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US20130294612 AUTOMATIC MICROPHONE MUTING OF UNDESIRED NOISES BY MICROPHONE ARRAYS  
Methods and systems for cancelation of table noise in a speaker system used for video or audio conferencing are disclosed. Table noise is cancelled by using a vertical microphone array to...
US20130322639 SYSTEMS AND METHODS FOR ACOUSTIC ECHO CANCELLATION WITH WIRELESS MICROPHONES AND SPEAKERS  
Systems and methods for acoustic echo cancellation with wireless microphone and speaker systems are described herein. In one embodiment, an acoustic echo canceller is provided that can, among...
US20120106749 Microphone Non-Uniformity Compensation System  
A microphone compensation system responds to changes in the characteristics of individual microphones in an array of microphones. The microphone compensation system provides a communication system...
US20080107280 NOISY ENVIRONMENT COMMUNICATION ENHANCEMENT SYSTEM  
A communication system enhances communications in a noisy environment. Multiple input arrays convert a voiced or unvoiced signal into an analog signal. A converter receives the analog signal and...
US20110129096 METHOD AND SYSTEM FOR REDUCING ACOUSTICAL REVERBERATIONS IN AN AT LEAST PARTIALLY ENCLOSED SPACE  
A method of increasing the intelligibility of an audio broadcast in an at least partially enclosed space from at least one amplified audio source. An input microphone receives an incident audio...
US20120195438 Echo suppression for wireless handsets and headsets  
The enhancements provided herein are designed to allow an acoustic echo suppressor algorithm to operate with significant echo path delay between an audio block Rin and audio block Sin. In one...
US20110116644 SIMULATED BACKGROUND NOISE ENABLED ECHO CANCELLER  
An apparatus may include a noise estimation unit configured to determine a noise spectrum associated with a noise signal, and generate a filter based on the determined noise spectrum. The...
US20110013781 SYSTEM AND PROCESS FOR REGRESSION-BASED RESIDUAL ACOUSTIC ECHO SUPPRESSION  
A regression-based residual echo suppression (RES) system and process for suppressing the portion of the microphone signal corresponding to a playback of a speaker audio signal that was not...
US20090010444 METHOD AND DEVICE FOR PERSONALIZED VOICE OPERATED CONTROL  
An earpiece (100) and a method (300) personalized voice operable control can include capturing (302) an ambient sound from an Ambient Sound Microphone (111) to produce an electronic ambient signal...
US20110176687 APPARATUS AND ASSOCIATED METHODOLOGY FOR SUPPRESSING AN ACOUSTIC ECHO  
A new acoustic echo suppressor and method for acoustic echo suppression is described herein. Exemplary embodiments of the acoustic echo suppressor use one linear regression model for each subband....
US20110311066 Echo Cancellers and Echo Cancelling Methods  
Methods and systems for updating the adaptive filter of an echo canceller. A method of updating the adaptive filter of an echo canceller in which an estimated echo is resolved from a received...
US20100080398 METHOD AND SYSTEM FOR HEARING DEVICE FITTING  
The method for manufacturing an adjusted hearing device (1b) comprises the step of using first data (16a) obtained from a first hearing device (1a) adjusted to the preferences of a first user (5a)...
US20150092950 Matching Reverberation in Teleconferencing Environments  
A system and method of matching reverberation in teleconferencing environments. When the two ends of a conversation are in environments with differing reverberations, the method filters the...
US20140198923 REAL TIME AUDIO ECHO AND BACKGROUND NOISE REDUCTION FOR A MOBILE DEVICE  
An audio enhancement system includes a display unit configured to exhibit a waveform corresponding to a microphone signal that is subject to an audio interference. The audio enhancement system...
US20130301841 AUDIO PROCESSING DEVICE, AUDIO PROCESSING METHOD AND PROGRAM  
An audio processing device includes: a directivity adjustment unit adjusting directivity and sharpness thereof in audio picked up by plural microphones picking up audio; and a howling suppression...
US20130070934 ENCASEMENT FOR ABATING ENVIRONMENTAL NOISE, HAND-FREE COMMUNICATION AND NON-INVASIVE MONITORING AND RECORDING  
An encasement such as an electronic pillow including a pillow unit encasing at least one error microphone and at least one loudspeaker in electrical connection with a controller unit, the pillow...
US20140146975 ACOUSTIC ECHO CANCELLATION SYSTEM  
An acoustic echo cancellation (AEC) system includes a remote device, for capturing a remote captured sound, a server coupled to the remote device, and a local device coupled to the server. The...
