[go: up one dir, main page]

MX2010008372A - Aparato y metodo para calcular coeficientes de filtro para supresion de eco. - Google Patents

Aparato y metodo para calcular coeficientes de filtro para supresion de eco.

Info

Publication number
MX2010008372A
MX2010008372A MX2010008372A MX2010008372A MX2010008372A MX 2010008372 A MX2010008372 A MX 2010008372A MX 2010008372 A MX2010008372 A MX 2010008372A MX 2010008372 A MX2010008372 A MX 2010008372A MX 2010008372 A MX2010008372 A MX 2010008372A
Authority
MX
Mexico
Prior art keywords
signal
filter coefficients
computing
stationary component
echo suppression
Prior art date
Application number
MX2010008372A
Other languages
English (en)
Inventor
Christof Faller
Markus Kallinger
Alexis Favrot
Fabian Kuech
Original Assignee
Fraunhofer Ges Forschung
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fraunhofer Ges Forschung filed Critical Fraunhofer Ges Forschung
Publication of MX2010008372A publication Critical patent/MX2010008372A/es

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
    • H04M9/082—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic using echo cancellers
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0208—Noise filtering
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0208—Noise filtering
    • G10L2021/02082—Noise filtering the noise being echo, reverberation of the speech
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
    • H04B3/23—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other using a replica of transmitted signal in the time domain, e.g. echo cancellers
    • H04B3/237—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other using a replica of transmitted signal in the time domain, e.g. echo cancellers using two adaptive filters, e.g. for near end and for end echo cancelling

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Human Computer Interaction (AREA)
  • Quality & Reliability (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Telephone Function (AREA)

Abstract

Se describe un método y aparato para calcular coeficientes de filtro para supresión de eco. Una modalidad de un aparato (200) para calcular coeficientes de filtro para un filtro adaptable (210) para la filtración de una señal de micrófono para suprimir el eco debido a una señal de altavoz incluye medios de extracción (250) para extraer una señal componente estacionaria o una señal componente no estacionaria de la señal de altavoz o de una señal derivada de la señal de altavoz y medios de cálculo (270) para calcular los coeficientes de filtro para el filtro adaptable (210) en base a la señal componente estacionaria extraída o la señal componente no estacionaria extraída.
MX2010008372A 2008-01-31 2009-01-16 Aparato y metodo para calcular coeficientes de filtro para supresion de eco. MX2010008372A (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US2500608P 2008-01-31 2008-01-31
DE102008039330A DE102008039330A1 (de) 2008-01-31 2008-08-22 Vorrichtung und Verfahren zum Berechnen von Filterkoeffizienten zur Echounterdrückung
PCT/EP2009/000270 WO2009095161A1 (en) 2008-01-31 2009-01-16 Apparatus and method for computing filter coefficients for echo suppression

Publications (1)

Publication Number Publication Date
MX2010008372A true MX2010008372A (es) 2010-08-23

Family

ID=40847455

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2010008372A MX2010008372A (es) 2008-01-31 2009-01-16 Aparato y metodo para calcular coeficientes de filtro para supresion de eco.

Country Status (12)

Country Link
US (1) US8462958B2 (es)
EP (1) EP2238590B1 (es)
JP (1) JP4954334B2 (es)
KR (1) KR101169535B1 (es)
CN (1) CN101933088B (es)
AU (1) AU2009210295B9 (es)
CA (1) CA2713450C (es)
DE (1) DE102008039330A1 (es)
ES (1) ES2585406T3 (es)
MX (1) MX2010008372A (es)
TW (1) TWI388190B (es)
WO (1) WO2009095161A1 (es)

