | MULTI-MODE AUDIO DEVICE INTERFACING - A headset having a connector compliant with a specification for a first digital serial bus incorporates a separator circuit that monitors the voltage level of one conductor of that connector to distinguish between a first digital interfacing mode in which the conductors of that connector are operated in a manner supporting the first digital serial bus and a second digital interfacing mode in which the conductors of that connector are operated in a manner in supporting a second digital serial bus, and further, the monitoring of the voltage level of the one conductor may also be employed to distinguish between both the first and second digital interfacing mode and either a third digital interfacing mode or an analog interfacing mode. | 01-19-2012 |
20120020486 | AUDIO DEVICE VOLUME MANAGER USING MEASURED VOLUME PERCEIVED AT A FIRST AUDIO DEVICE TO CONTROL VOLUME GENERATION BY A SECOND AUDIO DEVICE - An audio system includes a first audio device and a second audio device. A communications link connects the first and second audio devices together so that each may communicate with the other. The system includes an audio volume manager that varies the audio output level of the second audio device as a function of the perceived loudness of the second audio device as perceived at the first audio device. | 01-26-2012 |
20120020487 | AUDIO DEVICE VOLUME MANAGER USING MEASURED DISTANCE BETWEEN FIRST AND SECOND AUDIO DEVICES TO CONTROL VOLUME GENERATION BY THE SECOND AUDIO DEVICE - An audio system includes a first audio device and a second audio device. A communications link connects the first and second audio devices together so that each may communicate with the other. The system includes an audio volume manager that varies the audio output level of the second audio device as a function of the perceived loudness of the second audio device as perceived at the first audio device. To determine the perceived loudness of the second audio device as perceived at the first audio device, the audio volume manager may measure the current distance between the first and second audio devices. | 01-26-2012 |
20120027217 | APPARATUS AND METHOD FOR MERGING ACOUSTIC OBJECT INFORMATION - An apparatus and method for merging acoustic object information to provide an Augmented Reality (AR) service in which real images are merged with sounds. The acoustic object information merging apparatus includes an acoustic objectization unit, an acoustic object information creator and a merging unit. The method classifies sounds received in a microphone array to identify an object corresponding to the received sound. If there is a failure to identify an object for each sound, then a band-pass filter is applied to secondarily classify the received sounds. Acoustic object information is created and merged with a captured image or recorded sound. The acoustic object information may include additional information about the object identified as corresponding to the received sound. | 02-02-2012 |
20120045068 | SELF-FAULT DETECTION SYSTEM AND METHOD FOR MICROPHONE ARRAY AND AUDIO-BASED DEVICE - Disclosed herein is a self-fault detection system and method in a microphone array system, in which features for self-fault detection of a microphone array are formed using internal values of a voice activity detector (VAD) with respect to audio signals respectively outputted from a plurality of microphones, the features generated with respect to each of the microphones are mutually and automatically compared without a special reference signal, thereby self-detecting fault microphones. | 02-23-2012 |
20120057712 | MULTI-CHANNEL AUDIO DISPLAY - An audio display system can include an audio input configured to receive a plurality of inputs corresponding different audio channels of a multi-channel audio signal. A phase calculator is configured to determine a relative phase between at least a given pair of the audio channels. An amplitude calculator is configured to determine an amplitude for at least the given pair of audio channels. A display generator is configured to generate an audio display. The audio display can include an amplitude element representing the amplitude determined for each audio channel in the given pair of the audio channels, the amplitude elements being spaced apart from each other to define a phase zone between the respective pair of amplitude elements. The audio display can also include a phase output plotted in the phase zone between the respective pair of amplitude elements, the phase output representing a phase relationship between the given pair of the audio channels. | 03-08-2012 |
20120057713 | AUTOMATIC AUDIO SYSTEM EQUALIZING - An automated process for equalizing an audio system and an apparatus for implementing the process. An audio system includes a microphone unit, for receiving the sound waves radiated from a plurality of speakers, acoustic measuring circuitry, for calculating frequency response measurements; a memory, for storing characteristic data of the loudspeaker units and further for storing the frequency response measurements; and equalization calculation circuitry, for calculating an equalization pattern responsive to the digital data and responsive to the characteristic data of the plurality of loudspeaker units. Also described is an automated equalizing system including a acoustic measuring circuitry including a microphone for measuring frequency response at a plurality of locations; a memory, for storing the frequency responses at the plurality of locations; and equalization calculation circuitry, for calculating, from the frequency responses, an optimized equalization pattern. | 03-08-2012 |
20120070010 | ELECTRONIC DEVICE FOR DETECTING WHITE NOISE DISRUPTIONS AND A METHOD FOR ITS USE - The present device is an audio detection system for detecting irregularities in white noise levels. This system works by first amplifying an audio input signal and determining a baseline. A detecting unit within the system then detects audio levels at, above or below the baseline level and signals a visual output device allowing a user to view this information. In one embodiment, multiple audio detection systems can be used together or combined into a single instrument to determine if irregularities in white noise levels are occurring in a particular place or direction. In another embodiment, the audio detection system can comprise a white noise generator. | 03-22-2012 |
20120093328 | DETECTION CIRCUIT FOR AUDIO DEVICE - A detection circuit of an electronic device, includes a jack circuit, a first switch, a second switch, and a detection end. The jack circuit includes a type detection pin and a connection detection pin. The first switch includes a first control end. The connection detection pin is connected to the first control end to control the first switch on or off according to whether the audio device is connected to the electronic device. The second switch is connected to ground via the first switch. The second switch includes a second control end. The type detection pin is connected to the second control end to control the second switch on or off according to the type of the audio device. The detection end is connected to the first switch via a first resistor, and is connected to the second switch via a second resistor. The detection end is adapted to generate different signals to indicate a connection status of the electronic device and the audio device. | 04-19-2012 |
20120128166 | SYSTEMS, METHODS, APPARATUS, AND COMPUTER-READABLE MEDIA FOR HEAD TRACKING BASED ON RECORDED SOUND SIGNALS - Systems, methods, apparatus, and machine-readable media for detecting head movement based on recorded sound signals are described. | 05-24-2012 |
20120128167 | HOWLING CANCELLER - A howling canceller applied to an acoustic system having a speaker and a microphone comprises: a filter insertion unit for inserting a notch filter at a frequency of an audio signal picked up by the microphone; a setting unit for setting the insertion time of the notch filter on the basis of the frequency at which the notch filter is inserted; and a releasing unit for, when the insertion time set by the setting unit has elapsed, releasing the notch filter, the insertion time of which has elapsed. The setting unit sets the insertion time of the notch filter to be shorter as the frequency at which the notch filter is inserted increases. | 05-24-2012 |
20120134503 | SYSTEM AND METHOD FOR MICROPHONE POLARITY DETECTION - The present disclosure provides a method of determining microphone polarity in a headset. By being able to detect the polarity of the microphone within the headset, a portable electronic device may be compatible with any headset and is not limited to use with a specific headset. By applying a detection signal over one of lines within a headset cable, a return signal may be sensed on one of the other lines to determine which of the lines is the ground line and which line is the microphone line. | 05-31-2012 |
20120148058 | METHODS AND APPARATUS TO DETERMINE LOCATIONS OF AUDIENCE MEMBERS - A disclosed example method to determine a location of an audience member involves generating a correlation analysis result based on correlating first audio samples from a stationary audio detector with second audio samples from a portable audio detector carried by the audience member and determining via a neural network the location of the audience member based on the correlation analysis result. | 06-14-2012 |
20120155660 | AUDIO TESTING SYSTEM AND METHOD - An audio testing system includes an acquisition unit, an input unit, a first analysis unit, a second analysis unit, and an output unit. The acquisition unit obtains an audio signal played back by the audio player. The input unit generates a first input signal and a second input signal. The first analysis unit analyzes the acquired audio signal with a first analysis method in response to the first input signal to obtain performance parameters of the audio player. The second analysis unit analyzes the acquired audio signal with a second analysis method in response to the second input signal to obtain another set of performance parameters of the audio player. The first analysis unit is more accurate than the second analysis unit, and efficiency of the second analysis unit exceeds that of the first analysis unit. | 06-21-2012 |
20120155661 | ELECTRONIC DEVICE AND METHOD FOR TESTING AN AUDIO MODULE - An electronic device and method for testing an audio module of a network device including establishing a first connection between an audio output interface of the electronic device and a microphone interface of the network device. First audio data of a test file is transmitted from the audio output interface to the microphone interface through the first connection. An audio card of the network device records the first audio data output by the microphone interface to generate second audio data, and transmit the second audio data to the electronic device through a network. The second audio data is compared with the first audio data in response to receiving the second audio data by the electronic device. The audio module is determined to be normal if the second audio data matches the first audio data. | 06-21-2012 |
20120155662 | AUDIO APPARATUS, CONTROL METHOD FOR THE AUDIO APPARATUS, AND STORAGE MEDIUM - An audio apparatus includes a sound generation unit configured to generate a measuring signal, a sound collection unit configured to obtain a sound collection signal, a detection unit configured to detect a level difference between the sound collection signal and background noise, a characteristic calculation unit configured to extract each signal period of the measuring signal from the sound collection signal, a feature amount calculation unit configured to calculate a feature amount representative of sudden noise for each period based on each of the period signals, and a determination unit configured to compare feature amounts of the periods and to remove, from periods to be used for averaging the period signals, a period or periods whose feature amounts are not within a range between a threshold value and a minimum value of the feature amounts as a reference, wherein the threshold value is determined according to the detected level difference. | 06-21-2012 |
20120177210 | EARHEALTH MONITORING SYSTEM AND METHOD II - Methods of operating an audio device are provided. A method includes measuring sound pressure levels (SPL | 07-12-2012 |
20120201394 | AUDIO DEVICE VOLUME MANAGER USING MEASURED DISTANCE BETWEEN FIRST AND SECOND AUDIO DEVICES TO CONTROL VOLUME GENERATION BY THE SECOND AUDIO DEVICE - An audio volume control method employs an audio system that includes a first audio device and a second audio device. A communications link connects the first and second audio devices together so that each may communicate with the other. The system includes an audio volume manager that varies the audio output level of the second audio device as a function of the perceived loudness of the second audio device as perceived at the first audio device. To determine the perceived loudness of the second audio device as perceived at the first audio device, the audio volume manager may measure the current distance between the first and second audio devices. | 08-09-2012 |
20120219158 | METHOD FOR CHECKING AUDIO INTERFACE IN AV SYSTEM AND APPARATUS USING THE SAME - A method for checking availability of audio interface between a display apparatus and an AV apparatus in an AV system, and an AV apparatus using the same are provided. The checking includes transmitting a command to check an audio interface to a second AV apparatus where an audio from a first AV apparatus is output, and receiving a result of checking the audio interface in response to the command from the second AV apparatus. Therefore, a user can recognize whether or not an audio interface has a problem in an AV system. | 08-30-2012 |
20120230501 | AUDITORY TEST AND COMPENSATION METHOD - The present invention provides an auditory test and compensation method for an audio system comprising an audio device coupled to an audio output means and a listener of the audio device. The method comprises the steps of: delivering a series of audio stimuli through the audio output means; capturing a listener's response to the audibility of the stimuli; calculating a compensation print from the frequency response; deriving a filter from the calculated compensation print with respect to the frequencies associated with the frequency response and applying the filter to an audio signal of the audio system. | 09-13-2012 |
20120237043 | Surface Texture Recording With Microphone - An apparatus including a microphone; and a profilometer system including the microphone. The profilometer system is configured to use vibrations received at the microphone to create a Surface Texture File (STF). | 09-20-2012 |
20120237044 | Electronic Device and Audio Accessory Having a Plurality of Passive Switches for Controlling the Audio Device - According to some aspects, a system for controlling an electronic device including an audio accessory coupled to the electronic device. The audio accessory has at least one speaker adapted to provide audio output and a plurality of resistive switches. The electronic device has a bias voltage source adapted to provide power to the resistive switches via a bias resistor and a ground connection, and a measurement module. The measurement module is adapted to monitor a bias point to determine which of the at least one switch has been engaged based on effect of the resistive switches on the ground offset voltage after compensating for a ground offset voltage caused by the audio output. | 09-20-2012 |
20120243696 | Supervisory Method and Apparatus for Audio Input Path - A supervisory apparatus and method are useable with personal, or micro-computers. A passive module can be coupled to a computer sound card. The module can be coupled to a speaker and a microphone. The speaker can emit a supervisory audio signal generated by the sound card. The microphone can sense and feedback the supervisory signal. Where no supervisory audio has been detected during a pre-set time interval, an audio path failure can be reported. | 09-27-2012 |
20120243697 | MULTIPLE SUPERIMPOSED AUDIO FREQUENCY TEST SYSTEM AND SOUND CHAMBER WITH ATTENUATED ECHO PROPERTIES - A composite sound dampening structure includes a first base layer of sound dampening material extending around and against an inside surface of a container and a second wedge layer of sound dampening material attached to an inside surface of the first base layer. The composite sound dampening structure provides improved acoustic dampening in relative small sound chambers. An audio test system generates a composite audio signal of multiple different audio signals that are combined together using linear superposition. The composite audio signal allows a device to be simultaneously tested with multiple different audio frequencies. | 09-27-2012 |
