Class / Patent application number | Description | Number of patent applications / Date published |
381101000 | Automatic tone control | 44 |
20080267427 | LOUDNESS-BASED COMPENSATION FOR BACKGROUND NOISE - Loudness-based compensation systems and techniques are described which provide audio compensation in noisy environments. Loudness approximations are determined for an audio block both by itself and in the presence of background noise. These approximations utilize compression of audio intensity within frequency bands in order to better reflect listeners' hearing perception. From these loudness approximations, a gain is determined for the audio block and then applied in such a manner that the effect is not jarring to listeners. | 10-30-2008 |
20090052695 | Signal processing device, signal processing method, and program therefor - A signal processing device includes a bass signal extractor, a harmonic wave generator, a level detector, and an adjustment controller. The bass signal extractor first extracts a bass signal from an input audio signal. Natural-sounding bass enhancement is achieved as a result of the adjustment controller boosting the bass signal level until the level detector detects the bass signal level at a set level. For input bass signal levels higher than the set level, bass is enhanced virtually using a harmonic signal generated from the bass signal by the harmonic wave generator. As a result, the disadvantages of the boost method and the virtual signal enhancement method are mutually compensated for, and synergistic advantages for bass enhancement are obtained. | 02-26-2009 |
20100142728 | INFORMATION PROCESSING APPARATUS PROCESSING NOTIFICATION SOUND AND AUDIO-BASED CONTENTS, AND INFORMATION PROCESSING METHOD THEREOF - In a user terminal, a reproducing unit reads out from a music file memory unit a music file selected and input by a user and reproduces the music file. In a normal reproduction, an output unit outputs the reproduced sound as an audio. When a notification information reception unit receives information that needs to be noticed such as an e-mail or a phone call, a notification information analysis unit analyzes the setting of the information or notification sound and determines the degree of importance. A frequency band allocation unit selects from allocation patterns of frequency bands stored in an allocation information memory unit a pattern for the music and for the notification sound according to the degree of importance and the frequency band of the notification sound. An audio processing unit extracts and synthesizes the components of the frequency bands allocated to music and the notification sound, and the output unit outputs accordingly. | 06-10-2010 |
20100220872 | Recording apparatus, recording method, audio signal correction circuit, and program - Disclosed herein is a recording apparatus including: an audio signal correction block configured to execute correction for flattening the frequency characteristic of an audio signal supplied from a microphone and/or correction of the level of the audio signal; a correction control block configured to make the audio signal correction block adjust the level of the audio signal attenuate the reference value with time, and, if an audio signal with a level thereof exceeding the reference value is entered, use the absolute value of the level of the audio signal exceeding the reference value as a new reference value; and a recording block configured to record the audio signal to a recording media. | 09-02-2010 |
20100246854 | SOUND REPRODUCTION - A sound system ( | 09-30-2010 |
20120039484 | SPEAKER WITH FREQUENCY DIRECTED DUAL DRIVERS - A speaker that includes a pair of spaced-apart, in-plane mounted drivers connected in series to a network for applying the appropriate frequency component of the electrical input drive signal to each of the drivers is disclosed. A frequency dependent shunting network, such as a low pass filter, is applied to one of the drivers so as to gradually mute the one driver as a desired frequency is approached. The result is an aesthetically pleasing speaker that has dual in-plane drivers and that produces superior sound quality throughout the entire frequency range of the speaker, including those ranges in which dual, in plane, drivers tend to acoustically interfere with each other. | 02-16-2012 |
20120140952 | AUDIO REPRODUCING APPARATUS - An audio signal processing apparatus and method for extracting components from an input signal, generating additional components, combining components, and level-controlling components. An audio signal processing apparatus may include a harmonic overtone adder and an equalizer. A harmonic overtone adder may include a high-pass filter, a low-pass filter, an harmonic overtone generator, and a combining unit. An equalizer may include a level detector and a gain controller. | 06-07-2012 |