Families Citing this family (108)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8949120B1 (en) 2006-05-25 2015-02-03 Audience, Inc. Adaptive noise cancelation
US8150052B2 (en) * 2008-10-15 2012-04-03 Hewlett-Packard Development Company, L.P. Integrating acoustic echo cancellation as a subsystem into an existing videoconference and telepresence system
US8718290B2 (en) 2010-01-26 2014-05-06 Audience, Inc. Adaptive noise reduction using level cues
US8473287B2 (en) 2010-04-19 2013-06-25 Audience, Inc. Method for jointly optimizing noise reduction and voice quality in a mono or multi-microphone system
US8798290B1 (en) 2010-04-21 2014-08-05 Audience, Inc. Systems and methods for adaptive signal equalization
EP2986034B1 (en) * 2010-05-06 2017-05-31 Dolby Laboratories Licensing Corporation Audio system equalization for portable media playback devices
US9307340B2 (en) 2010-05-06 2016-04-05 Dolby Laboratories Licensing Corporation Audio system equalization for portable media playback devices
US9245538B1 (en) * 2010-05-20 2016-01-26 Audience, Inc. Bandwidth enhancement of speech signals assisted by noise reduction
EP2444967A1 (en) 2010-10-25 2012-04-25 Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V. Echo suppression comprising modeling of late reverberation components
BR112013016222B1 (pt) * 2011-02-03 2020-12-15 Telefonaktiebolaget L M Ericsson (Publ) Método de estimar a potência de eco, método de supressão de eco, estimador de potência de eco harmônico, cancelador de eco, e, equipamento de usuário
CN105472525B (zh) 2011-07-01 2018-11-13 杜比实验室特许公司 音频回放系统监视
US20130066638A1 (en) * 2011-09-09 2013-03-14 Qnx Software Systems Limited Echo Cancelling-Codec
US8896651B2 (en) * 2011-10-27 2014-11-25 Polycom, Inc. Portable devices as videoconferencing peripherals
US9084058B2 (en) 2011-12-29 2015-07-14 Sonos, Inc. Sound field calibration using listener localization
US8737188B1 (en) * 2012-01-11 2014-05-27 Audience, Inc. Crosstalk cancellation systems and methods
US9524638B2 (en) * 2012-02-08 2016-12-20 Qualcomm Incorporated Controlling mobile device based on sound identification
US9173025B2 (en) 2012-02-08 2015-10-27 Dolby Laboratories Licensing Corporation Combined suppression of noise, echo, and out-of-location signals
US8712076B2 (en) 2012-02-08 2014-04-29 Dolby Laboratories Licensing Corporation Post-processing including median filtering of noise suppression gains
JP5897343B2 (ja) * 2012-02-17 2016-03-30 株式会社日立製作所 残響除去パラメータ推定装置及び方法、残響・エコー除去パラメータ推定装置、残響除去装置、残響・エコー除去装置、並びに、残響除去装置オンライン会議システム
CN103325380B (zh) 2012-03-23 2017-09-12 杜比实验室特许公司 用于信号增强的增益后处理
CN103325379A (zh) 2012-03-23 2013-09-25 杜比实验室特许公司 用于声学回声控制的方法与装置
US9106192B2 (en) 2012-06-28 2015-08-11 Sonos, Inc. System and method for device playback calibration
CN103516921A (zh) 2012-06-28 2014-01-15 杜比实验室特许公司 通过隐藏音频信号的回声控制
JP5296247B1 (ja) * 2012-07-02 2013-09-25 リオン株式会社 音処理装置及びフィードバックキャンセル方法
US9640194B1 (en) 2012-10-04 2017-05-02 Knowles Electronics, Llc Noise suppression for speech processing based on machine-learning mask estimation
US9768884B2 (en) * 2012-10-17 2017-09-19 Acacia Communications, Inc. Multi-range frequency-domain compensation of chromatic dispersion
EP2760024B1 (en) * 2013-01-29 2017-08-02 2236008 Ontario Inc. Noise estimation control
US9318092B2 (en) 2013-01-29 2016-04-19 2236008 Ontario Inc. Noise estimation control system
US9536540B2 (en) 2013-07-19 2017-01-03 Knowles Electronics, Llc Speech signal separation and synthesis based on auditory scene analysis and speech modeling
JP6087762B2 (ja) * 2013-08-13 2017-03-01 日本電信電話株式会社 残響抑圧装置とその方法と、プログラムとその記録媒体
GB2515592B (en) * 2013-12-23 2016-11-30 Imagination Tech Ltd Echo path change detector
JP6295722B2 (ja) * 2014-02-28 2018-03-20 沖電気工業株式会社 エコー抑圧装置、プログラム及び方法
JP6349899B2 (ja) * 2014-04-14 2018-07-04 ヤマハ株式会社 放収音装置
US9398374B2 (en) * 2014-08-12 2016-07-19 Cirrus Logic, Inc. Systems and methods for nonlinear echo cancellation