20120250870 | CALIBRATING A PUBLIC ADDRESS INSTALLATION - A method for calibrating a public address installation comprising simulation of a public address system based on simulation parameters is provided. The public address system may comprise the public address installation and an auditorium. A simulation may deliver configuration parameters for the public address installation. The public address installation may be configured using the delivered configuration parameters, for example. The public address installation may be operated, and acoustic measurements may be taken in the auditorium. The simulation parameters may be customized based on measurement results from the acoustic measurements in order to reduce a discrepancy between simulation results and measurement results for the public address system. | 10-04-2012 |
20120269356 | SELF CALIBRATING MULTI-ELEMENT DIPOLE MICROPHONE - A self calibrating dipole microphone formed from two omni-directional acoustic sensors. The microphone includes a sound source acoustically coupled to the acoustic sensors and a processor. The sound source is excited with a test signal, exposing the acoustic sensors to acoustic calibration signals. The responses of the acoustic sensors to the calibration signals are compared by the processor, and one or more correction factors determined. Digital filter coefficients are calculated based on the one or more correction factors, and applied to the output signals of the acoustic sensors to compensate for differences in the sensitivities of the acoustic sensors. The filtered signals provide acoustic sensor outputs having matching responses, which are subtractively combined to form the dipole microphone output. | 10-25-2012 |
20120281848 | MICROPHONE SYSTEM AND METHOD FOR SELECTING AN OPERATING FREQUENCY FOR A OR SAID MICROPHONE SYSTEM AND COMPUTER PROGRAM - Wireless microphones are used in a plurality of applications, such as concerts, discussions, theater performances, operas, etc. The wireless microphones are normally connected to a transmitter which transmits the audio signals captured by the microphone to a base station via a transmitting frequency. The invention relates to a microphone system ( | 11-08-2012 |
20130003981 | Calibration of Headphones to Improve Accuracy of Recorded Audio Content - User headphones are calibrated in real time to improve the reproduction accuracy of recorded audio content. Microphones of a type used to record the audio content (including their orientation and recording characteristics) are characterized to indicate a first audio coloration. Audio playback devices of a type used to process the audio content are characterized to indicate a second audio coloration. Headphones of a type corresponding to the user headphones are characterized to indicate a third audio coloration. An equalization signal is computed based on the audio colorations, and is applied to calibrate the user headphones during playback of the audio content. A database of the characterizations is maintained so that calibration of different models of headphones using different playback devices can be accomplished for audio content recorded using different models of microphones. | 01-03-2013 |
20130034234 | HEARING AID DETECTION - A hearing aid compatible portable electronic audio device is configured to automatically determine whether or not the device is being used by a hearing impaired user who is wearing a hearing aid, and select a mode of operation based on this determination. The device includes a proximity sensor and a magnetic field sensor. The proximity sensor is used to detect a change in distance of the device to the user's ear. The magnetic field sensor is used to detect a change in magnetic field caused by the device moving relative to the hearing aid. The device selects between a normal audio mode of operation and a hearing aid compatible mode of operation based on both the change in detected distance and the change in detected magnetic field. Other embodiments are also described and claimed. | 02-07-2013 |
20130039500 | TRIM METHOD FOR CMOS-MEMS MICROPHONES - Systems and methods for adjusting a bias voltage and gain of the microphone to account for variations in a thickness of a gap between a movable membrane and a stationary backplate in a MEMS microphone due to the manufacturing process. The microphone is exposed to acoustic pressures of a first magnitude and a sensitivity of the microphone is evaluated according to a predetermined sensitivity protocol. The bias voltage of the microphone is adjusted when the microphone does not meet the sensitivity protocol. The microphone is then exposed to acoustic waves of a second magnitude that is greater than the first magnitude and a stability of the microphone is evaluated according to a predetermined stability protocol. The bias voltage and the gain of the microphone are adjusted when the microphone does not meet the stability protocol. | 02-14-2013 |
20130039501 | System, Method, and Computer Program Product for Voice Decibel Monitoring on Electronic Computing Devices - The present invention in general relates to a voice decibel application and a method for a phone and in particularly relates to the application and the method for a phone to measure the voice decibel during a phone call. The application incorporated into the user's phone is configured to measure the voice decibel during a phone call and send a signal to the user in case the voice decibel exceeds or goes below a preset voice decibel threshold level. The present invention is advantageous because it will help the users to recognize their talking habits and assist them in improving their talking habits. | 02-14-2013 |
20130039502 | METHOD FOR TESTING ECHO CANCELLERS - The performance of an echo canceller is assessed using a) a test signal launched from originating test equipment and b) a simulated echo of the test signal launched from terminating test equipment. The launch of the simulated echo signal is timed in such a way that it arrives at the tandem echo canceller(s) at a particular point in time relative to the arrival of the test signal, at the tandem echo canceller(s), when the tandem echo canceller(s) is (are) not able to cancel the simulated echo signal. The latter thus arrives uncanceled at the target echo canceller. The launch of the simulated echo signal is further timed in such a way that it arrives at the target echo canceller at a point in time relative to the arrival of the test signal, at the target echo canceller, when the target echo canceller is able to cancel the simulated echo signal. As a result, any residual echo received at the originating test equipment is a measure of the performance of the target echo canceller exclusive of the performance of the tandem echo canceller(s). | 02-14-2013 |
20130058490 | SUPPRESSION OF INTERFERENCE ACROSS TRANSCEIVERS INTEGRATED ON A SINGLE SEMICONDUCTOR CHIP - Suppression of interference across transceivers integrated on a single semiconductor chip. An example of a method of reducing noise in a transceiver includes introducing an adjustable time delay into a signal between a first section of a signal path into which noise may be introduced and a second section of the signal path into which noise may be introduced. The method also includes selectively adjusting the time delay and signal polarity to improve a signal-to-noise metric of the transceiver. An example of the transceiver includes a transmitter and a receiver. The transceiver also includes an adjustable time delay between a first section of a transceiver signal path into which noise may be introduced and a second section of the transceiver signal path into which noise may be introduced and circuitry for reducing noise by adjusting a value of the time delay. | 03-07-2013 |
20130058491 | AUDIO LEVEL METER - A circuit for correcting the output of an audio level meter comprises input means for generating the square or the absolute value of an input signal, a low pass filter having a predetermined attack time and release time, and output means for converting the output signal from a linear scale to a logarithmic scale. The circuit further comprises a correction means to which an information about whether the input signal to the audio level meter was subject to squaring or converting into an absolute value at the input, as well as the attack and release time of the low pass filter, are supplied as input values, and which provides, at its output, a value representing the difference between the output of the audio level meter and the true signal power of the input signal. | 03-07-2013 |
20130064381 | MOBILE DEVICE FOR MULTI-CHANNEL SOUND COLLECTION AND OUTPUT USING COMMON CONNECTOR, AND DRIVING METHOD THEREOF - A mobile device for providing multi-channel sound collection and output using a common connector, and a driving method thereof are provided. A mobile device having a sound compressor and a sound decompressor includes a connector slidably receiving a sound collector plug or a sound output plug, a plug identification unit for, if one of the sound collector plug and the sound output plug is coupled to the connector, identifying if the plug coupled to the connector is the sound collector plug or is the sound output plug, a switching unit for electrically coupling the plug coupled to the connector, to the sound compressor, or electrically coupling the plug coupled to the connector, to the sound decompressor, and a controller for controlling switching of the switching unit according to the identification outcome. | 03-14-2013 |
20130070932 | FAILURE DETECTION DEVICE FOR VEHICLE SPEAKER - A failure detection device for a vehicle speaker includes a signal generator, an amplifier, a coupling capacitor, a supply circuit, a detection circuit, and a determination section. The signal generator generates a sound signal corresponding to sound outputted from the speaker. The amplifier amplifies the sound signal. The capacitor supplies the amplified sound signal to the speaker. The supply circuit supplies a direct-current test current to the speaker so that the test current does not flow through the capacitor by applying a test voltage to the speaker. The test voltage is higher than a voltage of the sound signal. The detection circuit detects a terminal voltage of the speaker. The determination section determines whether at least one of an open-circuit and a short-circuit occurs in the speaker based on the terminal voltage during application of the sound signal to the speaker. | 03-21-2013 |
20130083932 | Methods and systems for measuring and reporting an energy level of a sound component within a sound mix - Various embodiments relate to determining an energy level of one or more sound components from a sound mix. Based on at least one sound mix signal received from a mixing device and at least one component signal received from one or more sound components, at least one signal value of the sound mix signal and at least one signal value of the component signal may be computed. The component signal corresponds to each of the one or more sound components. An energy level of the one or more sound components may be determined based on the sound mix signal value and the component signal value which corresponds to each of the one or more sound components. The energy level of the one or more sound components may be output in order to determine the energy level of each component in the sound mix. | 04-04-2013 |
20130083933 | PRESSURE SENSING EARBUDS AND SYSTEMS AND METHODS FOR THE USE THEREOF - Pressure sensing earbuds and systems are disclosed. The earbuds can include one or more pressure sensors to determine the size and shape of a user's ear. The pressure signals can be relayed back to a processor, which may use them to dynamically optimize the volume levels delivered for frequencies over the audible range for a particular user. | 04-04-2013 |
20130083934 | Processing Audio Signals - Method, device and computer program product for processing audio signals at the device, the device comprising an audio output for outputting audio signals. Audio signals are received at a plurality of microphones of the device. A characteristic of at least one of the audio signals received by the plurality of microphones is measured. A beamformer applies beamformer coefficients to the received audio signals, thereby generating a beamformer output. An echo canceller is applied to the beamformer output, thereby suppressing, from the beamformer output, an echo resulting from audio signals output from the audio output, wherein an operating parameter of the echo canceller is controlled based on the measured characteristic of the at least one of the audio signals received by the plurality of microphones. | 04-04-2013 |
20130083935 | METHOD FOR TESTING AN AUDIO JACK OF A PORTABLE ELECTRONIC DEVICE - A method for testing an audio jack of a portable electronic device is provided. The audio jack has a first sound channel, a second channel and a microphone. First, the first sound channel is controlled to play a designated audio file by the portable electronic device. Nest, the played sound is recorded into another recorded audio file by the portable electronic device at the same when the first sound channel is playing the designated audio file. Afterwards, the recorded audio file is played via the second sound channel by the portable electronic device. Finally, it is determined whether the another recorded audio file that is played matches with the designated audio file, and if the audio files match, it represents that the first sound channel, the second sound channel and the microphone have normal function. | 04-04-2013 |
20130089210 | END OF BRANCH MODULE SYSTEM - An end-of-branch (EOB) module system for an audio signal distribution system having a wired trunk and a plurality of wired branches extending communicatively from such trunk, the EOB module system including: a plurality of EOB modules including one EOB module electronically coupled at each distal end of each branch and trunk of the audio signal distribution system, where each EOB module of the plurality of EOB modules has a unique address together forming a plurality of unique addresses; a test system able to send a test carrier signal encoded with any one unique address of the plurality of unique addresses at a time onto the trunk; and a switch within each EOB module, responsive to its unique address to place an end-of-line (EOL) load on its respective branch or trunk, and where power for operation of each EOB module is provided by rectification of the test signal. | 04-11-2013 |
20130101127 | SYSTEM AND METHOD FOR CHANGING AN ACTIVATION STATE OF AN ELECTRONIC DEVICE USING ACOUSTIC SIGNALS - The disclosure relates to a system and method for unlocking and unlocking activation to a device. An activation management system of an embodiment comprises: a sensor providing an output signal when the sensor is activated by an acoustic signal; and an activation module receiving the output signal from the sensor. The activation module evaluates the output signal against a pattern and to change an activation state of the device if the output signal completes a match for the pattern. | 04-25-2013 |
20130108062 | DEVICE AND METHOD FOR DIAGNOSING AUDIO CIRCUITRY | 05-02-2013 |
20130108063 | INVOKING AND SUPPORTING DEVICE TESTING THROUGH AUDIO CONNECTORS | 05-02-2013 |
20130108065 | METHODS FOR INVOKING TESTING USING REVERSIBLE CONNECTORS | 05-02-2013 |
20130136267 | Microphone and Method for Calibrating a Microphone - A microphone and a method for calibrating a microphone are disclosed. In one embodiment the method for calibrating a microphone comprises operating a MEMS device based on a first AC bias voltage, measuring a pull-in voltage, calculating a second AC bias voltage or a DC bias voltage, and operating the MEMS device based the second AC bias voltage or the DC bias voltage. | 05-30-2013 |
20130142346 | AUDIO TESTING SYSTEM AND AUDIO TESTING METHOD FOR DEVICE UNDER TEST - An audio testing system and an audio testing method for an electronic device under test are provided. The audio testing method includes the following steps. A testing audio is sent through a testing audio sending end of a testing device. An electronic device under test is controlled to perform recording through an audio receiving end, so as to generate an under-testing audio. After the recording is completed, the device under test controlled to playback the under-testing audio from one of both-side audio sending ends to perform recording through the testing audio receiving end, and calls an audio analyzing process to generate a first testing result. The device under test controlled to playback the under-testing audio from the other one of the both-side audio sending ends to perform recording through the testing audio receiving end, and calls the audio analyzing process to generate a second testing result. | 06-06-2013 |