20120288119 | Portable Tone Generator for Producing Pre-Calibrated Tones - A portable tone generator includes a connector configurable to couple to an input/output port of a computing device, a memory configured to store data corresponding to a plurality of frequencies, and an output interface configurable to couple to a speaker system. The portable tone generator further includes tone generating circuitry coupled to the input interface, the output interface, and the memory. The tone generating circuitry is configured to receive a control signal from the computing device identifying a selected frequency of the plurality of frequencies, retrieve the data corresponding to the selected frequency, produce an output signal including a tone based on the data in response to receiving the control signal, and provide the output signal to the output interface. | 11-15-2012 |
20130322651 | SYSTEMS, METHODS, AND APPARATUS FOR GENERATING REPRESENTATIONS OF IMAGES AND AUDIO - Systems, apparatus, methods, and articles of manufacture provide for determining tones and/or volumes based on color information associated with an image file. Some embodiments provide for generating tones as background chords, automatically in an auto-play mode, and/or manually (e.g., based on a user touching a touch screen). | 12-05-2013 |
20140193001 | EQUALIZATION USING USER INPUT - A system for interacting with an audio reproduction device and a user using the audio reproduction device is disclosed. The system includes: an image capture module capturing an image depicting an audio reproduction device used by a user; an image recognition module performing image recognition to extract recognition data from the image, the recognition data including data describing the audio reproduction device and one or more deteriorating factors that deteriorate a sound quality in the audio reproduction device; a filter module estimating a sound degradation in the audio reproduction device that is caused by the one or more deteriorating factors, the filter module applying a digital filter to compensate the sound degradation in the audio reproduction device; an aggregation module aggregating data associated with the user, the aggregated data including the recognition data; and a recommendation module providing one or more recommended items to the user. | 07-10-2014 |
20140211967 | METHOD FOR DYNAMICALLY ADJUSTING THE SPECTRAL CONTENT OF AN AUDIO SIGNAL - A method for dynamically adjusting the spectral content of an audio signal, which increases the harmonic content of said audio signal, said method comprising translating an encoded digital signal into data bands, creating a psychoacoustic model to identify sections of said data bands that are deficient in harmonic quality, analyzing the fundamental frequency and amplitude of said harmonically deficient data bands, creating additional higher order harmonics for said harmonically deficient data bands, adding said higher order harmonics back to said encoded digital signal to form a newly enhanced signal, inverse filtering said newly enhanced signal, and converting said inverse filtered signal to an analog waveform for consumption by the listener. | 07-31-2014 |
20140321668 | SIGNAL PROCESSING DEVICE - A signal processing device includes an excessive input estimating unit | 10-30-2014 |
20150010166 | SOUND ENHANCEMENT FOR HOME THEATERS - A method and process and system for enhancing and customizing movie theatre sound includes receiving an input audio sound and enhancing the received sound. The enhanced audio sound is subsequently tone adjusted to create a tone adjusted enhanced sound, which is then outputted. The enhancement includes the parallel processing the input audio via a low pass filter with dynamic offset, an envelope controlled bandpass filter, a high pass filter, adding an amount of dynamic synthesized sub bass to the audio and combining the four treated audio signals in a summing mixer with the original audio. The tone adjustment includes a first section for adjusting a low frequency tone, a second section for adjusting a mid frequency tone, a third section for adjusting a high frequency tone and mixing the audio outputs processed by the first, second and third sections to produce a tone adjusted enhanced audio sound. | 01-08-2015 |
20150063595 | SPEAKER APPARATUS - An apparatus comprising: a surface; at least one contact transducer, wherein the at least one contact transducer is coupled to the surface and configured to move the surface to generate at least one acoustic signal, wherein the at least one acoustic signal is configured to be transmitted at least by the surface; at least one acoustic enhancer configured to enhance the acoustic output of the at least one contact transducer, wherein the at least one acoustic enhancer comprises at least one further transducer configured to generate at least one further acoustic signal. | 03-05-2015 |
