DE602006014836D1 - Verfahren und system zur echolöschung bei wenig verzögerung - Google Patents

Verfahren und system zur echolöschung bei wenig verzögerung

Info

Publication number
DE602006014836D1
DE602006014836D1 DE602006014836T DE602006014836T DE602006014836D1 DE 602006014836 D1 DE602006014836 D1 DE 602006014836D1 DE 602006014836 T DE602006014836 T DE 602006014836T DE 602006014836 T DE602006014836 T DE 602006014836T DE 602006014836 D1 DE602006014836 D1 DE 602006014836D1
Authority
DE
Germany
Prior art keywords
band
echo
low delay
echo removal
sub
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.)
Active
Application number
DE602006014836T
Other languages
English (en)
Inventor
Trygve Frederik Marton
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.)
Cisco Systems International SARL
Original Assignee
Tandberg Telecom AS
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 Tandberg Telecom AS filed Critical Tandberg Telecom AS
Publication of DE602006014836D1 publication Critical patent/DE602006014836D1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Telephone Function (AREA)
  • Electrotherapy Devices (AREA)
DE602006014836T 2005-07-13 2006-07-12 Verfahren und system zur echolöschung bei wenig verzögerung Active DE602006014836D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20053393A NO322301B1 (no) 2005-07-13 2005-07-13 Fremgangsmate og system for ekkokansellering med liten forsinkelse.
PCT/NO2006/000274 WO2007008086A1 (en) 2005-07-13 2006-07-12 Method and system for low delay echo cancelling

Publications (1)

Publication Number Publication Date
DE602006014836D1 true DE602006014836D1 (de) 2010-07-22

Family

ID=35295172

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602006014836T Active DE602006014836D1 (de) 2005-07-13 2006-07-12 Verfahren und system zur echolöschung bei wenig verzögerung

Country Status (9)

Country Link
US (1) US7822194B2 (de)
EP (1) EP1911258B1 (de)
JP (1) JP4611423B2 (de)
CN (1) CN101223767B (de)
AT (1) ATE471032T1 (de)
DE (1) DE602006014836D1 (de)
ES (1) ES2345507T3 (de)
NO (1) NO322301B1 (de)
WO (1) WO2007008086A1 (de)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8457614B2 (en) 2005-04-07 2013-06-04 Clearone Communications, Inc. Wireless multi-unit conference phone
CN101227537B (zh) * 2007-01-19 2010-12-01 中兴通讯股份有限公司 一种宽带声学回声消除方法
US8285554B2 (en) * 2007-07-27 2012-10-09 Dsp Group Limited Method and system for dynamic aliasing suppression
US8050398B1 (en) 2007-10-31 2011-11-01 Clearone Communications, Inc. Adaptive conferencing pod sidetone compensator connecting to a telephonic device having intermittent sidetone
US8199927B1 (en) 2007-10-31 2012-06-12 ClearOnce Communications, Inc. Conferencing system implementing echo cancellation and push-to-talk microphone detection using two-stage frequency filter
CN101222555B (zh) * 2008-01-25 2010-06-02 上海华平信息技术股份有限公司 改善音频通话质量的系统及方法
US9124769B2 (en) 2008-10-31 2015-09-01 The Nielsen Company (Us), Llc Methods and apparatus to verify presentation of media content
CN101562669B (zh) * 2009-03-11 2012-10-03 上海朗谷电子科技有限公司 自适应全双工全频段回声消除的方法
JP5424936B2 (ja) 2010-02-24 2014-02-26 パナソニック株式会社 通信端末及び通信方法
EP2444967A1 (de) * 2010-10-25 2012-04-25 Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V. Echounterdrückung mit Modellierung verzögerter Nachhallkomponenten
US9288578B2 (en) * 2012-10-23 2016-03-15 Electronics And Telecommunications Research Institute Method and apparatus for canceling acoustic echo, and method for updating adaptive filter coefficient by the apparatus
CN105144594B (zh) * 2013-05-14 2017-05-17 三菱电机株式会社 回声消除装置
CN105794190B (zh) 2013-12-12 2019-09-20 皇家飞利浦有限公司 一种音频回声抑制器及音频回声抑制方法
GB2519392B (en) * 2014-04-02 2016-02-24 Imagination Tech Ltd Auto-tuning of an acoustic echo canceller
US9947337B1 (en) * 2017-03-21 2018-04-17 Omnivision Technologies, Inc. Echo cancellation system and method with reduced residual echo
WO2021095127A1 (ja) * 2019-11-12 2021-05-20 日本電信電話株式会社 受信装置
CN111988708A (zh) * 2020-09-03 2020-11-24 昆腾微电子股份有限公司 一种基于单麦克风的啸叫抑制方法及装置
CN113079419A (zh) * 2021-03-30 2021-07-06 北京字跳网络技术有限公司 应用程序的视频处理方法和电子设备

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE461308B (sv) * 1988-06-03 1990-01-29 Ericsson Telefon Ab L M Adaptivt digitalt filter omfattande en icke rekursiv del och en rekursiv del
JPH03243020A (ja) * 1990-02-21 1991-10-30 Fujitsu Ltd サブバンド型エコーキャンセラ
US5610909A (en) * 1995-05-31 1997-03-11 Lucent Technologies Inc. Multistage echo canceler including time variation compensation
JP3199155B2 (ja) * 1995-10-18 2001-08-13 日本電信電話株式会社 反響消去装置
KR100330237B1 (ko) * 1999-07-19 2002-03-25 윤종용 반향 지연 추정 장치 및 방법
DE10012868C1 (de) * 2000-03-16 2001-07-26 Siemens Ag Rechnergerät mit Mehrwege-Akustikaus- und -eingabesystem
US8879432B2 (en) * 2002-09-27 2014-11-04 Broadcom Corporation Splitter and combiner for multiple data rate communication system
US6947549B2 (en) * 2003-02-19 2005-09-20 The Hong Kong Polytechnic University Echo canceller
NO320942B1 (no) * 2003-12-23 2006-02-13 Tandberg Telecom As System og fremgangsmate for forbedret stereolyd

Also Published As

Publication number Publication date
NO20053393A (no) 2006-09-11
CN101223767B (zh) 2012-05-23
NO20053393D0 (no) 2005-07-13
ES2345507T3 (es) 2010-09-24
EP1911258B1 (de) 2010-06-09
NO322301B1 (no) 2006-09-11
WO2007008086A1 (en) 2007-01-18
ATE471032T1 (de) 2010-06-15
JP2009501486A (ja) 2009-01-15
EP1911258A1 (de) 2008-04-16
JP4611423B2 (ja) 2011-01-12
US20070071254A1 (en) 2007-03-29
CN101223767A (zh) 2008-07-16
US7822194B2 (en) 2010-10-26

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