20130142347 | VEHICULAR THREAT DETECTION BASED ON AUDIO SIGNALS - Techniques for ability enhancement are described. Some embodiments provide an ability enhancement facilitator system (“AEFS”) configured to enhance a user's ability to operate or function in a transportation-related context as a pedestrian or a vehicle operator. In one embodiment, the AEFS is configured perform vehicular threat detection based at least in part on analyzing audio signals. An example AEFS receives data that represents an audio signal emitted by a vehicle. The AEFS analyzes the audio signal to determine vehicular threat information, such as that the vehicle may collide with the user. The AEFS then informs the user of the determined vehicular threat information, such as by transmitting a warning to a wearable device configured to present the warning to the user. | 06-06-2013 |
20130170657 | METHODS AND SYSTEMS TO MONITOR A MEDIA DEVICE USING A DIGITAL AUDIO SIGNAL - Methods and systems are disclosed to monitor a media device. An example method includes attempting to detect a transition in a digital audio signal output by a port of the media device. If the transition is detected, the example method includes determining the media device is in an on state. If the transition is not detected, the example method includes determining the media device is in an off state. | 07-04-2013 |
20130170658 | INFORMATION PROCESSOR, AUDIO PROCESSOR, AUDIO PROCESSING SYSTEM AND PROGRAM - An audio processor acquires processed sound data, which is obtained by processing original sound data according to a content of processing defined such that first sound is emitted under the standard sound emission condition, in association with a sound emission device, acquires a control signal, and acquires a device sound emission condition. In order to make second sound emitted by the sound emission device under the acquired device sound emission condition close to the first sound, the audio processor identifies the correction content of the processed sound data based on a difference between the device sound emission condition and the standard sound emission condition, the control signal, and the processed sound data acquired in association with the sound emission device. The audio processor corrects the processed sound data according to the correction content, and supplies the corrected processed sound data to the sound emission device. | 07-04-2013 |
20130182858 | AUGMENTED REALITY WITH SOUND AND GEOMETRIC ANALYSIS - A method for responding in an augmented reality (AR) application of a mobile device to an external sound is disclosed. The mobile device detects a target. A virtual object is initiated in the AR application. Further, the external sound is received, by at least one sound sensor of the mobile device, from a sound source. Geometric information between the sound source and the target is determined, and at least one response for the virtual object to perform in the AR application is generated based on the geometric information. | 07-18-2013 |
20130188795 | METHOD AND APPARATUS TO MEASURE DIFFERNTIAL PHASE AND FREQUENCY MODULATION DISTORTIONS FOR AUDIO EQUIPMENT - A testing method or apparatus utilizes multiple frequencies applied to a device under test for measuring newly discovered frequency modulation effects. An embodiment may include a lower frequency signal combined with two (or more) higher frequency signals to test a dynamic change in frequency response, gain, and or phase of the lower frequency signal from an audio device. This dynamic test can reveal frequency modulation effects via the two higher frequency signals emulate a modulated signal that provides a phase or frequency modulation frequency related to the difference of the two higher frequency signals. Another embodiment may include the use of a higher frequency signal and pulsed waveform to dynamically induce a time varying phase or frequency distortion of the pulsed waveform or components of the pulsed waveform from the device that has differential phase distortion. In another embodiment, the device's output is then measured with an FM detector and or phase detector to measure a phase and or frequency shift in one or more signals of the frequencies related to the pulsed waveform, such as a signal of the fundamental frequency and or one or more harmonic related to the pulsed waveform the device. | 07-25-2013 |
20130223636 | MEASUREMENT APPARATUS AND MEASUREMENT METHOD - According to one embodiment, a measurement apparatus is configured to supply, to a output device, a second measurement signal to sweep the frequency, to receive a second received signal output from the output device when the second measurement signal is supplied to the output device, and to calculate an impulse response by convolving the second received signal and an inverted measurement signal having an inverted characteristic of the second measurement signal. The second measurement signal has a signal characteristic obtained by multiplying the first measurement signal by a characteristic of a characteristic of the amplitude spectrum. | 08-29-2013 |
20130230181 | MICROPHONE AND METHOD FOR MODELLING MICROPHONE CHARACTERISTICS - A method of modelling microphone characteristics of a target microphone is provided. An impulse response of target microphones is measured over different angles. A signal conditioning on the measurement data is performed. The spatial response based on a spatial response matching algorithm is matched and filter parameters and/or model parameters are determined. | 09-05-2013 |
20130251160 | PURE TONE TEST APPARATUS AND METHOD FOR CONTROLLING THE SAME - Disclosed herein is a pure tone test apparatus including: a stage including a support supporting a pure tone test target; a support plate mounted on one side of the stage and having a guide mounted on a front surface thereof; an acoustic detection unit movably mounted on the guide and being engaged with the support to detect noise generated from the target; a control unit connected with the guide, the acoustic detection unit, and the support to control a pure tone test; and a display unit displaying a pure tone test result detected by the control of the control unit. | 09-26-2013 |
20130251161 | CUSTOM IN-EAR MONITOR - An in-ear monitor that can be customized for particular applications and individuals includes a housing formed from a body and a cover. A dynamic driver is mounted in a cavity in the housing on an angled mounting flange. The dynamic driver is acoustically coupled to a trumpet-shaped sound collector. The trumpet-shaped sound collector is coupled to a main sound bore that exits an opening in a nozzle portion of the body that is inserted into the ear canal of a user. An ambient sound port collects ambient sound and couples it to the sound bore. An additional bass post increases the bass response of the monitor. Ear impressions are used to customize the body of the monitor to the ear of a user and the location of the bass and ambient sound ports can be altered for different applications. | 09-26-2013 |
20130251162 | AUDIO MONITORING DEVICE - An audio monitoring device for testing an audio device is provided. The audio device is placed in a shielding room which contains a signal emitter. The signal emitter emits electromagnetic waves which electronically interfere with the audio device. The audio monitoring device includes a sound collector, a sound transmitting tube, and a sound outputting element. The sound collector is positioned in the shielding room and collects sounds from the audio device produced whilst being subjected to the electromagnetic interference issued by the signal emitter. The sound transmitting tube has one end connected to the sound collector and the other end exposed from the shielding room, to connect to the sound outputting element. The sound transmitting tube transmits the sounds collected by the sound collector to the sound outputting element for analysis. | 09-26-2013 |
20130251163 | AUDIO SYSTEM WITH INTEGRATED POWER, AUDIO SIGNAL AND CONTROL DISTRIBUTION - A control and distribution system provides electrical power distribution, audio signal distribution, and control signal distribution to one or more audio components, such as a powered loudspeaker element or a signal conditioning device such as a rack-mounted amplifier. Embodiments allow for the monitoring and/or control of parameters and/or components at or near the endpoint of the system. These parameters or components include low-level parameters associated with the external audio devices, as opposed to merely higher level parameters of the system. The control and distribution system may include an uninterrupted power source for providing power in an online or offline mode to selected components of the external audio devices. In some embodiments, online backup power is provided to low-power components without providing power to amplifiers within the external audio devices. | 09-26-2013 |
20130259244 | HEARING DEVICE WITH AN INERTIAL MEASUREMENT UNIT - A new hearing device is provided with an inertial measurement unit for determination of yaw of the orientation of a user's head, when the hearing device is worn in its intended operational position on the user's head. | 10-03-2013 |
20130259245 | CONTROL METHOD OF SOUND PRODUCING, SOUND PRODUCING APPARATUS, AND PORTABLE APPARATUS - A control method of sound producing, sound producing apparatus, and portable apparatus are provided. The control method of sound producing is for a portable device, including the following steps. (a) A first detected parameter indicating a detected excursion of a speaker of the portable device is generated. (b) A second audio signal is generated based on a first audio signal, wherein the second audio signal is generated selectively by compensation according to at least the first detected parameter. (c) A gain value is determined according to at least the first detected parameter and a third audio signal is generated based on the second audio signal according to the gain value. | 10-03-2013 |
20130266148 | Electronic Devices for Reducing Acoustic Leakage Effects and Related Methods and Computer Program Products - An electronic device includes a housing comprising a speaker configured to be positioned adjacent an ear of a user, and a position-sensitive region on the housing that is configured to sense a position of the ear of the user relative to the housing when the ear is positioned adjacent the speaker and to generate an acoustic leakage position signal responsive to the sensed position of the ear of the user. A control unit is in communication with the speaker and the position-sensitive region and is configured to provide an electrical input signal to the speaker. The control unit is further configured to receive the acoustic leakage position signal and to adapt the electrical input signal responsive to the acoustic leakage position signal. | 10-10-2013 |
20130315404 | OPTIMUM BROADCAST AUDIO CAPTURING APPARATUS, METHOD AND SYSTEM - The OPTIMUM BROADCAST AUDIO CAPTURING APPARATUS, METHOD AND SYSTEM (“OBAC”) transforms selection request, video feeds, and, audio feeds inputs via OBAC components into synchronized and optimum video and audio outputs. In one embodiment, a processor-implemented method for capturing optimal audio in sports broadcasting is disclosed, comprising: receiving real time data from a first instrumented camera situated in a venue; processing the real time data to determine a first field position in the venue; activating a first microphone from a plurality of microphones in a first microphone array based on the first field position; and sending a first audio selection from the first microphone. | 11-28-2013 |
20130315405 | SOUND PROCESSOR, SOUND PROCESSING METHOD, AND COMPUTER PROGRAM PRODUCT - According to one embodiment, sound processor includes: communication module; outputting module; recording module; display; input module; controller; and calculating module. The controller (i) displays, on display, message prompting user to move a sound input device to position proximate to speaker, (ii) causes the outputting module to output the test sound and causes the recording module to record first sound, (iii) displays, after the first sound is recorded, on the display, message prompting the user to move the sound input device to listening position, and (iv) causes the outputting module to output the test sound and causes the recording module to record second sound. The calculating module finds a first frequency characteristic of the first sound and a second frequency characteristic of the second sound, and calculates, based on a difference between the first and second frequency characteristics, a value for correcting the second frequency characteristic to a target frequency characteristic. | 11-28-2013 |
20130315406 | SYSTEM AND METHOD FOR DATA PROCESSING USING EARPHONE PORT - In order to solve the above-described problem, the present disclosure provides a system and a method for signal processing with an external smart device using an earphone port. The earphone port includes a speaker terminal and a microphone terminal and receives a signal from an earphone plug of the peripheral device connected to the smart device. The connection recognition unit recognizes a connection between the earphone plug of the peripheral device and the earphone port. The application operating unit receives an executive command of an existing signal processing application through an input module and executes the signal processing application in response to the executive command. The data processing unit performs a predetermined signal analysis on a data signal input from the peripheral device through the microphone terminal according to an operation of the executed signal processing application and outputs a result of the signal analysis through an output module. | 11-28-2013 |
20130322637 | CONDENSER MICROPHONE - A condenser microphone outputs a signal resistive to distortion caused by an excess input without a variation in signal-to-noise ratio. The microphone includes a first condenser microphone unit and a second condenser microphone unit that generate output signals having phases opposite to each other; and a twin variable resistor connected to an output terminal of each of the first and second condenser microphone units. In the microphone, the output signal of the first unit is combined with the output signal of the second unit in a first variable resistor included in the twin variable resistor and the composite signal is applied to an input of the first unit, and the output signal of the first unit is combined with the output signal of the second unit in a second variable resistor included in the twin variable resistor and the composite signal is applied to an input of the second unit. | 12-05-2013 |
20130329896 | SYSTEMS AND METHODS FOR DETERMINING THE CONDITION OF MULTIPLE MICROPHONES - Systems and methods for determining the operating condition of multiple microphones of an electronic device are disclosed. A system can include a plurality of microphones operative to receive signals, a microphone condition detector, and a plurality of microphone condition determination sources. The microphone condition detector can determine a condition for each of the plurality of microphones by using the received signals and accessing at least one microphone condition determination source. | 12-12-2013 |
20130343552 | CIRCUIT FOR TESTING BUZZER - A circuit for testing a buzzer includes a microphone, an amplifier circuit, a microprocessor circuit, and a display circuit. The amplifier circuit is configured to amplify an analog signal from the microphone to an amplified signal. The microprocessor circuit determines whether a loudness and a frequency of the amplified signal are within proper ranges. The buzzer is qualified if the loudness and frequency of the amplified signal are within the proper ranges. The display unit displays the loudness, the frequency, and a test result. | 12-26-2013 |
20130343553 | Detection of Device Configuration - Devices connected with a computer system are interrogated to detect whether they are configured and functioning. In an audio device implementation, a known audio sample is output to a loudspeaker. If the loudspeaker is properly configured and functional, an attached microphone will capture the sound corresponding to the audio sample generated by the loudspeaker. If sound corresponding to the audio sample is detected, an indication is provided to the user that the microphone and loudspeaker are operational. If no sound corresponding to the audio sample is detected, an indication is provided to the user that the loudspeaker is not enabled and additional configuration is required. | 12-26-2013 |
20140003609 | MICROPHONE ARRANGEMENT | 01-02-2014 |