US20090154692 Voice processing apparatus, voice processing system, and voice processing program  
A voice processing apparatus includes a band dividing portion dividing a first voice signal generated by a first microphone and a second voice signal generated by a second microphone into...
US20130251167 CONTROL OF A LOUDSPEAKER OUTPUT  
A loudspeaker drive circuit has a microphone which forms part of an acoustic echo cancellation system. An input signal is processed before application to a loudspeaker driver, and the processing...
US20150078564 ECHO CANCELLATION ALGORITHM FOR LONG DELAYED ECHO  
This document discloses one or more systems, apparatuses, methods, etc. for implementing an echo cancellation algorithm for long delayed echo that is created during a wire or wireless voice...
US20110206212 Microphone System and Method of Operating the Same  
A microphone system is provided, wherein the microphone system comprises a microphone array comprising a plurality of microphone units each adapted to generate a primary signal indicative of an...
US20080019535 Reverberation Adjusting Apparatus, Reverberation Correcting Method, And Sound Reproducing System  
The present invention provides a sound reproducing system capable of accurately analyzing a reverberation characteristic of amplified sound including an arrival direction of a reverberation...
US20150245155 CONTROLLING ACOUSTIC ECHO CANCELLATION WHILE HANDLING A WIRELESS MICROPHONE  
An audio system has a base station, a speaker and one or more wireless microphones. The audio system operates to receive audio information from both a far-end audio source and a near-end audio...
US20120128168 METHOD AND APPARATUS FOR NOISE AND ECHO CANCELLATION FOR TWO MICROPHONE SYSTEM SUBJECT TO CROSS-TALK  
A method and apparatus for joint noise and echo cancellation of a two microphone system subject to cross-talk. The method includes estimating the reference output by removing the cross-talk and...
US20140286497 MULTI-MICROPHONE SOURCE TRACKING AND NOISE SUPPRESSION  
Methods, systems, and apparatuses are described for improved multi-microphone source tracking and noise suppression. In multi-microphone devices and systems, frequency domain acoustic echo...
US20110093102 MITIGATING THE IMPACT OF NONLINEAR ECHOS BY DYNAMIC RANGE COMPRESSION  
Mitigation of nonlinear echoes by dynamic range compression may be provided. An audio output may be evaluated to determine whether nonlinear echoes are interfering with an audio signal. In order...
US20140328490 MULTI-CHANNEL ECHO CANCELLATION AND NOISE SUPPRESSION  
A method for multi-channel echo cancellation and noise suppression is described. One of multiple echo estimates is selected for non-linear echo cancellation. Echo notch masking is performed on a...
US20130077798 REVERBERATION SUPPRESSION DEVICE, REVERBERATION SUPPRESSION METHOD, AND COMPUTER-READABLE STORAGE MEDIUM STORING A REVERBERATION SUPPRESSION PROGRAM  
A reverberation suppression device includes an analyzer configured to analyze change over time in the power of an input signal obtained from a microphone in response to sound input, and thereby...
US20130156211 WIDEBAND ACOUSTIC ECHO CANCELLATION APPARATUS WITH ADAPTIVE TAIL LENGTH IN EMBEDDED SYSTEM, AND WIDEBAND ACOUSTIC ECHO CANCELLATION METHOD  
A wideband acoustic echo cancellation apparatus with an adaptive tail length in an embedded system, and a wideband acoustic echo cancellation method are provided, and the wideband acoustic echo...
US20150124987 ENHANCEMENT OF REVERBERANT SPEECH BY BINARY MASK ESTIMATION  
The invention is directed to a single channel mask estimation method capable of improving reverberant speech identification for CI users. The method is based on the energy of the reverberant...
US20100322387 ENDPOINT ECHO DETECTION  
Architecture that employs a signal (e.g., audible or inaudible sounds) to detect if endpoints of a communications session are sufficiently close to each other to induce echo, and then control...
US20150163593 Estimating a Room Impulse Response  
Various methods and systems for estimating a room impulse response between an audio source and an array of microphones are described. In one example, a method includes receiving audio signals at a...
US20130230184 ECHO SUPPRESSION COMPRISING MODELING OF LATE REVERBERATION COMPONENTS  
An apparatus for computing filter coefficients for an adaptive filter is disclosed. The adaptive filter is used for filtering a microphone signal so as to suppress an echo due to a loudspeaker...