DE112015003945T5 (de) 2014-08-28 2017-05-11 Knowles Electronics, Llc Mehrquellen-Rauschunterdrückung
US9479650B1 (en) * 2015-05-04 2016-10-25 Captioncall, Llc Methods and devices for updating filter coefficients during echo cancellation
US10504501B2 (en) 2016-02-02 2019-12-10 Dolby Laboratories Licensing Corporation Adaptive suppression for removing nuisance audio
US10264030B2 (en) 2016-02-22 2019-04-16 Sonos, Inc. Networked microphone device control
US9947316B2 (en) 2016-02-22 2018-04-17 Sonos, Inc. Voice control of a media playback system
US10095470B2 (en) 2016-02-22 2018-10-09 Sonos, Inc. Audio response playback
US10097919B2 (en) 2016-02-22 2018-10-09 Sonos, Inc. Music service selection
US9811314B2 (en) 2016-02-22 2017-11-07 Sonos, Inc. Metadata exchange involving a networked playback system and a networked microphone system
US9763018B1 (en) 2016-04-12 2017-09-12 Sonos, Inc. Calibration of audio playback devices
US9978390B2 (en) 2016-06-09 2018-05-22 Sonos, Inc. Dynamic player selection for audio signal processing
KR20170142001A (ko) * 2016-06-16 2017-12-27 삼성전자주식회사 전자 장치, 그의 반향 신호 제거 방법 및 비일시적 컴퓨터 판독가능 기록매체
US9922637B2 (en) 2016-07-11 2018-03-20 Microsoft Technology Licensing, Llc Microphone noise suppression for computing device
US10134399B2 (en) 2016-07-15 2018-11-20 Sonos, Inc. Contextualization of voice inputs
US10372406B2 (en) 2016-07-22 2019-08-06 Sonos, Inc. Calibration interface
US10115400B2 (en) 2016-08-05 2018-10-30 Sonos, Inc. Multiple voice services
US9942678B1 (en) 2016-09-27 2018-04-10 Sonos, Inc. Audio playback settings for voice interaction
US10181323B2 (en) 2016-10-19 2019-01-15 Sonos, Inc. Arbitration-based voice recognition
CA2985433C (en) * 2016-11-14 2019-03-19 Symroc Business And Project Management Ltd. Vibration-analysis system and method therefor
CN110301142B (zh) * 2017-02-24 2021-05-14 Jvc建伍株式会社 滤波器生成装置、滤波器生成方法以及存储介质
US11183181B2 (en) 2017-03-27 2021-11-23 Sonos, Inc. Systems and methods of multiple voice services
JP7122756B2 (ja) * 2017-06-12 2022-08-22 株式会社オーディオテクニカ 音声信号処理装置と音声信号処理方法と音声信号処理プログラム
US10475449B2 (en) 2017-08-07 2019-11-12 Sonos, Inc. Wake-word detection suppression
US10048930B1 (en) 2017-09-08 2018-08-14 Sonos, Inc. Dynamic computation of system response volume
CN107644649B (zh) * 2017-09-13 2022-06-03 黄河科技学院 一种信号处理方法
US10446165B2 (en) * 2017-09-27 2019-10-15 Sonos, Inc. Robust short-time fourier transform acoustic echo cancellation during audio playback
US10482868B2 (en) 2017-09-28 2019-11-19 Sonos, Inc. Multi-channel acoustic echo cancellation
US10051366B1 (en) 2017-09-28 2018-08-14 Sonos, Inc. Three-dimensional beam forming with a microphone array
US10621981B2 (en) 2017-09-28 2020-04-14 Sonos, Inc. Tone interference cancellation
US10466962B2 (en) 2017-09-29 2019-11-05 Sonos, Inc. Media playback system with voice assistance
US10880650B2 (en) 2017-12-10 2020-12-29 Sonos, Inc. Network microphone devices with automatic do not disturb actuation capabilities
US10818290B2 (en) 2017-12-11 2020-10-27 Sonos, Inc. Home graph
US11017798B2 (en) 2017-12-29 2021-05-25 Harman Becker Automotive Systems Gmbh Dynamic noise suppression and operations for noisy speech signals
WO2019152722A1 (en) 2018-01-31 2019-08-08 Sonos, Inc. Device designation of playback and network microphone device arrangements
US11175880B2 (en) 2018-05-10 2021-11-16 Sonos, Inc. Systems and methods for voice-assisted media content selection
US10959029B2 (en) 2018-05-25 2021-03-23 Sonos, Inc. Determining and adapting to changes in microphone performance of playback devices
US10681460B2 (en) 2018-06-28 2020-06-09 Sonos, Inc. Systems and methods for associating playback devices with voice assistant services
US10461710B1 (en) 2018-08-28 2019-10-29 Sonos, Inc. Media playback system with maximum volume setting
US11076035B2 (en) 2018-08-28 2021-07-27 Sonos, Inc. Do not disturb feature for audio notifications