20140029753 | MICROPHONE INSPECTION METHOD - A microphone inspection method includes the following steps. Firstly, a sound wave from a speaker is received by an under-test microphone and a reference microphone. Consequently, a first characteristic point distribution chart and a second characteristic point distribution chart are created, respectively. Each of the first characteristic point distribution chart and the second characteristic point distribution chart includes plural characteristic points corresponding to respective normalized frequency values. Then, a characteristic point number difference between a number of the characteristic points of the first characteristic point distribution chart and a number of the characteristic points of the second characteristic point distribution chart within a specified normalized frequency value range is calculated. Consequently, the quality of the under-test microphone is judged according to the characteristic point number difference. | 01-30-2014 |
20140029754 | METHOD FOR OPERATING A PUBLIC ADDRESS SYSTEM - The invention relates to a method for operating a public address system with a control center to which loudspeakers are connected via a two-wire loop system that is routed via isolator modules. A fault can be located on the loop system if the control center measures the impedance of the loop system successively from isolator module to isolator module and the impedance of the entire loop system, inputs the measured values as target values into an impedance table, periodically measures the impedance of the entire loop system during operation and compares said impedance with the corresponding target value from the impedance table, generates a fault message upon determining a deviation, and ascertains the fault location by comparing the measured value with the individual target values in the impedance table and displays said fault location. | 01-30-2014 |
20140029755 | METHOD AND APPARATUS FOR CONTROLLING SOUND SIGNAL OUTPUT - A method and an apparatus control sound signal output. The method of controlling a sound signal output in a terminal includes: storing receiver identifications and corresponding sound signal control parameters associated with each other by the terminal; providing a receiver selection interface capable of selecting one from a list of the receiver identifications and the receiver identifications included in the list by the terminal; receiving one receiver identification through the receiver selection interface; converting a digital sound signal into an analog sound signal by applying a sound signal control parameter corresponding to the received receiver identification; and outputting the analog sound signal. | 01-30-2014 |
20140029756 | HEARING PROTECTION SYSTEM - A hearing protection system including a detection subsystem configured to determine bone conducted sound vibrations and one or more actuators placed proximate a predetermined location on the skull of a user configured to generate cancellation vibrations out of phase with the bone conducted sound vibrations to mitigate the effect of bone conducted sound vibrations on the middle and/or inner ear of a user. | 01-30-2014 |
20140037096 | SEAL-QUALITY ESTIMATION FOR A SEAL FOR AN EAR CANAL - Measurements of body sounds in the ear canal may be used for many applications. However, reliability is dependent on the ear canal being properly sealed to allow the body sounds to achieve a detectable level. An apparatus is therefore provided for determining a seal quality indication for a seal of an ear canal. An ear canal microphone ( | 02-06-2014 |
20140056434 | MULTITRACK RECORDER - A multitrack recorder enables performance of easy identification as to whether a certain track is a monaural type or a stereo type, by means of level meters. The multitrack recorder can set tracks | 02-27-2014 |
20140064499 | CONTENT PROCESSING APPARATUS AND METHOD USING SOUND - A content processing apparatus using sound includes a sound processor configured to generate acoustic sound for a locality check when an event in which locality check is to be executed is generated, a speaker configured to output the acoustic sound, a microphone configured to receive response sound output from an external apparatus which receives the acoustic sound, and a controller configured to determine the external apparatus which outputs the response sound as a peripheral apparatus. | 03-06-2014 |
20140064500 | Automatic Power Adjusting Headphones - The invention relates to a device, system, and method for a headphone that detects whether the device is in use and either automatically powers up the device when in use, or automatically powers down the device when not in use, or both. | 03-06-2014 |
20140064501 | METHOD AND A SYSTEM OF PROVIDING INFORMATION TO A USER - A method and system for providing information to a user positioned in a room with two independent listening areas where, in one area, an audio signal is output compensating for the sound from the other area, and where a position between the two areas is indicated to a user. When the user moves about, the position and size of one listening area may change, and the user may be made aware of any conflict with the other listening area. The areas may be defined by boundaries where a compensation quality is at a threshold quality. | 03-06-2014 |
20140072129 | METHOD AND APPARATUS FOR DETECTING INSERTION OF EXTERNAL AUDIO OUTPUTTING DEVICE IN ELECTRONIC DEVICE - Apparatus and method for detecting insertion of an external audio outputting device in an electronic device. The apparatus comprises an earphone socket into which the external audio outputting device is inserted. The earphone socket includes first and second terminal sets, each terminal set having at least two electrical contacts. A controller determines an insertion condition if each of the terminal sets is shorted, and determines a non-insertion condition if only one terminal set is shorted, or if neither of the terminal sets is shorted. | 03-13-2014 |
20140079228 | MICROPHONE TEST FIXTURE - A microphone test fixture. The test fixture includes a test chamber, an acoustic source, a reference microphone, and an acoustic resistor. The acoustic source is configured to produce sound waves in the test chamber. The reference microphone is positioned to receive the sound waves in the test chamber. The acoustic resistor forms a contiguous space with the test chamber, and is sized to prevent resonances and echoes of the sound waves for a fixed high frequency limit. | 03-20-2014 |
20140079229 | DEVICE TESTING USING ACOUSTIC PORT OBSTRUCTION - Methods and systems are taught for testing microphone packages—including measuring non-acoustic noise for the package. A package positioner holds a microphone package such that an acoustic input port of the microphone package is aligned with a plug. An actuator moves the plug relative to the microphone package between a first position—where the plug does not obstruct the acoustic input port of the microphone package—and a second position—where the plug obstructs the acoustic input port and restricts acoustic pressures from entering the microphone package through the acoustic input port. A controller monitors an output of the microphone package and identifies the output as indicative of isolated non-acoustic noise when the plug is in the second position. | 03-20-2014 |
20140086423 | MULTIPLE DEVICE NOISE REDUCTION MICROPHONE ARRAY - Various embodiments are directed to cooperation among communications devices having microphones to employ their microphones in unison to provide voice detection with noise reduction for voice communications. A first communications device comprises a processor circuit; a first microphone; an interface operative to communicatively couple the processor circuit to a network; and a storage communicatively coupled to the processor circuit and arranged to store a sequence of instructions operative on the processor circuit to store a first detected data that represents sounds detected by the first microphone; receive a second detected data via the network that represents sounds detected by a second microphone of a second communications device; subtractively sum the first and second data to create a processed data; and transmit the processed data to a third communications device. Other embodiments are described and claimed herein. | 03-27-2014 |
20140093088 | Method of checking earphone wearing state - An information processing apparatus that detects an output from a 3-axis acceleration sensor included in an earphone unit worn by a user while the user is in a still state; monitors the output of the 3-axis acceleration sensor while a nodding gesture is performed by the user; detects a time when an angle of the nodding gesture reaches a maximum; and determines an earphone wearing state based on the output from the 3-axis acceleration sensor in the still state and the output from the 3-axis acceleration sensor at the time of detecting the maximum nodding angle. | 04-03-2014 |
20140119549 | Monitoring microphone transmission quality by analyzing signals from an embedded sounder - A system and method is described for monitoring the recording quality of a microphone. Some microphones, mostly in fixed installations, already feature a (piezo) sounder built into the microphone housing which is used to assess whether the microphone is functioning properly. At random or fixed intervals, the sounder produces a known signal; the microphone signal is then measured to determine if the microphone is working The disclosed invention comes down to extension of this principle by not only testing if the signal is reproduced at the correct level, but also using the sounder to measure the transmission quality of the microphone. The sounder produces a signal designed for this purpose. Upon playback of this test signal, the microphone signal is analysed to determine the overall transmission quality of the microphone, and evaluate the influence of factors that degrade quality, such as noise, bandwidth limiting, dynamic range and reverberation. | 05-01-2014 |
20140126729 | ADAPTIVE SYSTEM FOR MANAGING A PLURALITY OF MICROPHONES AND SPEAKERS - Methods and systems are provided for adaptively managing a plurality of microphones and speakers in an electronic device. A mode of operation of the electronic device may be determined, and operation of at least one speaker may be managed, based on the determined mode of operation. The managing may comprise adaptively switching or modifying functions of the at least one speaker. For example, the at least one speaker may be configured to act as microphone or as vibration detector. Input obtained using the at least one speaker may be utilized in optimizing audio related functions, such as noise reduction and/or acoustic echo canceling. | 05-08-2014 |
20140140521 | ELECTRONIC DEVICE ADAPTED FOR DETECTING A VEHICLE AUDIO SYSTEM - According to some aspects an electronic device adapted to detect whether it is coupled to an audio system. The electronic device includes a pulse generator adapted to generate a pulse on a ground return line of the electronic device, and a detector adapted to observe if a response signal is received by the electronic device corresponding to the pulse. If the response signal is received, the electronic device determined that it is coupled to the audio system | 05-22-2014 |
20140146972 | MICROPHONE SYSTEM AND RELATED CALIBRATION CONTROL METHOD AND CALIBRATION CONTROL MODULE - An embodiment of the invention provides a calibration control method performed by a microphone system. The microphone system includes a plurality of microphones configured to generate a plurality of microphone signals. First, the microphone system equalize the microphone signals to generate a plurality of equalized microphone signals. Next, the microphone system calculates a set of similarity indicators based on the equalized microphone signals. Then, the microphone system compares the set of similarity indicators with a set of predetermined thresholds to determine whether to calibrate the microphone signals. | 05-29-2014 |
20140146973 | Test Device And Test Method For Active Noise Reduction Headphone - The present invention discloses a test device and test method for the noise reduction headphone. The test device comprises: an enclosed cavity, a noise source, a test panel, a measuring microphone and a measure comparison module connected with the measuring microphone. The sound emitted from the noise source is sealed within the enclosed cavity. The test panel can cooperate with the noise reduction headphone to form a coupling cavity in the test. The test panel has a sound guiding hole in the common part with the enclosed cavity for transmitting the sound of the noise source into the interior of the coupling cavity. The test panel also has a mounting hole, and the measuring microphone is mounted on the mourning hole towards the direction of the coupling cavity. The measuring microphone records noise signals before and after the noise reduction function of the noise reduction headphone is activated. The measure comparison module receives the signals recorded these two times by the measuring microphone and performs comparison processing to obtain noise reduction amount of the noise reduction headphone. The technical solution of the present invention solves the problem of noise pollution caused by high-power external noise sources to the surrounding environment during the test process of noise reduction amount of the headphone, meanwhile, no special shielding room is required, and the requirement on test environment is relieved. | 05-29-2014 |
20140153726 | Communication of Diagnostic Information from Satellite to Host - A vehicle sound system includes a subwoofer system having a subwoofer, a satellite amplifier for driving the subwoofer, a host amplifier for receiving an audio signal, a noise management processing unit for providing, to the host amplifier, information to be used for achieving a desired audio environment, a sensor for providing information to the noise management processing unit concerning the ambient audio environment, a control line between the satellite amplifier and the host amplifier for transmission of control signals to the satellite amplifier, and a signal line between the satellite amplifier and the host amplifier for transmission of audio signals to the satellite amplifier, the satellite controller being configured to cause a diagnostic signal to be placed on the control line, the diagnostic signal being indicative of an operating condition of the subwoofer system. | 06-05-2014 |
20140153727 | METHOD AND APPARATUS FOR PERSONALIZED AUDIO VIRTUALIZATION - A method and apparatus may be used to perform personalized audio virtualization. The apparatus may include a speaker, a headphone (over-the-ear, on-ear, or in-ear), a microphone, a computer, a mobile device, a home theater receiver, a television, a Blu-ray (BD) player, a compact disc (CD) player, a digital media player, or the like. The apparatus may be configured to receive an audio signal, scale the audio signal, and perform a convolution and reverberation on the scaled audio signal to produce a convolved audio signal. The apparatus may be configured to filter the convolved audio signal and process the filtered audio signal for output. | 06-05-2014 |
20140153728 | DELAY MEASUREMENT APPARATUS AND DELAY MEASUREMENT METHOD FOR NETWORK MUSIC SESSION - In this system, a terminal A retrieves terminal's input delay time Tia from input of an audio signal to start of transmission of the audio signal, transmission delay time Tn from the start of transmission of the audio signal to reception of the audio signal by a partner terminal B, partner's reception buffering delay time Tbfb from reception of the audio signal to output of the audio signal by a reception buffer portion BFb of the partner terminal B, and partner's output delay time Tob from input of the audio signal to output of the audio signal by an audio reproduction portion DRob of the partner terminal B. The terminal A then sums up these delay times to determine input/output delay time Ttab from the input of the audio signal by the terminal A to the output of the audio signal by the audio reproduction portion DRob of the partner terminal B. | 06-05-2014 |
20140169573 | AUDIO FORMAT - Mechanisms for obtaining an audio signal and information relating to the recording conditions of the audio signal are provided, the method comprising: obtaining an audio signal, wherein the audio signal is a voltage signal representation of sound, the voltage signal having been converted from a pressure signal; obtaining first information indicative of at least one objective feature and/or at least one perceptual feature associated with the conversion of the pressure signal into the audio signal in the form of a voltage signal representation; storing the audio signal, the first information, and second information identifying a relationship between the audio signal and the first information; determining an error adjustment for adjusting the audio signal based on the obtained information; applying the error adjustment to the audio signal to create an error-adjusted audio signal; and obtaining an audio signal and information relating to the recording conditions of the audio signal. | 06-19-2014 |
