DE69705803T2 - Stereo akustische Echokompensation durch nichtlineare Transformationen - Google Patents

Stereo akustische Echokompensation durch nichtlineare Transformationen

Info

Publication number
DE69705803T2
DE69705803T2 DE69705803T DE69705803T DE69705803T2 DE 69705803 T2 DE69705803 T2 DE 69705803T2 DE 69705803 T DE69705803 T DE 69705803T DE 69705803 T DE69705803 T DE 69705803T DE 69705803 T2 DE69705803 T2 DE 69705803T2
Authority
DE
Germany
Prior art keywords
echo cancellation
acoustic echo
nonlinear transformations
stereo acoustic
stereo
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
DE69705803T
Other languages
English (en)
Other versions
DE69705803D1 (de
Inventor
Jacob Benesty
Dennis Raymond Morgan
Ii Hall
Man Mohan Sondhi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia of America Corp
Original Assignee
Lucent Technologies Inc
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 Lucent Technologies Inc filed Critical Lucent Technologies Inc
Application granted granted Critical
Publication of DE69705803D1 publication Critical patent/DE69705803D1/de
Publication of DE69705803T2 publication Critical patent/DE69705803T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Stereophonic System (AREA)
  • Telephonic Communication Services (AREA)
DE69705803T 1996-11-12 1997-10-07 Stereo akustische Echokompensation durch nichtlineare Transformationen Expired - Lifetime DE69705803T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/747,730 US5828756A (en) 1994-11-22 1996-11-12 Stereophonic acoustic echo cancellation using non-linear transformations

Publications (2)

Publication Number Publication Date
DE69705803D1 DE69705803D1 (de) 2001-08-30
DE69705803T2 true DE69705803T2 (de) 2002-04-04

Family

ID=25006387

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69705803T Expired - Lifetime DE69705803T2 (de) 1996-11-12 1997-10-07 Stereo akustische Echokompensation durch nichtlineare Transformationen

Country Status (5)

Country Link
US (1) US5828756A (de)
EP (1) EP0841799B1 (de)
JP (1) JP3405512B2 (de)
CA (1) CA2215592C (de)
DE (1) DE69705803T2 (de)

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US6181793B1 (en) * 1997-11-14 2001-01-30 Tellabs Operations, Inc. Echo canceller employing dual-H architecture having improved coefficient transfer
DE19801390A1 (de) * 1998-01-16 1999-07-22 Cit Alcatel Einrichtung und Verfahren zur Echounterdrückung mit adaptiven FIR-Filtern
DE19801389A1 (de) * 1998-01-16 1999-07-22 Cit Alcatel Verfahren zur Echounterdrückung mit adaptiven FIR-Filtern
AU2564999A (en) * 1998-01-27 1999-08-09 Collaboration Properties, Inc. Multifunction video communication service device
DE69908463T2 (de) * 1998-03-05 2004-05-13 Nippon Telegraph And Telephone Corp. Verfahren und Einrichtung zur mehrkanaligen Kompensation eines akustischen Echos
JP3319403B2 (ja) * 1998-09-02 2002-09-03 日本電気株式会社 多チャネルエコー除去方法及び装置
FR2793629B1 (fr) * 1999-05-12 2001-08-03 Matra Nortel Communications Procede et dispositif d'annulation d'echo stereophonique a filtrage dans le domaine frequentiel
US7660425B1 (en) * 1999-05-25 2010-02-09 British Telecommunications Plc Acoustic echo cancellation
JP4700871B2 (ja) 1999-06-24 2011-06-15 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 音響エコー及びノイズ除去
US6694020B1 (en) 1999-09-14 2004-02-17 Agere Systems, Inc. Frequency domain stereophonic acoustic echo canceller utilizing non-linear transformations
US7310425B1 (en) * 1999-12-28 2007-12-18 Agere Systems Inc. Multi-channel frequency-domain adaptive filter method and apparatus
US6377682B1 (en) 2000-06-26 2002-04-23 Lucent Technologies Inc. Robust adaptive filter for use in acoustic and network echo cancellation
US6766019B1 (en) 2000-07-21 2004-07-20 Agere Systems Inc. Method and apparatus for performing double-talk detection in acoustic echo cancellation
US6434235B1 (en) 2000-08-01 2002-08-13 Lucent Technologies Inc. Acoustic echo canceler
US20020054685A1 (en) * 2000-11-09 2002-05-09 Carlos Avendano System for suppressing acoustic echoes and interferences in multi-channel audio systems
JP3608525B2 (ja) * 2001-05-09 2005-01-12 ヤマハ株式会社 ２チャンネルエコーキャンセル用フィルタのインパルス応答設定方法および２チャンネルエコーキャンセラ並びに双方向２チャンネル音声伝送装置
FR2824982B1 (fr) * 2001-05-16 2003-07-04 France Telecom Procede de controle adaptatif de systeme d'annulation d'echo multivoies et dispositif pour mettre en oeuvre le procede
JP3506138B2 (ja) 2001-07-11 2004-03-15 ヤマハ株式会社 複数チャンネルエコーキャンセル方法、複数チャンネル音声伝送方法、ステレオエコーキャンセラ、ステレオ音声伝送装置および伝達関数演算装置
ATE551826T1 (de) * 2002-01-18 2012-04-15 Polycom Inc Digitale verknüpfung von mehrmikrofonsystemen
US20030185402A1 (en) * 2002-03-27 2003-10-02 Lucent Technologies, Inc. Adaptive distortion manager for use with an acoustic echo canceler and a method of operation thereof
US7155018B1 (en) 2002-04-16 2006-12-26 Microsoft Corporation System and method facilitating acoustic echo cancellation convergence detection
US7606330B2 (en) * 2002-09-27 2009-10-20 Broadcom Corporation Dual-rate single band communication system
JP4104626B2 (ja) 2003-02-07 2008-06-18 日本電信電話株式会社 収音方法及び収音装置
US7272224B1 (en) 2003-03-03 2007-09-18 Apple Inc. Echo cancellation
JP4094455B2 (ja) * 2003-03-05 2008-06-04 松下電器産業株式会社 ハウリング抑制装置
US20050213747A1 (en) * 2003-10-07 2005-09-29 Vtel Products, Inc. Hybrid monaural and multichannel audio for conferencing
NO319467B1 (no) * 2003-12-29 2005-08-15 Tandberg Telecom As System og fremgangsmate for forbedret subjektiv stereolyd
JP4333369B2 (ja) * 2004-01-07 2009-09-16 株式会社デンソー 雑音除去装置、及び音声認識装置、並びにカーナビゲーション装置
US8088146B2 (en) 2004-06-14 2012-01-03 Teleflex Medical Incorporated High-strength suture
US8687820B2 (en) * 2004-06-30 2014-04-01 Polycom, Inc. Stereo microphone processing for teleconferencing
US7720232B2 (en) 2004-10-15 2010-05-18 Lifesize Communications, Inc. Speakerphone
US7720236B2 (en) 2004-10-15 2010-05-18 Lifesize Communications, Inc. Updating modeling information based on offline calibration experiments
US7903137B2 (en) * 2004-10-15 2011-03-08 Lifesize Communications, Inc. Videoconferencing echo cancellers
US7760887B2 (en) 2004-10-15 2010-07-20 Lifesize Communications, Inc. Updating modeling information based on online data gathering
US8116500B2 (en) 2004-10-15 2012-02-14 Lifesize Communications, Inc. Microphone orientation and size in a speakerphone
JP4215015B2 (ja) * 2005-03-18 2009-01-28 ヤマハ株式会社 ハウリングキャンセラ及びこれを備えた拡声装置
US8249861B2 (en) * 2005-04-20 2012-08-21 Qnx Software Systems Limited High frequency compression integration
US8086451B2 (en) * 2005-04-20 2011-12-27 Qnx Software Systems Co. System for improving speech intelligibility through high frequency compression
US7593539B2 (en) 2005-04-29 2009-09-22 Lifesize Communications, Inc. Microphone and speaker arrangement in speakerphone
JP4652116B2 (ja) * 2005-05-09 2011-03-16 三菱電機株式会社 エコー消去装置
EP1855457B1 (de) * 2006-05-10 2009-07-08 Harman Becker Automotive Systems GmbH Kompensation von Mehrkanalechos durch Dekorrelation
US20080159551A1 (en) * 2006-12-28 2008-07-03 Texas Instruments Incorporated System and Method for Acoustic Echo Removal (AER)
WO2009129008A1 (en) * 2008-04-17 2009-10-22 University Of Utah Research Foundation Multi-channel acoustic echo cancellation system and method
US8125559B2 (en) * 2008-05-25 2012-02-28 Avistar Communications Corporation Image formation for large photosensor array surfaces
US8219400B2 (en) * 2008-11-21 2012-07-10 Polycom, Inc. Stereo to mono conversion for voice conferencing
US8208649B2 (en) * 2009-04-28 2012-06-26 Hewlett-Packard Development Company, L.P. Methods and systems for robust approximations of impulse responses in multichannel audio-communication systems
JP5565593B2 (ja) * 2009-10-01 2014-08-06 日本電気株式会社 信号処理方法、信号処理装置、及び信号処理プログラム
KR101930907B1 (ko) 2011-05-30 2019-03-12 삼성전자주식회사 오디오 신호 처리 방법, 그에 따른 오디오 장치, 및 그에 따른 전자기기
CN104054274B (zh) 2012-04-25 2016-05-25 三菱电机株式会社 回波消除装置
US9491561B2 (en) * 2013-04-11 2016-11-08 Broadcom Corporation Acoustic echo cancellation with internal upmixing
KR101415944B1 (ko) * 2013-12-30 2014-07-04 (주) 골프존 기상 상태에 대한 입체 음향을 제공하는 가상 골프 시뮬레이션 장치 및 방법
JP6398470B2 (ja) * 2014-08-27 2018-10-03 沖電気工業株式会社 ステレオエコー抑圧装置、エコー抑圧装置、ステレオエコー抑圧方法及びステレオエコー抑圧プログラム
DE102015222105A1 (de) * 2015-11-10 2017-05-11 Volkswagen Aktiengesellschaft Audiosignalverarbeitung in einem Fahrzeug
EP3393140A1 (de) * 2017-04-20 2018-10-24 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und verfahren zur multikanal-interferenzunterdrückung
US11303758B2 (en) * 2019-05-29 2022-04-12 Knowles Electronics, Llc System and method for generating an improved reference signal for acoustic echo cancellation

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Publication number Priority date Publication date Assignee Title
NL9002790A (nl) * 1990-12-18 1992-07-16 Philips Nv Echocompensator met verbeterde dubbelspraak detectie.
US5274705A (en) * 1991-09-24 1993-12-28 Tellabs Inc. Nonlinear processor for an echo canceller and method
JP2792311B2 (ja) * 1992-01-31 1998-09-03 日本電気株式会社 多チャンネルエコー除去方法および装置
US5327495A (en) * 1992-10-23 1994-07-05 Dsc Communications Corporation Apparatus and method for controlling an echo canceler
JPH06216811A (ja) * 1993-01-20 1994-08-05 Toshiba Corp エコーキャンセラを備えた音声通信装置

Also Published As

Publication number Publication date
JPH10190848A (ja) 1998-07-21
US5828756A (en) 1998-10-27
CA2215592C (en) 2000-12-05
EP0841799A3 (de) 1999-02-10
EP0841799A2 (de) 1998-05-13
JP3405512B2 (ja) 2003-05-12
EP0841799B1 (de) 2001-07-25
CA2215592A1 (en) 1998-05-12
DE69705803D1 (de) 2001-08-30

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