US20150124986 METHOD AND DEVICE FOR ELININATING ECHOES  
Provided are a method and device for eliminating echo. The method comprises: an echo path characteristic parameter of an echo signal is estimated; a source signal of the echo signal is taken as a...
US20140177857 METHOD OF PROCESSING A SIGNAL IN A HEARING INSTRUMENT, AND HEARING INSTRUMENT  
A method of processing a signal in a hearing instrument includes the steps of calculating a coherence between two microphone signals or microphone combination signals having different directional...
US20120170755 SYSTEMS AND METHODS FOR STEREO ECHO CANCELLATION  
Acoustic echoes in communications systems are distracting and undesirable. Acoustic echoes occur in communications systems where sound produced by a speaker is picked up by a microphone in a...
US20140064506 ELECTRONIC DEVICE AND METHOD FOR BLOCKING ECHO GENERATION BY ELIMINATING SOUND OUTPUT FROM SPEAKER  
A method for operating an electronic device including a first microphone and a second microphone to block the echo generation the electronic device is operated in a loudspeaker mode. The method...
US20130039503 BEAMFORMING APPARATUS AND METHOD BASED ON LONG-TERM PROPERTIES OF SOURCES OF UNDESIRED NOISE AFFECTING VOICE QUALITY  
A beamforming technique for a microphone array is described to attenuate a source of undesired noise that is deemed the most limiting to audio quality in an acoustic environment. Possible sources...
US20140307883 METHOD FOR DETERMINING A SET OF FILTER COEFFICIENTS FOR AN ACOUSTIC ECHO COMPENSATOR  
Methods and apparatus for beamforming and performing echo compensation for the beamformed signal with an echo canceller including calculating a set of filter coefficients as an estimate for a new...
US20150078565 Dual-Diaphragm Microphone Module to Reduce Vibration Noise  
A microphone module disposed in an electronic device for reducing echo noise. The microphone module includes a casing, a first diaphragm disposed in the casing, a second diaphragm disposed in the...
US20140139615 AUDIO CONFERENCING SYSTEM FOR ALL-IN-ONE DISPLAYS  
A conferencing system may comprise an electronic display configured to display remote video generated within a remote conference room, a speaker configured to reproduce remote audio generated...
US20060115095 Reverberation estimation and suppression system  
A signal processing system detects reverberation. The system may suppress the reverberation and improve signal quality. The system analyzes frequency bands of an input signal to determine whether...
US20100278351 Methods and systems for reducing acoustic echoes in multichannel communication systems by reducing the dimensionality of the space of impulse resopnses  
Various embodiments of the present invention are directed to adaptive methods for reducing acoustic echoes in multichannel audio communication systems. Acoustic echo cancellation methods determine...
US20120201370 TIME-DOMAIN ACOUSTIC ECHO CONTROL  
In one embodiment, an acoustic echo control (AEC) module receives an outgoing signal and an incoming signal, which, at various times, contains acoustic echo corresponding to the outgoing signal....
US20140112487 USING AN AUXILIARY DEVICE SENSOR TO FACILITATE DISAMBIGUATION OF DETECTED ACOUSTIC ENVIRONMENT CHANGES  
Audio input may be received at one or more microphones of a mobile device. Based on the audio input, a change in an acoustic environment of the device, such as a change in a direction of arrival...
US20110135105 ECHO CANCELLER  
An adaptive filter unit 103 outputs a send-mid signal obtained by eliminating echo from a send-in signal, and a power comparing unit 107 calculates a power ratio between received signal power and...
US20140211955 MICROPHONE HISS MITIGATION  
A system and method for mitigating microphone hiss may obtain a frequency spectrum characteristic for a microphone. A microphone that has limited dynamic range may create microphone hiss in an...
US20140270216 SINGLE-CHANNEL, BINAURAL AND MULTI-CHANNEL DEREVERBERATION  
A method is presented for estimating and suppressing reverberation from a digital reverberant signal. A method for changing a first reverberation estimation according to another reverberation...
US20150170668 Effective Pre-Echo Attenuation in a Digital Audio Signal  
A method is provided for processing pre-echo attenuation in a digital audio signal generated from a transform coding, wherein, at the decoding point, the method includes: detection of a position...
US20150249884 POST-PROCESSED REFERENCE PATH FOR ACOUSTIC ECHO CANCELLATION  
A system includes a speaker, an acoustic echo canceller, a post-processor configured to create a post-processed render signal associated with an audio input, and a reference path operatively...

Matches 1 - 50 out of 332 1 2 3 4 5 6 7 >