20140177852 | DEVICE FOR MEASURING SOUND WAVES EMITTED BY SOUND-EMITTING DEVICE - A sound-measuring device for measuring average amplitude of sound waves of a sound-emitting device is provided. The sound-measuring device includes an integration circuit, a laser diode, a driver configured to drive the laser diode to emit a laser beam, a storage unit, a light sensing unit, a first optical fiber and a second optical fiber aligned with the first optical fiber. The first optical fiber is placed on the sound insulating film. The sound waves of the sound-emitting device causes the insulating film to vibrate thereby the vibration of the insulating film causing misalignment between the first optical fiber and the second optical fiber. The integration circuit calculates an insertion loss value between the portion of the laser beam and the laser beam from the laser diode, and determines average amplitudes of the sound waves according to the table and the calculated insertion loss value. | 06-26-2014 |
20140177853 | SOUND PROCESSING DEVICE, SOUND PROCESSING METHOD, AND PROGRAM - There is provided a sound processing device including a background noise estimation unit configured to estimate a background noise of an input signal, a noise suppression unit configured to suppress the background noise of the input signal based on a result obtained by estimating the background noise, a feature quantity calculation unit configured to calculate a feature quantity based on the input signal in which the background noise is suppressed, and a consonant detection unit configured to detect a consonant from the input signal based on the feature quantity. | 06-26-2014 |
20140185816 | APPARATUS AND METHOD FOR PROCESSING AUDIO SIGNAL - An audio signal processing apparatus and method for processing an audio signal are provided. The audio signal processing apparatus includes a signal detector configured to detect a long-term envelope and a short-term envelope of a lower range signal of an input signal, and a controller configured to control a gain in a beat section of the input signal, wherein the beat section is determined based on the detected long-term envelope and the short-term envelope of the lower range signal. | 07-03-2014 |
20140192991 | METHOD FOR SELF-CALIBRATION OF A SET OF SENSORS, IN PARTICULAR MICROPHONES, AND CORRESPONDING SYSTEM - A method for self-calibration of the position of a set of sensors of acoustic signals includes:
| 07-10-2014 |
20140205104 | INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, AND PROGRAM - There is provided an information processing apparatus including a detection unit configured to detect a usage state of a sound output unit, and a signal processing unit configured to tune sound signals to be outputted to the sound output unit, based on the usage state of the sound output unit. | 07-24-2014 |
20140219463 | APPARATUS, SYSTEMS AND METHODS FOR INAUDIBLY IDENTIFYING AN AUDIO ACCESSORY USING SPECTRAL SHAPING - A method for identifying an accessory coupled to an electronic device. The method includes applying at least one detection pulse to the audio accessory, each detection pulse being spectrally shaped to be generally inaudible to a human user, receiving at least one response signal corresponding to each detection pulse that is indicative of the impedance of the accessory, and based on the impedance, identifying the accessory. | 08-07-2014 |
20140219464 | ALWAYS ON HEADWEAR RECORDING SYSTEM - An analysis system has at least one monitoring assembly that includes at least one microphone to monitor an acoustic field proximate the monitoring assembly. The at least one microphone produces at least one microphone signal responsive to the acoustic field. The analysis system further includes a data storage device configured to buffer the at least one microphone signal and an audio analysis system configured to analyze a content of the data storage device where the audio analysis system is configured to analyze the content of the buffer to process at least a sound into a response or action. | 08-07-2014 |
20140233741 | SYSTEM AND METHOD OF DETECTING A PLUG-IN TYPE BASED ON IMPEDANCE COMPARISON - A particular method includes determining, at an electronic device having a plug-in port, a plug-in type of an accessory connected to the plug-in port based on a comparison of an alternating current (AC) impedance at the plug-in port to a direct current (DC) impedance at the plug-in port. | 08-21-2014 |
20140241535 | APPARATUS, SYSTEMS AND METHODS FOR DETECTING INSERTION OR REMOVAL OF AN AUDIO ACCESSORY FROM AN ELECTRONIC DEVICE - According to one aspect, an electronic device for detecting an audio accessory. The electronic device includes an audio jack having at least two detection terminals. The detection terminals are spaced apart and positioned within a socket of the audio jack so when an audio plug of the accessory is inserted into the socket of the audio jack, the detection terminals will be shorted. The presence of a short between the detection terminals is indicative that the audio accessory is present. | 08-28-2014 |
20140247948 | METHOD AND DEVICE FOR PERSONALIZED HEARING - An electronic audio device for use with at least one earpiece, the earpiece having a microphone and a speaker located therein includes circuitry coupled to the microphone and speaker and a processor to evaluate a seal quality of the earpiece to a user's ear based on seal quality measurements made while driving or exciting a signal into the speaker located in the earpiece and then to adjust the circuitry operatively coupled to the microphone and speaker according to the evaluated seal quality. Other embodiments are disclosed. | 09-04-2014 |
20140254809 | Audio Accessory Circuitry and Method Compatible With Both MSFT Mode and Digital Communication Mode - An audio accessory key detection system ( | 09-11-2014 |
20140254810 | MICROPHONE SYSTEM TO CONTROL INTERMODULATION PRODUCTS - In a particular embodiment, a system includes a controller configured to receive proximity data associated with a first device of a plurality of devices. The proximity data indicates a relative location of each of one or more devices of the plurality of devices with respect to the first device. The controller is further configured to determine an estimated intermodulation product. The estimated intermodulation product is calculated based on the proximity data. The controller is further configured to initiate transmission of one or more commands, based on the estimated intermodulation product, to at least one device of the plurality of devices. | 09-11-2014 |
20140254811 | SOUND REPRODUCTION DEVICE - Provided is a sound reproduction device including: a first loudspeaker having directionality utilizing a parametric effect; a second loudspeaker having directionality broader than that of the first loudspeaker; an orientation adjustment unit configured to change an orientation of the first loudspeaker; an information obtaining device configured to obtain positional information of a listener; and a drive controller electrically connected to the first loudspeaker, the second loudspeaker, the orientation adjustment unit, and the information obtaining device, and configured to control the orientation of the first loudspeaker based on the positional information of the listener. | 09-11-2014 |
20140254812 | METHOD AND APPARATUS TO EVALUATE AUDIO EQUIPMENT VIA FILTER BANKS FOR DYNAMIC DISTORTIONS AND OR DIFFERENTIAL PHASE AND FREQUENCY MODULATION EFFECTS - A testing method or apparatus utilizes filter banks to measure time varying or dynamic harmonic distortion or intermodulation distortion from a device. With a stairstep or arbitrary signal and filter banks, Nth order harmonic and or intermodulation distortion is measured via the filter banks at different offsets provided by an arbitrary low frequency signal. An amplifier with crossover distortion will show increased harmonic and or intermodulation distortion near the zero crossing while providing less distortion in other portions of the transfer curve of the amplifier. One or more distortion signals from the device (e.g., audio device) may be measured for a phase and or frequency modulation effect. | 09-11-2014 |
20140270201 | AUDIO ACCESSORY WITH INTERNAL CLOCK - An audio accessory is configured to receive and store meta data from a media player, including the media asset identification and current play position. The audio accessory is configured to independently track the current play position of the media asset. When the audio accessory is disconnected from the first media player the audio accessory is configured to store the independently tracked current play position in memory. After the audio accessory is subsequently connected to a second media player, the second media player may retrieve the meta data from the audio accessory and use it to load the media asset on the second player and resume play from the stored current play position. | 09-18-2014 |
20140270202 | Apparatus with Adaptive Audio Adjustment Based on Surface Proximity, Surface Type and Motion - A method includes detecting a surface in proximity to a mobile device using sensor data and determining an acoustic reflectivity or acoustic absorptivity of the surface using the sensor data. The method may further compensate for the acoustic reflectivity or acoustic absorptivity by controlling a configurable group of microphones of the mobile device. Compensating for the surface acoustic reflectivity or acoustic absorptivity may include beamforming the outputs of the configurable group of microphones to obtain one of an omnidirectional beamform pattern or a directional beamform pattern. An apparatus that performs the method include a configurable group of microphones, a signal conditioner, and a surface compensator. The surface compensator is operative to detect a surface in proximity to the apparatus and determine a surface acoustic reflectivity or acoustic absorptivity. | 09-18-2014 |
20140270203 | Method and apparatus for determining digital media audibility - A method of determining the audio level of a network partner media player, wherein, when media playing on a terminal media player running on a terminal originates from an external media source, the method comprises obtaining activity information from the terminal, obtaining activity information from the terminal media player, obtaining activity information from an external source media player associated with the external media source, and analysing the activity information from the terminal, the activity information from the terminal media player, the activity information from the external media source media player, whereby the audio level of the network partner media player is determined. | 09-18-2014 |
20140270204 | RESET CIRCUIT FOR MEMS CAPACITIVE MICROPHONES - A method of initiating a reset sequence for a MEMS capacitive microphone. The method includes monitoring an output of a microphone and detecting a mute condition in the output of the microphone indicative of a fault condition. The method also includes activating a timing circuit. The timing circuit is configured to indicate when a certain time period since the initiation of the timing circuit has elapsed. Upon expiration of the time period indicated by the timing circuit, a microphone reset sequence is initiated. | 09-18-2014 |
20140270205 | APPARATUSES, SYSTEMS AND METHODS FOR DETECTING CORONA - Apparatuses, systems and methods for detecting corona using audio data are disclosed. A method of processing audio data to detect corona includes determining an indicator of energy at a substantially fundamental frequency in the audio data, determining an indicator of the energy at a plurality of harmonic frequencies in the audio data, determining an indicator of the noise energy in the audio data, determining a comparison indicator of the noise energy relative to the energy at the harmonic frequencies, determining a masking indicator having thresholds for each of the harmonics relative to the fundamental frequency, and determining a corona detection indicator. An apparatus for detecting corona includes a memory, an audio detector configured to obtain the audio data near an electrical conductor in an AC system, and a processor to process the audio data, fundamental and harmonic frequencies of the audio data and their corresponding thresholds to detect corona. | 09-18-2014 |
20140270206 | ACOUSTIC TRANSMISSIVITY IMPAIRMENT DETERMINING METHOD AND APPARATUS - A method of determining an extent of impairment of acoustic transmissivity of a structural arrangement exposing a microphone, the method including receiving first and second responses generated by the microphone responsive to received acoustic energy and ascertaining the extent of impairment based on the first and second responses. | 09-18-2014 |
20140286495 | ACOUSTIC OUTPUT APPARATUS - The acoustic output apparatus includes an output converter that converts an input signal into a plurality of converted signals and outputs the converted signals. The acoustic output apparatus includes a plurality of amplifiers that are provided in a one-to-one relationship with the plurality of converted signals and controlled by the output converter and each of which outputs an output signal obtained by amplifying the converted signal input thereto from the output converter to a load connected to an output thereof. The acoustic output apparatus includes a detector that outputs a detection result to the output converter if the detector detects a failure at the output of any of the plurality of amplifiers. | 09-25-2014 |
20140294184 | DETECTION CIRCUIT - A detection circuit is disclosed, in which the first and second pins are arranged to connect to at least one signal transduction area of the plug, such that a voltage division circuit generates first and second division voltages accordingly. A processing unit determines the signal transduction area(s) connected by the first and second pins by the first and second division voltages. When detecting that the first and second pins separately connect the microphone area and the ground area of the plug, the processing unit controls a microphone switch to connect the first pin to the microphone output node and the second pin to the ground. When detecting that the first pin and the second pin separately connect the ground area and the microphone area, the processing unit controls the microphone switch to connect the first pin to the ground and the second pin to the microphone output node. | 10-02-2014 |
20140294185 | Adaptive High Fidelity Reproduction System for Object-Based Audio - Object-based audio is adaptively associated with speakers, depending on the speaker configuration that is present. Each speaker it receives an audio assignment based on its individual spectral characteristics. As more speakers are added, content is adaptively associated with that you speaker, and taken away from the previous. | 10-02-2014 |
20140307880 | MONITOR AN EVENT THAT PRODUCES A NOISE RECEIVED BY A MICROPHONE - A computing system including a component to perform a function and generates a noise. A microphone to receive an input including the noise. The computing system can monitor a component for an event that produces a noise. | 10-16-2014 |
20140314239 | ORIENTATION BASED DYNAMIC AUDIO CONTROL - Control of audio output characteristics of the device is contemplated. The control may correspond with modifying the audio output characteristics according to an orientation of the device or other positional relationships defined between the device, the output from the device and/or speaker positioning that may vary as a result of user manipulation or an environment within which the device is being used. | 10-23-2014 |
20140321655 | Sensitivity Calibration Method and Audio Device - Embodiments of the present invention disclose a sensitivity calibration method and an audio device. The method of the present invention includes determining whether a first signal captured in a current frame by a primary capture module is a circuit noise. When the first signal is not a circuit noise, if the first signal has a stationary noise characteristic, a first calibration gain is determined according to the first signal and a second signal captured in the current frame by a secondary capture module. The second signal is calibrated according to the first calibration gain, so that sensitivity of the primary capture module is consistent with sensitivity of the secondary capture module. | 10-30-2014 |
20140321656 | APPARATUS AND METHOD FOR OUTPUTTING AUDIO - An audio output apparatus and a method are provided, which includes calculating a temperature value of a voice coil of the audio output apparatus using a heat transfer model algorithm, in response to power being supplied to the voice coil; adjusting an output level of an audio signal by determining a gain value to adjust the output level of the audio signal according to the calculated voice coil temperature value, and outputting the audio signal with the adjusted output level. | 10-30-2014 |
20140328488 | Electronic Device With Wireless Power Control System - An electronic device may include wireless circuitry that is configured to transmit wireless signals during operation. A maximum transmit power level may be established that serves as a cap on how much power is transmitted from the electronic device. Adjustments may be made to the maximum transmit power level in real time based on sensor signals and other information on the operating state of the electronic device. The sensor signals may include motion signals from an accelerometer. The sensor signals may also include ultrasonic sound detected by a microphone. Device orientation data may be used by the device to select whether to measure the ultrasonic sound using a front facing or rear facing microphone. Maximum transmit power level may also be adjusted based on whether or not sound is playing through an ear speaker in the device. | 11-06-2014 |
20140328489 | MICROPHONE TEST STAND FOR ACOUSTIC TESTING - The present invention relates to a microphone test stand comprising a slide assembly with a microphone holder surrounded by a first acoustic sealing member. The slide assembly is movable in a first direction between a first position outside an acoustical chamber with an exposed state of the microphone holder and a second position inside the acoustical chamber in a shielded state of the microphone holder. An electrical connector comprises a set of electrical connector terminals which is connectable to a set of microphone terminals for receipt of a microphone response signal from a microphone assembly arranged in the microphone holder in response to a test sound pressure in the acoustical chamber. | 11-06-2014 |
20140348334 | PORTABLE TERMINAL AND METHOD FOR DETECTING EARPHONE CONNECTION - A portable terminal and a method for detecting an earphone connection are provided. The method includes detecting a connection of earphones; detecting and analyzing a sound input through the connected earphones; and determining whether a microphone is installed in the earphones by comparing an analysis result with a first predetermined threshold. | 11-27-2014 |
20140355774 | METHOD AND APPARATUS TO EVALUATE AUDIO EQUIPMENT VIA FILTER BANKS - A testing method or apparatus utilizes filter banks to measure time varying or dynamic harmonic distortion or intermodulation distortion. With a stairstep signal and filter banks, Nth order harmonic and or intermodulation distortion is measured via the filter banks at different offsets provided by an arbitrary low frequency signal. An amplifier with crossover distortion will show increased harmonic and or intermodulation distortion near the zero crossing while providing less distortion in other portions of the transfer curve of the amplifier. | 12-04-2014 |
20140363001 | METHOD FOR CALIBRATING PERFORMANCE OF SMALL ARRAY MICROPHONES - A method for calibrating performance of a small array microphone is provided. The small array microphone includes at least two microphones. The method includes: measuring parameters of the microphones; recording the parameters in a storage media; and calibrating acoustic performance of the array microphone according to the parameters recorded in the storage media. | 12-11-2014 |
20140363002 | INDICATION OF QUALITY FOR PLACEMENT OF BONE CONDUCTION TRANSDUCERS - Methods and systems are provided for generating quality indications of bone conduction, in which bone conduction element(s) may be used to input and/or output signals when in contact with a user. A bone conduction sensor may be used to obtain bone conduction related measurement(s), relating to the bone conduction element(s) and/or operations thereof. The bone conduction measurement(s) may be processed, such as to determine or estimate quality of attachment and/or performance of the bone conduction elements. Quality indication(s) may then be generated based on the assessed quality of bone conduction, and may be configured for presentation to a user. | 12-11-2014 |
20140363003 | INDICATION OF QUALITY FOR PLACEMENT OF BONE CONDUCTION TRANSDUCERS - Methods and systems are provided for generating quality indications of bone conduction, in which bone conduction element(s) may be used to input and/or output signals when in contact with a user. A bone conduction sensor may be used to obtain bone conduction related measurement(s), relating to the bone conduction element(s) and/or operations thereof. The bone conduction measurement(s) may be processed, such as to determine or estimate quality of attachment and/or performance of the bone conduction elements. Quality indication(s) may then be generated based on the assessed quality of bone conduction, and may be configured for presentation to a user. | 12-11-2014 |
20140363004 | HEADSET APPARATUS REGISTERING MOVEMENT IN THE HOUSING - An apparatus comprising: a housing containing a speaker for delivering sound waves; and a sensing element for detecting air movement in the housing and further providing a control signal based on the detected air movement. The control signal is sent to a host apparatus. A user interface operation dependent on the control signal is preformed, such as filtering, muting or amplifying an input audio signal to the speaker or switching off the host apparatus. The housing comprises compressible material such that when the compressible material is displaced air movement in the housing is detected by the sensing element. | 12-11-2014 |
20140363005 | Receiver Intelligibility Enhancement System - Embodiments of the invention provide a communication device and methods for enhancing audio signals. A first audio signal buffer and a second audio signal buffer are acquired. Thereafter, the second audio signal is processed based on the linear predictive coding coefficients and gains based on mean noise power of the first audio signal to generate an enhanced second audio signal. | 12-11-2014 |
20140369511 | SELF CALIBRATING MULTI-ELEMENT DIPOLE MICROPHONE - A self calibrating dipole microphone formed from two omni-directional acoustic sensors. The microphone includes a sound source acoustically coupled to the acoustic sensors and a processor. The sound source is excited with a test signal, exposing the acoustic sensors to acoustic calibration signals. The responses of the acoustic sensors to the calibration signals are compared by the processor, and one or more correction factors determined. Digital filter coefficients are calculated based on the one or more correction factors, and applied to the output signals of the acoustic sensors to compensate for differences in the sensitivities of the acoustic sensors. The filtered signals provide acoustic sensor outputs having matching responses, which are subtractively combined to form the dipole microphone output. | 12-18-2014 |
20150010157 | MICROPHONE TEST PROCEDURE - In one embodiment, the invention is a microphone system with an internal test circuit. The system includes a microphone having a housing with an acoustic port, a first transducer, a second transducer, a controller, and a current source. The system also includes an acoustic assembly with a cover and an acoustic pressure source positioned in the cover. When the acoustic assembly is positioned over the acoustic port, an acoustic chamber is formed, and a signal can be applied to the acoustic pressure source such that a first set of measurements can be taken. The acoustic assembly can be removed and replaced with an acoustic cover to take a second set of measurements. Based on the first and second measurements, sensitivities of the first and second transducers can be determined. In another embodiment, the invention provides a method for calibrating the sensitivity of a microphone. | 01-08-2015 |
20150010158 | HEADSET WITH FIT DETECTION SYSTEM - Headphones with acoustically resistant ear cups, an external noise sensor mounted thereto that monitors ambient noise, and internal sensors to monitor noise within each ear cup are disclosed. A processing system monitors the external and interior sound detected by the sensors and compares the level inside the ear cups with the detected level of ambient noise. It activates a transducer such as a vibrator, buzzer, or light as needed to indicate when the level within the ear cups has exceeded the predetermined criteria thereby indicating improper fit of the headphones. Alternative embodiments include wirelessly communicating the collected data to an auxiliary computer for remote data collection, storage and monitoring. The headphones may also provide a sound dosimeter; bandpass filtering; automatic noise reduction with feed forward and/or feed back; wireless voice and data communication; and a voice activated switch, all using elements of the headphone fit detection circuitry. | 01-08-2015 |
20150016619 | APPARATUS FOR DETECTING TYPE OF AUDIO INTERFACE - An apparatus for detecting a type of an audio interface is disclosed. The apparatus comprises: an audio interface, comprising a pin | 01-15-2015 |
20150023508 | APPARATUS AND METHOD FOR AUTOMATIC AUDIO SYSTEM AND RECOVERY FROM UNEXPECTED BEHAVIORS - An automatic audio recovery system in a mobile device is provided. The system includes one or more status generators and an audio path recovery handler. The one or more status generators are configured to monitor operation of audio path elements within the mobile device, and are configured to detect and report one or more abnormal audio operations to an audio status monitor, where, responsive to one or more reports corresponding to the one or more abnormal audio operations, the audio status monitor requests automatic recovery of the audio path elements. The audio path recovery handler is configured to receive an automatic recovery request from the audio status monitor, and is configured to responsively direct reset elements corresponding to the audio path elements to automatically initialize the audio path elements to a stable state. | 01-22-2015 |
20150023509 | APPARATUS AND METHOD FOR PERFORMING AN AUDIO MEASUREMENT SWEEP - In at least one embodiment, an apparatus for performing an audio measurement is provided. The apparatus includes a controller that is programmed to generate an audio test signal based on a first frequency range that comprises a first noise spectrum, a second frequency range that comprises a second noise spectrum, and a third frequency range that comprises a third noise spectrum and to transmit the audio test signal to an audio device that generates an audio response signal responsive to the audio test signal. The controller is further programmed to receive the audio response signal and to determine audio related characteristics for the audio device in response to the audio response signal. | 01-22-2015 |
20150023510 | Sound Processing System and Sound Processing Device - Provided is a sound processing system and a sound processing device, which are capable of detecting attachment/detachment of an earphone microphone without adding a signal wire for detection. The sound processing system includes an earphone microphone and a sound processing device. The earphone microphone includes a speaker and a microphone. The speaker outputs an output sound. The microphone outputs a collected sound signal corresponding to collected sounds, and collects echo sound of the output sound echoed in an external acoustic meatus in a state where the earphone microphone is placed in the external acoustic meatus. The sound processing device includes an attachment determinator, which determines whether or not the earphone microphone is placed in the external acoustic meatus based on a variation of the collected sound signal. | 01-22-2015 |
20150023511 | METHOD AND APPARATUS TO EVALUATE AUDIO EQUIPMENT VIA AT LEAST ONE FILTER FOR DYNAMIC DISTORTIONS AND OR DIFFERENTIAL PHASE AND OR FREQUENCY MODULATION EFFECTS - A testing method or apparatus utilizes a filter or modifier to measure time varying or dynamic harmonic, intermodulation, cross modulation, and or N-Beat or triple distortion from a device. With a stairstep or arbitrary signal and another signal, Nth order harmonic, cross modulation, triple beat, N-Beat, and or intermodulation distortion is measured via the filter or modifier at different offsets or time provided by an arbitrary low frequency signal. For example, an amplifier with crossover distortion will show increased (e.g., time varying) harmonic, cross modulation, triple beat, and or intermodulation distortion near the zero crossing while providing less distortion in other portions of the transfer curve of the amplifier. One or more distortion signals from the device (e.g., audio device) may be measured for a phase and or frequency modulation effect. | 01-22-2015 |
20150030164 | MICROPHONE CALIBRATION - The disclosed apparatus, systems, and methods provide a calibration technique for calibrating a set of microphones. The disclosed calibration technique is configured to calibrate the microphones with respect to a reference microphone and can be used in actual operation rather than a testing environment. The disclosed calibration technique can estimate both the magnitude calibration factor for compensating magnitude sensitivity variations and the relative phase error for compensating phase delay variations. In addition, the disclosed calibration technique can be used even when multiple acoustic sources are present. The disclosed technique is particularly well suited to calibrating a set of microphones that are omnidirectional and sufficiently close to one another. | 01-29-2015 |
20150030165 | SYSTEM AND METHOD FOR AUDIO ENHANCEMENT OF A CONSUMER ELECTRONICS DEVICE - Systems and methods for enhancing the audio experience on a consumer electronic device are disclosed. More particularly systems and methods for optimizing the audio performance of individual consumer electronic devices as part of a manufacturing process and/or retail experience are disclosed. A system for enhancing the audio performance of a consumer electronic device including a parametrically configurable processing block is disclosed. | 01-29-2015 |
20150030166 | APPARATUS, SYSTEMS, AND METHODS FOR CALIBRATION OF MICROPHONES - The disclosed apparatus, systems, and methods provide a calibration technique for calibrating a set of microphones. The disclosed calibration technique is configured to calibrate the microphones with respect to a reference microphone and can be used in actual operation rather than a testing environment. The disclosed calibration technique can estimate both the magnitude calibration factor for compensating magnitude sensitivity variations and the relative phase error for compensating phase delay variations. In addition, the disclosed calibration technique can be used even when multiple acoustic sources are present. The disclosed technique is particularly well suited to calibrating a set of microphones that are omnidirectional and sufficiently close to one another. | 01-29-2015 |
20150043738 | SYSTEM FOR TUNING AUDIO PROCESSING FEATURES AND METHOD THEREOF - An audio tuning system including: an interface configured to provide a test signal to a reference device and to a target device; and a controller configured to acquire a result of audio processing in response to the test signal from the reference device and a result of audio processing in response to the test signal from the target device; compare the results; and adjust an audio processing characteristic value of the target device to match that of the reference device based on a result of the comparison. The audio tuning system may automatically tune the audio characteristic of the target device to match the reference device. | 02-12-2015 |
20150049875 | PERIODOGRAM-BASED RADIO SIGNAL DETECTION METHOD - A periodogram-based wireless microphone signal detection method, which solves the problem of incapability of distinguishing wireless microphone signal from narrow-band interference, includes: acquiring a time-domain digital signal for detection through antenna module, RF front-end module, ADC module and time-domain signal preprocessing module; and performing detection of microphone signal in frequency domain, that is, calculating an average value of periodogram of M segments of the time-domain digital signal for detection, shifting the average value to obtain a shifted vector, estimating a mean and a covariance matrix of the shifted vector, locating a maximum point of the vector, and taking several points on each side of the point as a center to form an information vector; calculating a decision statistical quantity of the information vector using the decision theory, simulating or calculating a threshold in a predefined method, and deciding the signal is narrow-band interference if the decision statistical quantity is less than the threshold, otherwise the signal is wireless microphone signal. | 02-19-2015 |
20150055785 | MEDIA/COMMUNICATIONS SYSTEM | 02-26-2015 |