US10587430B1 (en) 2018-09-14 2020-03-10 Sonos, Inc. Networked devices, systems, and methods for associating playback devices based on sound codes
US11024331B2 (en) 2018-09-21 2021-06-01 Sonos, Inc. Voice detection optimization using sound metadata
US10811015B2 (en) 2018-09-25 2020-10-20 Sonos, Inc. Voice detection optimization based on selected voice assistant service
US11100923B2 (en) 2018-09-28 2021-08-24 Sonos, Inc. Systems and methods for selective wake word detection using neural network models
US10692518B2 (en) 2018-09-29 2020-06-23 Sonos, Inc. Linear filtering for noise-suppressed speech detection via multiple network microphone devices
US11899519B2 (en) 2018-10-23 2024-02-13 Sonos, Inc. Multiple stage network microphone device with reduced power consumption and processing load
EP3654249A1 (en) 2018-11-15 2020-05-20 Snips Dilated convolutions and gating for efficient keyword spotting
US11183183B2 (en) 2018-12-07 2021-11-23 Sonos, Inc. Systems and methods of operating media playback systems having multiple voice assistant services
US10602268B1 (en) 2018-12-20 2020-03-24 Sonos, Inc. Optimization of network microphone devices using noise classification
US10867604B2 (en) 2019-02-08 2020-12-15 Sonos, Inc. Devices, systems, and methods for distributed voice processing
US11120794B2 (en) 2019-05-03 2021-09-14 Sonos, Inc. Voice assistant persistence across multiple network microphone devices
CN112292844B (zh) * 2019-05-22 2022-04-15 深圳市汇顶科技股份有限公司 双端通话检测方法、双端通话检测装置以及回声消除系统
US11200894B2 (en) 2019-06-12 2021-12-14 Sonos, Inc. Network microphone device with command keyword eventing
US11138969B2 (en) 2019-07-31 2021-10-05 Sonos, Inc. Locally distributed keyword detection
US10871943B1 (en) 2019-07-31 2020-12-22 Sonos, Inc. Noise classification for event detection
US11189286B2 (en) 2019-10-22 2021-11-30 Sonos, Inc. VAS toggle based on device orientation
US11200900B2 (en) 2019-12-20 2021-12-14 Sonos, Inc. Offline voice control
US11562740B2 (en) 2020-01-07 2023-01-24 Sonos, Inc. Voice verification for media playback
CN113160782B (zh) * 2020-01-22 2022-11-01 百度在线网络技术（北京）有限公司 音频处理的方法、装置、电子设备及可读存储介质
US11556307B2 (en) 2020-01-31 2023-01-17 Sonos, Inc. Local voice data processing
US11308958B2 (en) 2020-02-07 2022-04-19 Sonos, Inc. Localized wakeword verification
US12205608B2 (en) 2020-03-17 2025-01-21 Dolby Laboratories Licensing Corporation Wideband adaptation of echo path changes in an acoustic echo canceller
US12231603B2 (en) 2020-03-23 2025-02-18 Dolby Laboratories Licensing Corporation Echo residual suppression
US11308962B2 (en) 2020-05-20 2022-04-19 Sonos, Inc. Input detection windowing
US11482224B2 (en) 2020-05-20 2022-10-25 Sonos, Inc. Command keywords with input detection windowing
US12387716B2 (en) 2020-06-08 2025-08-12 Sonos, Inc. Wakewordless voice quickstarts
US11698771B2 (en) 2020-08-25 2023-07-11 Sonos, Inc. Vocal guidance engines for playback devices
US12283269B2 (en) 2020-10-16 2025-04-22 Sonos, Inc. Intent inference in audiovisual communication sessions
US11984123B2 (en) 2020-11-12 2024-05-14 Sonos, Inc. Network device interaction by range
WO2022103290A1 (en) 2020-11-12 2022-05-19 "Stc"-Innovations Limited" Method for automatic quality evaluation of speech signals using neural networks for selecting a channel in multimicrophone systems
CN113345456B (zh) * 2021-05-31 2023-06-06 北京小米移动软件有限公司 回声分离方法、装置及存储介质
WO2023056258A1 (en) 2021-09-30 2023-04-06 Sonos, Inc. Conflict management for wake-word detection processes
US20250159083A1 (en) * 2021-09-30 2025-05-15 Dolby Laboratories Licensing Corporation Robust foreground/background filtering control for acoustic echo cancellation
US12327556B2 (en) 2021-09-30 2025-06-10 Sonos, Inc. Enabling and disabling microphones and voice assistants
US12327549B2 (en) 2022-02-09 2025-06-10 Sonos, Inc. Gatekeeping for voice intent processing
US12363260B1 (en) 2023-04-27 2025-07-15 Zoom Communications, Inc. Correcting audio feedback using contextual information

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61242127A (ja) * 1985-04-19 1986-10-28 Fujitsu Ltd エコ−キヤンセラ
JPS62110336A (ja) * 1985-11-08 1987-05-21 Matsushita Electric Ind Co Ltd エコ−キヤンセル装置
JPH01129623A (ja) * 1987-11-16 1989-05-22 Hitachi Ltd エコーキヤンセラ
JPH04335721A (ja) * 1991-05-13 1992-11-24 Matsushita Electric Ind Co Ltd エコーキャンセラー装置
JPH0832494A (ja) * 1994-07-13 1996-02-02 Mitsubishi Electric Corp ハンズフリー通話装置
JP2947093B2 (ja) 1994-11-02 1999-09-13 日本電気株式会社 適応フィルタによるシステム同定の方法および装置
US5610909A (en) * 1995-05-31 1997-03-11 Lucent Technologies Inc. Multistage echo canceler including time variation compensation
US5872728A (en) 1996-06-20 1999-02-16 International Business Machines Corporation Process for computing the coefficients of an adaptive filter in an echo-cancellor
US5930366A (en) 1997-08-29 1999-07-27 Telefonaktiebolaget L M Ericsson Synchronization to a base station and code acquisition within a spread spectrum communication system
US6442275B1 (en) 1998-09-17 2002-08-27 Lucent Technologies Inc. Echo canceler including subband echo suppressor
US6590881B1 (en) 1998-12-04 2003-07-08 Qualcomm, Incorporated Method and apparatus for providing wireless communication system synchronization
FR2791492B1 (fr) * 1999-03-26 2001-06-08 France Telecom Procede et dispositif d'identification adaptative, et annuleur d'echo adaptatif mettant en oeuvre un tel procede
US6665645B1 (en) * 1999-07-28 2003-12-16 Matsushita Electric Industrial Co., Ltd. Speech recognition apparatus for AV equipment
JP4345208B2 (ja) * 2000-08-25 2009-10-14 沖電気工業株式会社 反響及び雑音除去装置
JP3507020B2 (ja) * 2000-09-08 2004-03-15 日本電信電話株式会社 反響抑圧方法、反響抑圧装置及び反響抑圧プログラム記憶媒体
JP2002111552A (ja) * 2000-09-29 2002-04-12 Fujitsu Ltd 音響エコーキャンセラ及びハンズフリー電話機
WO2002101728A1 (es) * 2001-06-11 2002-12-19 Lear Automotive (Eeds) Spain, S.L. Metodo y sistema para cancelacion de exos y ruidos en entornos con condiciones acusticas variables y altamente realimentados
EP1518393A1 (en) * 2002-06-19 2005-03-30 Koninklijke Philips Electronics N.V. Non stationary echo canceller
US7889804B2 (en) 2003-05-30 2011-02-15 Mohammad Jaber Borran Partially coherent constellations for multiple-antenna systems
JP4403776B2 (ja) * 2003-11-05 2010-01-27 沖電気工業株式会社 エコーキャンセラ
DE602004008973T2 (de) 2004-05-14 2008-05-15 Loquendo-Società per Azioni Rauschminderung für die automatische spracherkennung
US7383179B2 (en) * 2004-09-28 2008-06-03 Clarity Technologies, Inc. Method of cascading noise reduction algorithms to avoid speech distortion
WO2006111370A1 (en) 2005-04-19 2006-10-26 Epfl (Ecole Polytechnique Federale De Lausanne) A method and device for removing echo in a multi-channel audio signal
EP1715669A1 (en) * 2005-04-19 2006-10-25 Ecole Polytechnique Federale De Lausanne (Epfl) A method for removing echo in an audio signal
EP1879181B1 (en) * 2006-07-11 2014-05-21 Nuance Communications, Inc. Method for compensation audio signal components in a vehicle communication system and system therefor

Also Published As

Publication number Publication date
US20110019833A1 (en) 2011-01-27
JP2011514706A (ja) 2011-05-06
TWI388190B (zh) 2013-03-01
US8462958B2 (en) 2013-06-11
EP2238590A1 (en) 2010-10-13
ES2585406T3 (es) 2016-10-05
CA2713450C (en) 2014-07-29
EP2238590B1 (en) 2016-06-01
KR20100114059A (ko) 2010-10-22
AU2009210295A1 (en) 2009-08-06
BRPI0905794A2 (pt) 2020-08-11
KR101169535B1 (ko) 2012-07-31
JP4954334B2 (ja) 2012-06-13
RU2010132161A (ru) 2012-02-10
AU2009210295B9 (en) 2014-01-30
WO2009095161A1 (en) 2009-08-06
HK1149622A1 (zh) 2011-10-07
DE102008039330A1 (de) 2009-08-13
CN101933088A (zh) 2010-12-29
CN101933088B (zh) 2016-05-11
AU2009210295B2 (en) 2013-05-02
CA2713450A1 (en) 2009-08-06
TW200948030A (en) 2009-11-16

Similar Documents

Publication Publication Date Title
MX2010008372A (es) Aparato y metodo para calcular coeficientes de filtro para supresion de eco.
EP2779162A3 (en) Removal of audio noise
MY164797A (en) Apparatus and method for processing a decoded audio signal in a spectral domain
GB201121147D0 (en) Processing audio signals
MX2013004602A (es) Supresion de eco que comprende el modelado de componentes de reverberacion tardia.
EP2369853A3 (en) Apparatus and method for reducing noise input from a rear direction
WO2013060574A3 (de) Geräuschunterdrückungssystem und verfahren zur geräuschunterdrückung
MX2010004192A (es) Sistema robusto de supresion de ruido de dos microfonos.
EP2804177A3 (en) Method for processing an audio signal and audio receiving circuit
WO2013162994A3 (en) Systems and methods for audio signal processing
WO2011022404A3 (en) Methods and apparatus for interference decrease/cancellation on downlink acquisition signals
DE602007004738D1 (de) Verfahren zur unterdrückung akustischer restechos nach echounterdrückung bei einer freisprecheinrichtung
GB2509611A (en) DC offset compensation
ATE476733T1 (de) Verfahren zum verarbeiten eines rauschbehafteten tonsignals und einrichtung zur implementierung des verfahrens
WO2010104300A3 (en) An apparatus for processing an audio signal and method thereof
EP2533237A3 (en) Signal processing device and signal processing method
EP2863392A3 (en) Noise reduction in multi-microphone systems
ATE522985T1 (de) Akustische echokompensierung
JP2012253653A5 (es)
EP2264963A3 (en) Transform domain multi-user detection and interference suppression apparatus for femtocell
ATE491202T1 (de) Kompensation der variabilität zwischen sitzungen zur automatischen extraktion von informationen aus sprache
WO2012112383A8 (en) Enhancing fine time structure transmission for hearing implant system
WO2009137619A3 (en) Frequency spur detection and suppression
WO2015112266A3 (en) Epsilon-tube filter for blunt noise removal
EP2541548A3 (en) Signal processing apparatus, signal processing method, and program

Legal Events

Date Code Title Description
FG Grant or registration