20160037257 | MICROPHONE WITH PROGRAMMABLE FREQUENCY RESPONSE - Methods and apparatus automatically cancel or attenuate an unwanted signal (such as low frequencies from wind buffets) from, and/or control frequency response of, a condenser microphone, or control the effective condenser microphone sensitivity before the signal reaches an ASIC or other processing circuit. As a result, the maximum amplitude signal seen by the processing circuit is limited, thereby preventing overloading the input of the processing circuit. Remaining (wanted) frequencies can be appropriately amplified to reduce the noise burden on further processing circuits. A corrective signal is applied to a bias terminal of the condenser microphone to cancel the unwanted signal. Optionally or alternatively, a controllable impedance is connected to a line that carries the signal generated by the MEMS microphone, so as to attenuate unwanted portions of the signal. | 02-04-2016 |
20160056787 | EQUALIZER CONTROLLER AND CONTROLLING METHOD - Equalizer controller and controlling method are disclosed. In one embodiment, an equalizer controller includes an audio classifier for identifying the audio type of an audio signal in real time; and an adjusting unit for adjusting an equalizer in a continuous manner based on the confidence value of the audio type as identified. | 02-25-2016 |
20160057535 | AUDIO FILTERING WITH VIRTUAL SAMPLE RATE INCREASES - The present invention relates broadly to a method of digitally filtering an audio signal by applying a composite audio filter. The composite audio filter may be obtained by applying one audio filter to another audio filter each having the same predetermined sample rate including neighbouring sample points. The other audio filter may also include one or more intervening sample points between adjacent of its neighbouring sample points. The one audio filter may be applied to the other audio filter at an adjusted sampling rate relative to the other audio filter. The adjusted sampling rate may be inversely proportional to the number of intervening sample points relative to the number of neighbouring sample points for the other filter. The frequency response curve for the composite filter derived using the adjusted sampling rate may be more indicative of an idealised lowpass filter. The frequency response with the adjusted sampling rate may display a more bell-shaped characteristic compared with the frequency response without an adjusted sampling rate (shown in broken line detail). | 02-25-2016 |
20160112798 | MOBILE APPARATUS AND CONTROL METHOD THEREOF - A mobile apparatus and control method thereof are provided, which includes an audio data signal input unit arranged to receive an audio data signal. An audio output unit is arranged to output an audio signal according to the received audio data signal within a first reproduction frequency. A balanced armature is arranged to output an audio signal according to the received audio data signal within a second reproduction frequency band. The second reproduction frequency band is different from the first reproduction frequency band. An audio signal processor is arranged to adjust the first reproduction frequency band and the second reproduction frequency band such that a combination of the first reproduction frequency band and the second reproduction frequency band is wider than the first reproduction frequency band and the second reproduction frequency band individually. | 04-21-2016 |
20160126915 | FILTER COEFFICIENT GROUP COMPUTATION DEVICE AND FILTER COEFFICIENT GROUP COMPUTATION METHOD - A filter coefficient group computation device is configured from a means for performing inverse Fourier transform on a frequency characteristic inputted through an input means; a means for performing short-term Fourier transform on a numerical string obtained by the inverse Fourier transform; a means for performing windowing on a frequency domain signal, obtained by the short-term Fourier transform, using a function of which a window length shortens as frequency increases; a means for performing short-term inverse Fourier transform on the frequency domain signal after the windowing; a means for performing overlap addition on a numerical string obtained by the short-term inverse Fourier transform; and a means for determining a numerical string after the overlap addition as a filter coefficient group which forms a filter having the frequency characteristic inputted through the input means. | 05-05-2016 |
20170238094 | Complex Exponential Modulated Filter Bank for High Frequency Reconstruction or Parametric Stereo | 08-17-2017 |
381102000 | With amplitude control | 24 |
20090046872 | AUTOMATIC AUDIO LEVEL CONTROL - An audio signal processing device ( | 02-19-2009 |
