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)
  • Computational Linguistics (AREA)
  • Quality & Reliability (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (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)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4476355B2 (ja) * 2006-05-04 2010-06-09 株式会社ソニー・コンピュータエンタテインメント エコー及びノイズキャンセレーション
US8036767B2 (en) 2006-09-20 2011-10-11 Harman International Industries, Incorporated System for extracting and changing the reverberant content of an audio input signal
JP4928922B2 (ja) * 2006-12-01 2012-05-09 株式会社東芝 情報処理装置、およびプログラム
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
KR101387195B1 (ko) 2009-10-05 2014-04-21 하만인터내셔날인더스트리스인코포레이티드 오디오 신호의 공간 추출 시스템
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
US9286881B2 (en) 2011-05-10 2016-03-15 Mitsubishi Electric Corporation Echo canceler and echo detector
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
GB2512022A (en) 2012-12-21 2014-09-24 Microsoft Corp Echo suppression
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
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
CN107005268B (zh) * 2014-12-15 2020-06-16 三菱电机株式会社 回波消除装置和回波消除方法
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
WO2020069310A1 (en) * 2018-09-28 2020-04-02 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

Family Cites Families (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4582963A (en) * 1982-07-29 1986-04-15 Rockwell International Corporation Echo cancelling using adaptive bulk delay and filter
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
US5610909A (en) * 1995-05-31 1997-03-11 Lucent Technologies Inc. Multistage echo canceler including time variation compensation
US5631899A (en) * 1995-05-31 1997-05-20 Lucent Technologies Inc. Acoustic echo canceler
SE505150C3 (sv) * 1995-10-18 1997-08-04 Ericsson Telefon Ab L M Adaptivt ekoslaeckningsfoerfarande av dubbelfiltertyp
US5937060A (en) 1996-02-09 1999-08-10 Texas Instruments Incorporated Residual echo suppression
JPH09289474A (ja) * 1996-04-23 1997-11-04 Saitama Nippon Denki Kk ハンズフリー通話装置
EP0843934B1 (de) * 1996-05-31 2007-11-14 Koninklijke Philips Electronics N.V. Einrichtung zur unterdrückung einer störenden komponente eines eingangssignals
US5909384A (en) * 1996-10-04 1999-06-01 Conexant Systems, Inc. System for dynamically adapting the length of a filter
US6301357B1 (en) 1996-12-31 2001-10-09 Ericsson Inc. AC-center clipper for noise and echo suppression in a communications system
US7146012B1 (en) 1997-11-22 2006-12-05 Koninklijke Philips Electronics N.V. Audio processing arrangement with multiple sources
AU1411299A (en) 1997-12-12 1999-07-05 Motorola, Inc. Apparatus and method for adapting an echo canceller in a communication system
US6570985B1 (en) 1998-01-09 2003-05-27 Ericsson Inc. Echo canceler adaptive filter optimization
US6442275B1 (en) 1998-09-17 2002-08-27 Lucent Technologies Inc. Echo canceler including subband echo suppressor
US6658107B1 (en) 1998-10-23 2003-12-02 Telefonaktiebolaget Lm Ericsson (Publ) Methods and apparatus for providing echo suppression using frequency domain nonlinear processing
EP1110315B1 (de) * 1999-06-24 2008-03-26 Koninklijke Philips Electronics N.V. Akustische echo- und rauschkompensation
DE19935808A1 (de) * 1999-07-29 2001-02-08 Ericsson Telefon Ab L M Echounterdrückungseinrichtung zum Unterdrücken von Echos in einer Sender/Empfänger-Einheit
US6526140B1 (en) * 1999-11-03 2003-02-25 Tellabs Operations, Inc. Consolidated voice activity detection and noise estimation
US6622030B1 (en) 2000-06-29 2003-09-16 Ericsson Inc. Echo suppression using adaptive gain based on residual echo energy
CN1533665A (zh) * 2001-07-20 2004-09-29 皇家菲利浦电子有限公司 含有用于谐波计算的非线性回波抑制器的回波消除器
WO2003010949A1 (en) * 2001-07-20 2003-02-06 Koninklijke Philips Electronics N.V. Communication system having line and acoustic echo canceling means with spectral post processors
FR2831717A1 (fr) * 2001-10-25 2003-05-02 France Telecom Methode et systeme d'elimination d'interference pour antenne multicapteur
EP1459510A1 (de) 2001-12-14 2004-09-22 Koninklijke Philips Electronics N.V. Echolöscher mit spektral-echonachspannschätzer
US6961422B2 (en) * 2001-12-28 2005-11-01 Avaya Technology Corp. Gain control method for acoustic echo cancellation and suppression
AU2003233019A1 (en) * 2002-06-19 2004-01-06 Koninklijke Philips Electronics N.V. Non stationary echo canceller
CN1669294A (zh) * 2002-07-16 2005-09-14 皇家飞利浦电子股份有限公司 具有模型失配补偿的回声消除器
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
US9509854B2 (en) 2016-11-29
CN101040512A (zh) 2007-09-19
CN101040512B (zh) 2010-05-26
JP2008516545A (ja) 2008-05-15
DE602005020662D1 (de) 2010-05-27
EP1803288B1 (de) 2010-04-14
JP5038143B2 (ja) 2012-10-03
KR101185820B1 (ko) 2012-10-02
EP1803288A1 (de) 2007-07-04
US20080085009A1 (en) 2008-04-10
KR20070062605A (ko) 2007-06-15
WO2006040734A1 (en) 2006-04-20

Similar Documents

Publication Publication Date Title
ATE464738T1 (de) Echolöschung
CN107454491B (zh) 一种移动终端
TW200718155A (en) Improved echo cacellation in telephones with multiple microphones
ATE460809T1 (de) Akustischer echokompensator
CA2453867A1 (en) Echo cancellation/suppression and double-talk detection in communication paths
WO2009134882A3 (en) Method and apparatus to reduce non-linear distortion
WO2009156756A3 (en) Noise cancellation system
WO2012075343A3 (en) Oversight control of an adaptive noise canceler in a personal audio device
EP1978649A3 (de) Spektrumdomäne, nicht lineares Echoabbruchsverfahren und freihändige Vorrichtung
EP2793225A3 (de) Bandbegrenzender Rauschschutz in persönlichen Audiovorrichtungen mit adaptiver Rauschunterdrückung (ANC)
EP1122897A4 (de) Gerät und anordnung zum verhindern eines telefonrufs
EP1676373A4 (de) Vollduplex-hochfrequenz-echolöschung
WO2009035099A1 (ja) 携帯電話
ATE484915T1 (de) Mobilfunkendgerät mit lautsprecherportauswahl und verfahren
WO2013121306A3 (en) Audio signal processing in a communication system
ATE366501T1 (de) Netzwerk-echounterdrückung in mobilstationen
EP2741481A3 (de) Subband-Domänenechomaskierung für verbesserte Duplexität von spektralen Domänenechounterdrückern
NL1020685A1 (nl) Tweewegluidspreker voor mobiele telefoons.
FR2908005B1 (fr) Circuit de reduction de l'echo acoustique pour un dispositif "mains libres"utilisable avec un telephone portable
DE60210739D1 (de) Spracheingabegerät mit Geräuschunterdrückung
JP2005533427A5 (de)
WO2007120734A3 (en) Environmental noise reduction and cancellation for cellular telephone and voice over internet packets (voip) communication devices
GB2427332B (en) Systems and methods for adaptive echo cancellation
ATE435562T1 (de) Freisprechelektronik und verfahren zum betrieb einer freisprechelektronik
CN103716478B (zh) 双向回音消除方法

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties