ATE464738T1 - Echolöschung - Google Patents

Echolöschung

Info

Publication number
ATE464738T1
ATE464738T1 AT05791147T AT05791147T ATE464738T1 AT E464738 T1 ATE464738 T1 AT E464738T1 AT 05791147 T AT05791147 T AT 05791147T AT 05791147 T AT05791147 T AT 05791147T AT E464738 T1 ATE464738 T1 AT E464738T1
Authority
AT
Austria
Prior art keywords
echo
echo cancellation
adaptive filter
producing
impulse response
Prior art date
Application number
AT05791147T
Other languages
English (en)
Inventor
Ivo Merks
Cornelius Janse
Rene Derkx
Original Assignee
Koninkl Philips Electronics Nv
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 Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Application granted granted Critical
Publication of ATE464738T1 publication Critical patent/ATE464738T1/de

Links

Classifications

    • 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
    • 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
    • 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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers
    • H04R3/002—Damping circuit arrangements for transducers, e.g. motional feedback circuits

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)
  • Computer Networks & Wireless Communication (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Telephone Function (AREA)
  • Primary Cells (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
AT05791147T 2004-10-13 2005-10-13 Echolöschung ATE464738T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP04105007 2004-10-13
PCT/IB2005/053365 WO2006040734A1 (en) 2004-10-13 2005-10-13 Echo cancellation

Publications (1)

Publication Number Publication Date
ATE464738T1 true ATE464738T1 (de) 2010-04-15

Family

ID=35686018

Family Applications (1)

Application Number Title Priority Date Filing Date
AT05791147T ATE464738T1 (de) 2004-10-13 2005-10-13 Echolöschung

Country Status (8)

Country Link
US (1) US9509854B2 (de)
EP (1) EP1803288B1 (de)
JP (1) JP5038143B2 (de)
KR (1) KR101185820B1 (de)
CN (1) CN101040512B (de)
AT (1) ATE464738T1 (de)
DE (1) DE602005020662D1 (de)
WO (1) WO2006040734A1 (de)

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WO2008122930A1 (en) * 2007-04-04 2008-10-16 Koninklijke Philips Electronics N.V. Sound enhancement in closed spaces
US7813498B2 (en) * 2007-07-27 2010-10-12 Fortemedia, Inc. Full-duplex communication device and method of acoustic echo cancellation therein
US8411871B2 (en) * 2007-08-22 2013-04-02 Lantiq Deutschland Gmbh Echo cancellation
CN101453532B (zh) * 2007-11-30 2013-03-20 博通集成电路（上海）有限公司 用于扬声器开关中的声音处理装置
JP2009290825A (ja) * 2008-06-02 2009-12-10 Yamaha Corp 音響エコーキャンセラ
EP2154911A1 (de) 2008-08-13 2010-02-17 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung zur Bestimmung eines räumlichen Mehrkanalausgangsaudiosignals
SE533956C2 (sv) 2009-07-20 2011-03-15 Limes Audio Ab Enhet och metod för styrning av restekodämpning
CN102687536B (zh) 2009-10-05 2017-03-08 哈曼国际工业有限公司 用于音频信号的空间提取的系统
JP5156043B2 (ja) * 2010-03-26 2013-03-06 株式会社東芝 音声判別装置
EP2444967A1 (de) * 2010-10-25 2012-04-25 Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V. Echounterdrückung mit Modellierung verzögerter Nachhallkomponenten
CN103329450B (zh) * 2011-05-10 2015-02-11 三菱电机株式会社 回波消除装置以及回波检测装置
CN102353942B (zh) * 2011-07-11 2013-10-30 哈尔滨工程大学 一种水下混响干扰的自适应抵消方法
JP5887535B2 (ja) * 2012-02-17 2016-03-16 パナソニックＩｐマネジメント株式会社 エコー消去装置、エコー消去方法、及び、通話装置
US9065895B2 (en) * 2012-02-22 2015-06-23 Broadcom Corporation Non-linear echo cancellation
CN102750956B (zh) * 2012-06-18 2014-07-16 歌尔声学股份有限公司 一种单通道语音去混响的方法和装置
GB2510331A (en) * 2012-12-21 2014-08-06 Microsoft Corp Echo suppression in an audio signal
GB2509493A (en) 2012-12-21 2014-07-09 Microsoft Corp Suppressing Echo in a received audio signal by estimating the echo power in the received audio signal based on an FIR filter estimate
GB2512022A (en) 2012-12-21 2014-09-24 Microsoft Corp Echo suppression
US9595997B1 (en) * 2013-01-02 2017-03-14 Amazon Technologies, Inc. Adaption-based reduction of echo and noise
US9530428B2 (en) * 2013-05-14 2016-12-27 Mitsubishi Electric Corporation Echo cancellation device
WO2016013667A1 (ja) * 2014-07-24 2016-01-28 株式会社エー・アール・アイ エコーキャンセラ装置
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
US10129410B2 (en) * 2014-12-15 2018-11-13 Mistubishi Electric Corporation Echo canceller device and echo cancel method
GB201518004D0 (en) * 2015-10-12 2015-11-25 Microsoft Technology Licensing Llc Audio signal processing
CN106571147B (zh) * 2016-11-13 2021-05-28 南京汉隆科技有限公司 用于网络话机声学回声抑制的方法
US20210409548A1 (en) * 2018-09-28 2021-12-30 Knowles Electronics, Llc Synthetic nonlinear acoustic echo cancellation systems and methods
CN113746494B (zh) * 2020-05-15 2022-10-18 华为技术有限公司 一种回波抵消方法及收发机
CN113963712B (zh) 2020-07-21 2025-07-25 华为技术有限公司 滤除回声的方法、电子设备和计算机可读存储介质
US12531047B2 (en) * 2023-05-09 2026-01-20 Nokia Technologies Oy Acoustic echo cancellation

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JPS6362420A (ja) 1986-09-03 1988-03-18 Fujitsu Ltd エコ−キヤンセラの並列処理方法
US5307405A (en) 1992-09-25 1994-04-26 Qualcomm Incorporated Network echo canceller
US5631899A (en) * 1995-05-31 1997-05-20 Lucent Technologies Inc. Acoustic echo canceler
US5610909A (en) * 1995-05-31 1997-03-11 Lucent Technologies Inc. Multistage echo canceler including time variation compensation
SE505150C3 (sv) * 1995-10-18 1997-08-04 Ericsson Telefon Ab L M Adaptivt ekoslaeckningsfoerfarande av dubbelfiltertyp
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EP0960521A4 (de) 1997-12-12 2004-08-04 Motorola Inc Verfahren und vorrichtung zur anpassung eines echokompensators in einem nachrichtenübertragungssystem
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JP2004537219A (ja) * 2001-07-20 2004-12-09 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 高調波計算のための非線形エコーサプレッサを備えたエコーキャンセラ
FR2831717A1 (fr) * 2001-10-25 2003-05-02 France Telecom Methode et systeme d'elimination d'interference pour antenne multicapteur
AU2002366410A1 (en) * 2001-12-14 2003-06-30 Koninklijke Philips Electronics N.V. Echo canceller having spectral echo tail estimator
US6961422B2 (en) * 2001-12-28 2005-11-01 Avaya Technology Corp. Gain control method for acoustic echo cancellation and suppression
JP2005530443A (ja) * 2002-06-19 2005-10-06 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 非定常エコーキャンセラ
WO2004008731A1 (en) 2002-07-16 2004-01-22 Koninklijke Philips Electronics N.V. Echo canceller with model mismatch compensation
CN1890892A (zh) * 2003-12-10 2007-01-03 皇家飞利浦电子股份有限公司 具有带有单独更新控制策略的自适应滤波器的串联布置的回波消除器

Also Published As

Publication number Publication date
EP1803288A1 (de) 2007-07-04
KR101185820B1 (ko) 2012-10-02
JP2008516545A (ja) 2008-05-15
EP1803288B1 (de) 2010-04-14
CN101040512B (zh) 2010-05-26
DE602005020662D1 (de) 2010-05-27
CN101040512A (zh) 2007-09-19
KR20070062605A (ko) 2007-06-15
WO2006040734A1 (en) 2006-04-20
US20080085009A1 (en) 2008-04-10
JP5038143B2 (ja) 2012-10-03
US9509854B2 (en) 2016-11-29

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