20090074205 | Vacuum tube preamplifier, amplifier and method for musical instruments with programmable controls - An amplifier is provided using digital potentiometer integrated circuits to control the tone of a vacuum tube preamplifier allowing digital control of the analog signal path of the amplifier. Using digital potentiometer integrated circuits to control the tone of a vacuum tube preamplifier results in an amplifier that preserves the unique tone quality of a vacuum tube amplifier that offers the flexibility, versatility, and user-friendly features of a digitally controlled amplifier, such as the ability to save and recall amplifier settings. The amplifier of the present invention is especially applicable for use with musical instruments such as for example, electric guitars. | 03-19-2009 |
20100067717 | IMAGE PROCESSING APPARATUS AND CONTROL METHOD THEREOF - Disclosed are a circuit device which prevents an over-output of an audio signal in a certain band, a processing method of an audio signal, an image processing apparatus including the same and a control method thereof The image processing apparatus including: an image processor which processes an image signal; and an audio processor which filters an input audio signal to be in a first frequency band and limits a level of the audio signal in the first frequency band to a first output threshold value or less if the level of the audio signal in the first frequency band exceeds a predetermined first threshold value. | 03-18-2010 |
20100158273 | SYSTEM AND METHOD FOR DYNAMIC BASS FREQUENCY CONTROL - A system and method for dynamic bass frequency control, the system comprising: a bandwidth filter coupled to a plurality of switchable electronic components for filtering a frequency range of an input signal; an amplifier coupled to the bandwidth filter and the plurality of switchable electronic components, the amplifier being configured for adjusting amplitude of the filtered frequency range of the input signal based on a configuration of the plurality of switchable electronic components; and a signal level detector coupled to the switchable electronic components for determining signal strength of the input signal, the signal level detector being configured to switch the plurality of switchable electronic components between more than one configuration based on the signal strength of the input signal, each configuration determining the frequency range of the input signal to be filtered by the bandwidth filter and the amplitude adjustment to be made to the filtered frequency range of the input signal by the amplifier. | 06-24-2010 |
20100189283 | TONE EMPHASIZING DEVICE, TONE EMPHASIZING METHOD, TONE EMPHASIZING PROGRAM, AND RECORDING MEDIUM - A tone emphasizing device includes a tone emphasizing unit that includes a level detecting unit that detects a fundamental tone level of a tone of a given pitch included in an original tone reproduced by a data player; an extracting unit that extracts frequency components of a fundamental tone and overtones from the original tone; a frequency correcting unit that eliminates, from the extracted frequency components, frequency components equal to or lower than the fundamental tone and frequency components equal to or higher than an overtone included in the tone of the given pitch; and a level adjusting unit that adjusts, according to results obtained by the level detecting unit, a level of the corrected tone. The tone emphasizing device further includes an amplifying unit that amplifies to a desired level, the tone having an adjusted level; and an adding unit that adds to the original tone, the amplified tone. | 07-29-2010 |
20100195846 | AUTOMATIC LEVEL CONTROL CIRCUIT - A variable gain amplifier amplifies an input audio signal. A first control unit monitors the level of the input audio signal, and sets the gain of the variable gain amplifier to a predetermined fixed value when this level is lower than a predetermined minimum threshold. A second control unit monitors the level of an output signal VO of the variable gain amplifier. When this level exceeds a predetermined maximum threshold, the second control unit lowers the gain of the variable gain amplifier. When this level becomes smaller than this threshold, it raises the gain. When the level of the input audio signal is smaller than the minimum threshold, the first control unit disables the gain control operation of the variable gain amplifier controlled by the second control unit. A sub-amplifier amplifies the input audio signal. An output mixing unit mixes signals output from the variable gain amplifier and the sub-amplifier. | 08-05-2010 |
20100266142 | PREVENTION OF AUDIO SIGNAL CLIPPING - The invention discloses a method and a circuit for preventing clipping of an audio signal. The method comprises determining the highest amplitude frequency components of the audio signal in the frequency domain, and then reducing the amplitudes of these frequency components until a level of clipping of the audio signal falls below a predetermined level. | 10-21-2010 |
20110044472 | AUDIO COMPENSATION UNIT AND COMPENSATING METHOD AND AUDIO PROCESSING DEVICE THEREOF - An audio compensation unit includes a detection subunit and a compensation subunit. The detection subunit is for detecting an audio signal to obtain an original frequency. The detection subunit defines a predetermined low frequency band and a predetermined high frequency band. The detection subunit is also for generating a first control signal when the original frequency is within the low frequency band, and a second control signal when the original frequency is within the high frequency band. The compensation subunit includes an electronic switch, a first compensation circuit, and a second compensation circuit. The electronic switch enables the first compensation circuit according to the first control signal, for compensating the audio signal. The electronic switch is further enables the second compensation circuit according to the second control signal, for compensating the audio signal. | 02-24-2011 |
20110188673 | APPARATUS FOR ENABLING KARAOKE - There is provided an apparatus for enabling karaoke. The apparatus includes a casing for the apparatus; a microphone array incorporated within the casing, the microphone array being concealed from a user by the casing; a controller coupled to the microphone array to at least process audio signals from the user input at the microphone array; a data storage device coupled to the controller, the data storage device being for storing pre-recorded songs used for karaoke, and for storing songs as sung by the user; and an image capturing device coupled to the controller, the image capturing device being for capturing images of the user while the user is singing, with the captured images of the user being stored on the data storage device. | 08-04-2011 |
20110200209 | LEVEL ADJUSTING CIRCUIT - A circuit configured to adjust the level of an audio signal includes filters each of which is configured to receive an audio signal, and to pass a band set for the filter. Variable gain amplifiers are severally provided to the respective filters, and each variable gain amplifier amplifies the output signal of the corresponding filter. An adder sums the input audio signal and the output signals of the variable gain amplifiers. A control unit controls the level of the output signal of each of the variable gain amplifiers, and controls the gain of each variable gain amplifier according to the level thus monitored. | 08-18-2011 |
20130003989 | PERCEPTION ENHANCEMENT FOR LOW-FREQUENCY SOUND COMPONENTS - This invention discloses a method and a plurality of compressive amplitude distortion units for enhancing the perceptibility of the low-frequency portion of a sound by introducing residue harmonics of low-frequency signal components into the sound, where the residue harmonics are generated by a nonlinear function emulating the middle-ear response of a human being. The low-frequency portion in the resultant sound is perceivable to a human listener even if this portion is removed from this sound. In one embodiment, a compressive amplitude distortion unit comprises: a low pass filter for extracting low-frequency components of the input sound signal; a compressive amplitude function processor for generating a harmonics-containing signal from the low-pass signal by a nonlinear function emulating the middle-ear response; a gain block for scaling the harmonics-containing signal such that the signal strength of the scaled harmonics-containing signal is in the same range as that of the initial low-pass signal; an adder for adding the input sound signal and the scaled harmonics-containing signal; and a high pass filter for removing the low-frequency signal components in the output sound signal while still including the residue harmonics. Based on the disclosed method, this invention also discloses two anti-piracy methods that utilize the absence of low-frequency signal components in a sound signal, one for convenient detection of an unauthorized copy of the processed sound signal, another one for discouraging people to make such an unauthorized copy. | 01-03-2013 |
20140044282 | Active Instrument Subwoofer System for Low Frequency Enhancement - An instrument amplification system provides improved low frequency enhancement. A powered subwoofer system enhances the low frequency components of a standard instrument amplifier by incorporating a speaker level high-pass filter crossover network | 02-13-2014 |
20140161283 | Reconstructing an Audio Signal By Spectral Component Regeneration and Noise Blending - An audio signal is conveyed more efficiently by transmitting or recording a baseband of the signal with an estimated spectral envelope and a noise-blending parameter derived from a measure of the signal's noise-like quality. The signal is reconstructed by translating spectral components of the baseband signal to frequencies outside the baseband, adjusting phase of the regenerated components to maintain phase coherency, adjusting spectral shape according to the estimated spectral envelope, and adding noise according to the noise-blending parameter. Preferably, the transmitted or recorded signal also includes an estimated temporal envelope that is used to adjust the temporal shape of the reconstructed signal. | 06-12-2014 |
20140334642 | METHOD AND APPARATUS FOR OUTPUTTING AUDIO SIGNAL, METHOD FOR CONTROLLING VOLUME - A method and apparatus for outputting an audio signal and a method of adjusting the volume of an audio signal are provided. An embodiment of the present invention provides a method for outputting an audio signal that includes: (a) determining an output level of a modulated signal to be outputted for each respective frequency band by using a hearing threshold measured for the respective frequency band; and (b) outputting the modulated signal and an audio signal simultaneously. An embodiment of the present invention can improve hearing ability by outputting an audio signal and a modulated signal together. Also, according to an embodiment of the present invention, a user can use visual signals to personally set the output level of audio signals that is optimal for each frequency band in accordance with changes in the user's dynamic hearing threshold for each respective frequency band, even while listening to audio signals of which the output level for each frequency band was determined previously. | 11-13-2014 |
20140341394 | Loudspeaker Enclosure System With Signal Processor For Enhanced Perception Of Low Frequency Output - A loudspeaker system with a transducer and an enclosure with at least one resonant chamber, including a resonant-chamber resonance frequency, at which a displacement characteristic of a vibratile diaphragm of the transducer has a minimum. The loudspeaker system further includes a multi-mode signal processor with a set of signal processes wherein in one example, a variable gain, frequency selective dynamic filter reduces the gain in a high displacement frequency range upon an output in the frequency range exceeding an overload amplitude threshold. The gain reduction is compensated for by complimentary frequency generating signal processes, including at least one of a harmonics generator and a transpositional gain controller, with the signal processor adapted to match the resonant chamber enclosure by substantially maintaining or increasing acoustic output at the resonant chamber resonance and generating harmonics associated with fundamental frequencies in the gain reduced frequency range to maintain a perception of tonal quality and physical bass impact, increasing low frequency capability while minimizing audible overload distortion. | 11-20-2014 |
20140369522 | SOUND-OUTPUT-CONTROL DEVICE, SOUND-OUTPUT-CONTROL METHOD, AND SOUND-OUTPUT-CONTROL PROGRAM - A sound-output-control device including an acquisition unit which acquires an anaerobic threshold, a reception unit which receives an input about exercise intensity, a calculation unit which calculates a value indicating a target heart rate of a user on the basis of the acquired anaerobic threshold and the received exercise-intensity input, a detection unit which detects a value indicating the current tempo of a physical exercise done by the user, and a control unit that controls a sound output on the basis of a result of a comparison of the target heart-rate value calculated by the calculation unit and the current physical-exercise-tempo value detected by the detection unit, so as to lead a heart rate of the user so that the heart rate of the user attains the target heart rate is provided. | 12-18-2014 |
20150043748 | ELECTRONIC DEVICE, CONTROL METHOD, AND CONTROL PROGRAM - According to an aspect, an electronic device includes: a piezoelectric element; a sound generating unit that is vibrated by the piezoelectric element and generates a vibration sound to be transmitted while vibrating part of a human body; and a detection unit that detects contact of the part of the human body with the sound generating unit. A volume of the vibration sound is changed corresponding to a detection result of the detection unit. | 02-12-2015 |
20150043749 | Recursive Audio Modulation System Using Nested Inductor Arrays - Nested inductor arrays magnetically modulate an analog audio input signal recursively, so that the overall amplitude envelope of the output signal replicates the wave pattern of the input signal. The nested inductor arrays produce multiple levels of recursive modulation, so that the output signal incorporates multiple integrated self-similar harmonic layers. The phasing of the various layers are locked in by the analog waveform of the output signal itself. As a result, the spatial “depth” and temporal “immediacy” of the original analog recording is restored and can be encoded in digital format. | 02-12-2015 |
20150098588 | APPARATUS AND METHOD FOR CONTROLLING SOUND OUTPUT - The present disclosure relates to an apparatus and a method for controlling sound output. The apparatus includes a sound processor configured to amplify a sound signal to a certain level to output an output signal to a speaker. An analyzer is configured to monitor whether an output level of the output signal output from the sound processor exceeds a maximum output level of the speaker between the sound processor and the speaker, and to convert the output signal into a signal of a frequency domain to analyze an energy amount for each frequency when the output level of the output signal exceeds the maximum output level of the speaker. A controller is configured to control a volume for the output signal of the corresponding frequency band when a frequency band having the energy amount exceeding the threshold value is detected from the analyzer. | 04-09-2015 |
20150358725 | Dynamic Engine Harmonic Enhancement Sound Stage - A method to produce a dynamic sound stage for engine harmonic enhancement (EHE). Dynamic refers to the ability to position the sound stage at different positions as the engine operates at various RPMs and load. In order to control the sound stage width, a phase difference can be introduced between a first audio channel (e.g., a left audio channel) and second audio channel (e.g., a right audio channel). In the most general case, the phase difference can be introduced per harmonic per RPM. In this approach, the phase difference can be adjusted such that a vehicle occupant will perceive each harmonic signal to have a particular width. This width can be adjusted independently per RPM regions by tuning the per harmonic phase difference. | 12-10-2015 |
20150381133 | AUDIO SYSTEM INCLUDING MULTIBAND AUDIO DYNAMICS PROCESSOR - An audio system includes a level controller receiving an input audio signal from an audio medium. The level controller includes a gain adjust module producing an output audio signal based on the input audio signal. A filter arrangement is communicatively coupled to the level controller. The filter arrangement receives the output audio signal and divides the output signal into a plurality of filtered signals. Each of the filtered signals corresponds to a respective frequency band. A multiband dynamics controller is communicatively coupled to the filter arrangement. The multiband dynamics controller receives the filtered signals and applies a respective gain characteristic to each of the filtered signals to thereby produce a plurality of gain adjust signals. The gain adjust signals are combined into a multiband dynamics controller output signal. | 12-31-2015 |
20160112023 | Signal Processor for Loudspeaker Systems for Enhanced Perception of Lower Frequency Output - A signal processing system for controlling a lower frequency acoustic range of an acoustic output of a loudspeaker system. The system includes an input to receive at least a first channel audio signal, corresponding to the acoustic output of at least one loudspeaker with at least one electro-acoustic transducer with a vibratile diaphragm. The signal processing system includes at least one transpositional gain controller processor for transposition of at least a portion of the amplitude of at least one band of frequencies in a lower frequency audio signal range of the audio signal, to an increased gain in at least one transpositional target frequency in the lower frequency audio signal range. The transpositional gain controller processor includes at least one of at least one, static or dynamic, transpositional gain controller. The system may include at least one additional signal processor, supporting preservation of a perceived fidelity of the acoustic output. | 04-21-2016 |
20160147500 | ELECTRONIC DEVICE AND METHOD FOR ANALYZING AND PLAYING SOUND SIGNAL - An electronic device and a corresponding method for analyzing and playing sound signals are provided. The electronic device includes a microphone, a processor, and a speaker. The microphone receives a sound and generates a sound signal according to the sound. The processor is coupled to the microphone for analyzing the sound signal to obtain an analysis parameter, determining a dynamic range parameter according to the analysis parameter, and adjusting the sound signal according to the dynamic range parameter. The speaker is coupled to the processor for playing the adjusted sound signal. | 05-26-2016 |
20160163327 | AUTOMATIC TIMBRE CONTROL - A system and method for automatically controlling the timbre of a sound signal in a listening room are also disclosed, which include the following: producing sound in the time domain from a re-transformed electrical sound signal in the time domain, in which an electrical sound signal in the time domain being transformed into electrical sound signal in the frequency domain and the electrical sound signal in the frequency domain being re-transformed into the re-transformed electrical sound signal; generating a total sound signal representative of the total sound in the room, processing the total sound signal to extract an estimated ambient noise signal representing the ambient noise in the room; and adjusting the spectral gain of the electrical sound signal in the frequency domain dependent on the estimated ambient noise signal, the electrical sound signal and a room dependent gain signal. | 06-09-2016 |