20150071450 | SYSTEMS AND METHODS FOR MONITORING SOUND DURING AN IN-BUILDING EMERGENCY - A system for monitoring a building having one or more microphones coupled to a telephone includes a detector configured to detect a triggering event within the building and transmit an activating signal when the triggering event is detected, and a control module configured to receive the activating signal from the detector. The control module is programmed to activate at least one of the one or more microphones to monitor sound when the activating signal is received. | 03-12-2015 |
20150078557 | AUDIO SYSTEM - A wireless headset mode and audio mode selectable audio system includes a major audio device, a wireless audio device, and a wireless headset device. The major audio device includes an audio input selection unit, a digital signal processing unit, a speaker driving unit, a wireless transceving unit, a control unit, and a speaker. The wireless audio device includes a first wireless transceving unit, a first control unit, a first speaker driving unit, and a first speaker. The wireless headset device includes a second wireless transceving unit, a second speaker driving unit, a second control unit, and a second speaker. When the wireless headset is turned on, a signal will be sent to the major audio device to turn off the sound output of the speaker of the major audio device and the first speaker of the wireless audio device, thus entering a mute mode. | 03-19-2015 |
20150092946 | SUPERVISION OF I2S DIGIITAL AUDIO BUS - An approach for supervision of I2S bus audio paths employing a signal derived from a word clock signal of the I2S bus. | 04-02-2015 |
20150092947 | Coordinator Device for Paired or Consolidated Players - Embodiments described herein involve selecting a coordinator device for multichannel playback by a bonded zone. The bonded zone may be configured such that playback devices in the bonded zone may each be configured to render different components, such as a right channel component or a left channel component of media content being rendered in synchrony by the bonded zone. Selecting the coordinator device for the bonded zone may involve analyzing a wireless interface performance metric of a first playback device in the bonded zone, receiving a wireless interface performance metric of a second playback device in the bonded zone, comparing the wireless interface performance metrics of the two playback devices, selecting one of the two playback devices as the coordinator device, and causing the selected playback device to become the coordinator, or “primary” player of the bonded zone. | 04-02-2015 |
20150092948 | ACOUSTIC SEALING ANALYSIS SYSTEM - A test signal emitted by an earpiece is compared against the acoustic signal to determine if a sealing section of the earpiece is sealed properly. The degree of acoustic sealing is used to adjust the attenuation level of a sealing section of the earpiece or alert the user that the sealing section of the seal status. | 04-02-2015 |
20150098576 | Audio Distribution - A method and device for distributing audio data to a number of audio playback devices that are connected to a network. One or more network-related performance criteria of a plurality of the audio playback devices are compared. Based on the comparison, at least one of the audio playback devices is designated as a master device and at least one other of the audio playback devices is designated as a slave device. The master device then controls the distribution of audio data to one or more of the slave devices. | 04-09-2015 |
20150098577 | SYSTEMS AND METHODS FOR IDENTIFYING NOISES - An audio controller is provided which includes an audio transducer interface that is capable of receiving audio signals from one or more audio transducers each associated with a channel. A channel selector is configured to selectively connect the audio signals to an output of the audio controller. A tone detector receives a tone from a mobile device and the tone is associated with a selected channel or indicating a channel change. The tone causes the channel selector to output audio associated with a channel. A listening device interface transmits the audio output from the channel selector to a listening device. The audio signal is presented to a mobile device, such as a smartphone or table device. Audio signal received by mobile device may be displayed in graphical form, recorded, or processed and one or more modification may be made to the audio signal such as equalization or an offset. | 04-09-2015 |
20150110280 | Wearable Speaker User Detection - Apparatus having corresponding methods and computer-readable media comprise: a speaker interface configured to provide audio to a wearable speaker of a headset and to receive speaker return signals generated by from the wearable speaker of the headset; and a user detection module configured to determine a user-related parameter based on the speaker return signals received by the speaker interface from the wearable speaker of the headset. | 04-23-2015 |
20150124977 | HEADSET IN-USE DETECTOR - A headset in-use detector is disclosed. In an exemplary embodiment, an apparatus includes a detector configured to receive a sound signal and an echo signal and generate a detection signal, and a controller configured to determine whether or not a headset is in-use based on the detection signal. | 05-07-2015 |
20150124978 | HUMAN LIKE EAR SIMULATOR - The present invention relates to an ear simulator representing an average acoustic ear drum impedance of ears of a population of humans. Another aspect of the invention relates to an ear simulator assembly comprising an ear simulator representing average acoustic ear drum impedance and a detachable ear canal simulator to provide an ear simulator assembly representing an acoustic impedance of a human ear canal or average human canals of the population. | 05-07-2015 |
20150124979 | IMPEDANCE DETECTING DEVICE AND METHOD - The present invention discloses an impedance detecting device capable of detecting the impedance value of a load, comprising: an AC signal generating circuit for generating an AC signal; an output buffer for generating an output voltage and an output current according to the AC signal and the impedance value of the load; a current mirror for generating a mirror current according to the output current; a detection impedance for generating a detection voltage according to the mirror current; a comparing circuit for generating a comparison result by comparing the output voltage with the detection voltage; and a control circuit for adjusting at least one of a current ratio of the mirror current to the output current and the impedance value of the detection impedance according to the comparison result until the comparison result has satisfied a predetermined requirement. | 05-07-2015 |
20150124980 | DETECTION OF A MICROPHONE - An apparatus comprising: an input configured to receive at least two microphone signals associated with at least one acoustic source; an audio source determiner configured to determine from at least part of the at least two microphone signals at least one audio source based on the at least one acoustic source; an audio source direction determiner configured to determine at least one direction associated with the determined at least one audio source; a calibrator configured to calibrate at least one of the at least two microphone signals based on the at least one direction. | 05-07-2015 |
20150124981 | INTERFACE FOR EXPANDING THE DYNAMIC INTERVAL OF AN INPUT SIGNAL OF AN ACOUSTIC TRANSDUCER - An interface for expanding a signal starting from a first sensing signal and a second sensing signal, wherein a receiving intensity measuring element generates an intensity signal; and a selector is controlled to select each time the first sensing signal, the second sensing signal, or a combined signal deriving from a weighted combination of these signals. The selector uses a plurality of thresholds variable as a function of the intensity signal. | 05-07-2015 |
20150146875 | DETERMINING THE TEMPERATURE OF A LOUDSPEAKER VOICE COIL - A method for determining the temperature of a loudspeaker voice coil comprising the steps of:
| 05-28-2015 |
20150302858 | 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. | 10-22-2015 |
20150304777 | TRANSDUCER AND METHOD OF CONTROLLING THE SAME - According to embodiments of the present invention, a transducer is provided. The transducer includes a substrate, and a diaphragm suspended from the substrate, wherein the diaphragm is displaceable in response to an acoustic signal impinging on the diaphragm, wherein the transducer is configured, in a first mode of operation, to determine a direction of the acoustic signal based on a first displacement of the diaphragm in the first mode of operation, and to decide to accept or reject the acoustic signal based on at least one predetermined parameter and the determined direction of the acoustic signal, and in a second mode of operation, to sense the acoustic signal based on a second displacement of the diaphragm in the second mode of operation if the acoustic signal is accepted in the first mode of operation. | 10-22-2015 |
20150304786 | DETECTION OF A MICROPHONE - An apparatus comprising: a detector configured to determine at least one microphone is impaired by analysing at least one audio signal from the at least one microphone; and an controller configured to determine an indicator based on the determination of the impairment of the at least one microphone; and configured to apply the indicator based on the determination of the impairment of the at least one microphone, such that the at least one audio signal is processed based on the indicator. | 10-22-2015 |
20150312691 | AUTOMATIC MICROPHONE SWITCHING - A method comprising: initiating a sound capture event within an apparatus; receiving at least two audio signals during the sound capture event, wherein the at least two audio signals are provided by at least two microphones associated with the apparatus; determining at least one microphone operational parameter based on the received at least two audio signals; and controlling the sound capture event such that at least one of the at least two audio signals is processed based on the at least one microphone operational parameter. | 10-29-2015 |
20150319547 | MULTIPLE BARRIER TEST FIXTURE AND METHOD OF TESTING USING THE SAME - A test fixture includes a first barrier structure, a second barrier structure, a gap between the first barrier structure and the second barrier structure, at least one isolator disposed in the gap that is configured to couple the first barrier structure to the second barrier structure, and a test bed disposed within the second barrier structure and configured to have acoustic devices coupled thereto. The first barrier structure, the second barrier structure, the gap, and the at least one isolator act and are effective to dampen vibrations of the fixture and provide an acoustic isolation for the acoustic devices at the test bed from acoustic or vibrational energy originating from outside the fixture. | 11-05-2015 |
20150332705 | METHOD, APPARATUS AND SYSTEM FOR MICROPHONE ARRAY CALIBRATION - A method, apparatus and system for microphone array calibration include recording audio using at least two microphones, which comprise an array of microphones, using a target microphone of the array of microphones, determining an attenuation factor for audio originating from respective locations of other microphones of the array of microphones, using a target microphone of the array of microphones, determining a delay factor for audio originating from respective locations of other microphones of the array of microphones and implementing the determined attenuation factor and delay factor for removing audio originating from respective locations of the other microphones of the array of microphones from an audio signal captured by the target microphone. The method, apparatus and system then further include removing audio originating from respective locations of the other microphones of the array of microphones from an audio signal captured by the target microphone using beam-forming techniques. | 11-19-2015 |
20150334498 | DESTRUCTIVE INTERFERENCE MICROPHONE - A higher-order acoustical pressure measurement device (e.g., microphone) is disclosed. The device includes a first acoustic pressure measurement from a generally concentrated spatial location and a second acoustic pressure measurement having a spatiality greater than the concentrated spatial location of the first acoustic pressure measurement and at least one destructive interference signal. The destructive interference signal is characterized at least in part by the spatiality of the second acoustic pressure measurement. A higher-order microphone includes sensor elements configured to provide a destructive interference signal such that interference at one sensor element is configured to lower the destructive interference signal for the primary direction of directivity from a source signal. | 11-19-2015 |
20150334499 | Glitch Detection and Method for Detecting a Glitch - System and method for detecting a glitch is disclosed. An embodiment comprises increasing a bias voltage of a first capacitor, sampling an input signal of a first plate of the first capacitor with a time period, mixing the input signal with the sampled input signal, and comparing the mixed signal with a reference signal. | 11-19-2015 |
20150350759 | VOLTAGE CONTROL DEVICE FOR EAR MICROPHONE - Disclosed is a voltage control device including a voltage detector detecting an output voltage output from an output port of a mobile communication device; and a voltage control circuit bypassing the output voltage to an earpiece in which a speaker and a microphone are integrally formed when the output voltage detected by the voltage detector is between a first voltage and a second voltage higher than the first voltage. | 12-03-2015 |
20150358751 | A Multifunctional Device For Assembly And Test Of Wire-Control Earphone - The present invention discloses a multifunctional device for assembly and test of wire-control earphone, belonging to the technical field of assembly and test device of electronic products, comprising an operating platform, and a wire-control component region and a wire slot are provided on the upper surface of the operating platform, the assembly of wire-control component can be achieved by the operating platform; and touch control holes are provided in the wire-control component region, the touch control holes are in one-to-one correspondence with rods, each of the rods has a touch control end and an operating end, a socket is provided on the operating platform, the socket is connected to a circuit board, a test probe connection terminal is provided on the circuit board, and after an earphone plug is inserted into the socket, by pressing the operating end of the rod, the touch control terminal comes into contact with the contact point on the wire component, then through the test probe connection terminal on the circuit board, a signal is transmitted to an outer test device, thereby the test of the wire-control component is completed. The examples of the present invention can achieve the assembly and test of wire-control component, and achieve the universality of work device between different work stations, thus improve production efficiency greatly. | 12-10-2015 |
20150382098 | PROXIMITY EAR BUDS FOR EARPHONE LISTENING - A set of earphones for listening to audio including: a first ear bud; a second ear bud; a first proximity sensor on the first ear bud; a second proximity sensor on the second ear bud, wherein the first proximity sensor and second proximity sensor detect placement of each respective ear bud into a user's ear and each proximity sensor activates and deactivates a audio player based upon placement of each ear bud; a first connectivity cord, extending from the first ear bud; and a second connectivity cord, extending from the second ear bud. | 12-31-2015 |
20160007130 | Performance Metric Based Stopping Criteria for Iterative Algorithms - Performance metric based stopping criteria for iterative algorithm techniques are described. In one or more implementations, a training dataset is processed by one or more computing devices using an iterative algorithm having a cost function. The processing includes, for a plurality of iterations of the iterative algorithm, computing a cost for the iterative algorithm using the cost function and a value for each of a plurality of performance metrics that are usable to infer accuracy of the iterative algorithm for a respective one of the iterations. Responsive to the processing, a particular one of the plurality of iterations is identified as a stopping criterion based at least in part on the computed values for the plurality of performance metrics and the stopping criterion is output to configure the iterative algorithm to use the stopping criterion for subsequent processing of data by the iterative algorithm. | 01-07-2016 |
20160014537 | Calibration Error Conditions | 01-14-2016 |
20160021475 | SYSTEMS AND METHODS FOR IDENTIFYING NOISES WITH WIRELESS TRANSDUCER - A noise or vibration detection system includes a clamping device with an audio transducer and a wireless transmitter. The transmitter transmits the audio signal, or a modified version of the audio signal, from the transducer. A mobile device located remote from the transmitter receives the transmitted audio signal for processing. The mobile device includes a receiver configured to receive the audio signal, a display configured as a user interface and to display information to a user, a memory configured to store non-transient machine executable code, and a processor configured to execute the machine executable code stored on the memory. The machine executable code is configured to process the received signal to form an audio signal which is presented to a speaker of the mobile device or a headphone port of the mobile device and also display the audio signal in graphical form on the display. | 01-21-2016 |
20160037277 | FAILURE DETECTION SYSTEM AND FAILURE DETECTION METHOD - A failure detection system includes an omnidirectional microphone array device having a plurality of microphone elements and a directivity control device that calculates a delay time of a voice propagated from a sound source to each microphone element and forms a directivity of the voice using the delay time and the voice collected by the omnidirectional microphone array device, and detects a failure of the microphone element. A smoothing unit calculates an average power of one microphone element. An average calculator calculates a total average power of a plurality of usable microphone elements included in the omnidirectional microphone array device. A comparison unit compares whether or not a difference between the average power and the total average power exceeds a range of ±6 dB, and determines whether the microphone element is in failure based on the comparison result. | 02-04-2016 |
20160037278 | 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. | 02-04-2016 |
20160057554 | ACOUSTIC TRANSDUCER AGING COMPENSATION WITH LIFE INDICATOR - Acoustic transducer aging compensation is effective for an acoustic transducer that is driven with an adjustable drive power to output a signal. A microphone can measure the amplitude of the transmitted signal corresponding to a transmitted sound pressure level (SPL). A controller can periodically compare the transmitted SPL to the drive power or a previous SPL, and determine if the received SPL has declined with respect to the input drive power over time, whereupon the controller can direct an increase in drive power to the SPL-declined acoustic transducer to compensate for the decline in received SPL. If drive power is at a maximum, the controller can further instruct a mobile device receiver to lower its receiver detection threshold for the signal from the SPL-declined acoustic transducer to further compensate for the decline in SPL from that acoustic transducer. A life indicator can be provided to inform the system operator of the degraded speaker so as to provide an early warning indicator for servicing of that transducer. | 02-25-2016 |
20160071508 | ADAPTIVE NOISE CONTROL SYSTEM WITH IMPROVED ROBUSTNESS - A method for determining an estimation of a secondary path transfer characteristic in an ANC system is described herein. In accordance with one example of the invention, the method includes the positioning of a microphone array in a listening room symmetrically with respect to a desired listening position and reproducing at least one test signal using a loudspeaker arranged within the listening room to generate an acoustic signal. The acoustic signal is measured with the microphones of the microphone array to obtain a microphone signal from each microphone of the microphone array, and a numerical representation of the secondary path transfer characteristic is calculated for each microphone signal based on the test signal and the respective microphone signal. The method further includes averaging the calculated numerical representations of the secondary path transfer characteristic to obtain the estimation of the secondary path transfer characteristic to be used in the ANC system. | 03-10-2016 |
20160073208 | Acoustic Characterization Based on Sensor Profiling - A system, method, and computer-readable medium for an audio processing system which compensates for environment parameters to enhance audio inputs and outputs of an information handling system. More specifically, in certain embodiments, the audio processing system accounts for environmental characteristics including some or all of shape, size, materials, occupant, quantity, location and occlusions. | 03-10-2016 |
20160073211 | SMART PLUG AND PLAY AUTOMATIC OBD-II SYSTEM TESTER - An audio system testing arrangement includes a controller coupled to a communication. bus of a motor vehicle. The controller runs test scripts via the communication bus. The test scripts are for testing features of an audio system within the vehicle. A fault of the audio system is determined dependent upon results of the test scripts, a display and/or speaker annunciates the determined fault of the audio system. | 03-10-2016 |
20160080879 | System and Method for a Transducer - According to an embodiment, a transducer system includes a transducing element and a symmetry detection circuit. The transducing element includes a signal plate, a first sensing plate, and a second sensing plate. The symmetry detection circuit is coupled to a differential output of the transducer element and is configured to output an error signal based on asymmetry in the differential output. | 03-17-2016 |
20160080880 | SYSTEM AND METHOD FOR ON-SITE MICROPHONE CALIBRATION - A system and method for on-site calibration of a plurality of microphones in a three-dimensional space are provided. The method includes causing a generation of a plurality of transmissions; causing each microphone to capture each transmission, wherein one of the microphones is selected as a reference microphone; estimating, for each microphone, a plurality of location pointers based on the captured transmissions, wherein each location pointer represents a time difference between the microphone and the reference microphone; determining, based on each location pointer, at least one location parameter for each microphone; and calibrating the plurality of microphones based on the at least one location parameter. | 03-17-2016 |
20160104499 | SIGNAL PROCESSING DEVICE AND SIGNAL PROCESSING METHOD - A signal processing device comprises: a band detecting means for detecting a frequency band which satisfies a predetermined condition from an audio signal; a reference signal generating means for generating a reference signal in accordance with a detection band by the band detecting means; a reference signal correcting means for correcting the generated reference signal on the basis of a frequency characteristic thereof; a frequency band extending means for extending the corrected reference signal up to a frequency band higher than the detection band; an interpolation signal generating means for generating an interpolation signal by weighting each frequency component within the extended frequency band in accordance with a frequency characteristic of the audio signal; and a signal synthesizing means for synthesizing the generated interpolation signal with the audio signal. | 04-14-2016 |
20160119732 | ADVANCED COMMUNICATION EARPIECE DEVICE AND METHOD - An earpiece device ( | 04-28-2016 |
20160125711 | HAPTIC MICROPHONE - A microphone having an embedded haptic device, along with an associated program product and methodology for controlling the haptic device. A microphone is disclosed that includes: a haptic device embedded therein capable of outputting a haptic response; and a haptic control system having an input system for receiving an external input associated with a use of the microphone, an analysis engine for analyzing the external input, and a haptic response controller for triggering the haptic response. | 05-05-2016 |
20160127844 | AUDIO INTERFACE ARRANGEMENT AND A HANDHELD DEVICE COMPRISING THE AUDIO INTERFACE ARRANGEMENT - The present disclosure generally relates to an audio interface arrangement. In one embodiment, a handheld device comprises the audio interface arrangement (not shown). The audio interface arrangement comprises at least two audio connecting means, wherein each of the at least two audio connecting means is adapted to connect a respective audio accessory to the audio interface arrangement. The audio interface arrangement further comprises an accessory determining means, which is coupled to said at least two audio connecting means. The accessory determining means is adapted to determine which type of audio accessory is connected to the respective audio connecting means. Hereby it is made possible to provide a handheld device that offers a user with a possibility to connect several different audio accessories to the handheld device, which accessories may be connected to the handheld device at the same time. | 05-05-2016 |
20160127845 | BLOCKAGE DETECTION FOR A MICROELECTROMECHANICAL SYSTEMS SENSOR - Systems and techniques for detecting blockage associated with a microelectromechanical systems (MEMS) microphone of a device are presented. The device includes a MEMS acoustic sensor and a processor. The MEMS acoustic sensor is contained in a cavity within the device. The processor is configured to detect a blockage condition associated with an opening of the cavity that contains the MEMS acoustic sensor. | 05-05-2016 |
20160142815 | HEADSET WITH END-FIRING MICROPHONE ARRAY AND AUTOMATIC CALIBRATION OF END-FIRING ARRAY - In one invention embodiment two microphones are attached to the ear cup and are configured as an end-firing array. The end-firing array suppresses unwanted sounds using an adaptive spectral method and spectral subtraction. According to a second embodiment, Automatic Calibration of an end-firing Microphone Array is provided. | 05-19-2016 |
20160150338 | SOUND EVENT DETECTING APPARATUS AND OPERATION METHOD THEREOF - Provided is a method of operating an acoustic event detecting apparatus including: receiving an acoustic input; extracting frequency characteristics of the acoustic input; determining whether a first acoustic event has occurred by analyzing the extracted frequency characteristics; and in response to determining that the first acoustic event has occurred, acquiring data about at least one of a sound, an image, and a video from an environment outside of the acoustic event detecting apparatus and transmitting the data to a first device. | 05-26-2016 |
20160152183 | METHOD AND DEVICE FOR PROVIDING INFORMATION ABOUT FAILURE IN VIRTUAL ENGINE SOUND SYSTEM UNIT FOR VEHICLE | 06-02-2016 |
20160157033 | METHOD AND APPARATUS FOR IDENTIFYING FOREIGN SUBSTANCES IN CONNECTORS | 06-02-2016 |
20160157036 | MICROPHONE CONFIGURATION AND CALIBRATION VIA SUPPLY INTERFACE | 06-02-2016 |
20160165346 | RECORDING APPARATUS, AND CONTROL METHOD OF RECORDING APPARATUS - According to the present invention, a recording apparatus includes an apparatus body having a front surface and a rear surface that constitute a front and a back, a first microphone which is placed in the front surface of the apparatus body and which has a predetermined directivity, a second microphone which is provided in the rear surface facing the front surface of the apparatus body and which has a directivity that is narrower than that of the first microphone, and a recording processing unit which switches a microphone for use in recording processing between the first microphone and the second microphone to perform the recording processing in accordance with the state of the apparatus body. | 06-09-2016 |
20160165373 | WIRELESS AUDIO TRANSMISSION SYSTEM, IN PARTICULAR WIRELESS MICROPHONE SYSTEM - A wireless audio transmission system which has at least one wireless transmitter for the wireless transmission of a detected audio signal as a first audio signal by way of a first wireless transmission path. The wireless audio transmission system further has at least one in-ear monitor unit for directly receiving the first audio signal and for receiving a second audio signal. The first and second audio signals are mixed in the in-ear monitor unit and output as an output signal. The wireless audio transmission system has a mixing desk for mixing the first audio signal and further received audio signals to give an output signal which can be output to the public or recorded. | 06-09-2016 |
20160174003 | ERROR CORRECTION FOR ULTRASONIC AUDIO SYSTEMS | 06-16-2016 |
20160174005 | SENSOR SYSTEMS | 06-16-2016 |
20160183021 | METHOD FOR TESTING SIGNAL-TO-NOISE RATIO USING A FILM FRAME | 06-23-2016 |
20160183026 | Stereophonic Sound Recording Method and Apparatus, and Terminal | 06-23-2016 |
20160192071 | ACOUSTIC DEVICE, ACOUSTIC PROCESSING METHOD, AND ACOUSTIC PROCESSING PROGRAM - With an acoustic device according to an embodiment, an acquiring unit acquires a frequency characteristic of external noise caused by road noise or the like and a converting unit converts a frequency characteristic of the acquired external noise to an auditory sensitivity characteristic in accordance with a frequency characteristic of auditory sensitivity. In the acoustic device, a setting unit sets a parameter that is in accordance with an auditory sensitivity characteristic in an equalizer. The equalizer corrects, in accordance with the parameter that is set by the setting unit, a frequency characteristic of an audio signal that is played back by a playback unit. | 06-30-2016 |
20160198253 | WIRED AND WIRELESS EARSET USING EAR-INSERTION-TYPE MICROPHONE | 07-07-2016 |
20160198259 | ACOUSTIC DEVICE, ACOUSTIC SYSTEM, MOVING BODY DEVICE, AND MALFUNCTION DIAGNOSIS METHOD FOR ACOUSTIC SYSTEM | 07-07-2016 |
20160198276 | LOW-COST METHOD FOR TESTING THE SIGNAL-TO-NOISE RATIO OF MEMS MICROPHONES | 07-07-2016 |
20160205485 | ELECTRONIC DEVICE AND METHOD FOR DETECTING AN ACCESSORY OF THE ELECTRONIC DEVICE | 07-14-2016 |
20160255450 | MICROPHONE CONNECTING DEVICE | 09-01-2016 |
20160381465 | OFFSET CALIBRATION IN A MULTIPLE MEMBRANE MICROPHONE - A multi-membrane microphone including an audio processing circuit is disclosed. The membranes are configured to output to a plurality of amplifiers a plurality of sensing signals in response to sound. The amplifiers in turn create amplified signals by amplifying the sensing signals and introduce a plurality of offsets into the amplified signals, respectively. The audio processing circuit includes a controller that sequentially measures the offset for each amplifier a corresponding membrane is inactive and stores the offset. The controller also compensates each amplified signal by the corresponding offset during operation of the multi-membrane microphone. | 12-29-2016 |
20160381477 | AUDIO PROCESSING DEVICE - To be able to activate a self-device when an input digital audio signal is an audio signal indicating sound. | 12-29-2016 |
20160381479 | Method for controlling a wireless audio receiver unit and wireless audio receiver unit - There is provided a method which makes it possible for a device connected to an electronic video camera to be put into a sleep mode by way of switching off the phantom voltage at the interface for sound and to put it back into the working mode again when the phantom voltage from same reappears. In that case that device can put further devices into a sleep mode by way of a wireless connection and also switch them back into the normal working mode again. | 12-29-2016 |
20160381480 | ELECTRONIC DEVICE - At least one processor can detect a volume of a sound input to an upper microphone. The at least one processor can determine whether or not at least one of a sound emission hole for a rear speaker and a sound collection hole for the upper microphone is clogged, based on the detected volume. The at least one processor can give a notification about a result of determination. | 12-29-2016 |
20170238107 | MEMS Microphone, Apparatus comprising a MEMS Microphone and Method for Fabricating a MEMS Microphone | 08-17-2017 |
20170238108 | INTEGRATED SELF-TEST FOR ELECTRO-MECHANICAL CAPACITIVE SENSORS | 08-17-2017 |
20170238109 | METHOD FOR SELECTING A MICROPHONE AND APPARATUS AND COMPUTER STORAGE MEDIUM | 08-17-2017 |
20180025297 | RE-CREATING THE SOUND OF AN AUDIENCE LOCATION AREA FROM A MEASURED PERFORMANCE SPACE IN A LIVE REHEARSAL SPACE | 01-25-2018 |
20180027346 | AUTOMATING REPAIRS TO AUDIO SYSTEMS | 01-25-2018 |
20180027348 | METHOD AND APPARATUS FOR EVALUATING AUDIO DEVICE, AUDIO DEVICE AND SPEAKER DEVICE | 01-25-2018 |
20190146751 | SYSTEM AND METHOD FOR REDUCING POWER CONSUMPTION IN AN AUDIO SYSTEM BY DISABLING FILTER ELEMENTS BASED ON SIGNAL LEVEL | 05-16-2019 |
20190149933 | DEVICE AND METHOD FOR CONTROLLING MICROPHONE ACCORDING TO CONNECTION OF EXTERNAL ACCESSORY | 05-16-2019 |
20190149939 | SYSTEM FOR MODELLING ACOUSTIC TRANSFER FUNCTIONS AND REPRODUCING THREE-DIMENSIONAL SOUND | 05-16-2019 |