DE602005003643D1 - Verfahren zur Beschleunigung des Trainings eines akustischen Echokompensators in einem Vollduplexaudiokonferenzsystem durch akustische Strahlbildung - Google Patents

Verfahren zur Beschleunigung des Trainings eines akustischen Echokompensators in einem Vollduplexaudiokonferenzsystem durch akustische Strahlbildung

Info

Publication number
DE602005003643D1
DE602005003643D1 DE602005003643T DE602005003643T DE602005003643D1 DE 602005003643 D1 DE602005003643 D1 DE 602005003643D1 DE 602005003643 T DE602005003643 T DE 602005003643T DE 602005003643 T DE602005003643 T DE 602005003643T DE 602005003643 D1 DE602005003643 D1 DE 602005003643D1
Authority
DE
Germany
Prior art keywords
acoustic
accelerating
training
full duplex
echo canceller
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
DE602005003643T
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English (en)
Other versions
DE602005003643T2 (de
Inventor
Franck Beaucoup
Michael Tetelbaum
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.)
Mitel Networks Corp
Original Assignee
Mitel Networks Corp
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 Mitel Networks Corp filed Critical Mitel Networks Corp
Publication of DE602005003643D1 publication Critical patent/DE602005003643D1/de
Application granted granted Critical
Publication of DE602005003643T2 publication Critical patent/DE602005003643T2/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)
  • Telephone Function (AREA)
DE602005003643T 2005-04-01 2005-04-01 Verfahren zur Beschleunigung des Trainings eines akustischen Echokompensators in einem Vollduplexaudiokonferenzsystem durch akustische Strahlbildung Active DE602005003643T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05252066A EP1708472B1 (de) 2005-04-01 2005-04-01 Verfahren zur Beschleunigung des Trainings eines akustischen Echokompensators in einem Vollduplexaudiokonferenzsystem durch akustische Strahlbildung

Publications (2)

Publication Number Publication Date
DE602005003643D1 true DE602005003643D1 (de) 2008-01-17
DE602005003643T2 DE602005003643T2 (de) 2008-11-13

Family

ID=34940688

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602005003643T Active DE602005003643T2 (de) 2005-04-01 2005-04-01 Verfahren zur Beschleunigung des Trainings eines akustischen Echokompensators in einem Vollduplexaudiokonferenzsystem durch akustische Strahlbildung

Country Status (4)

Country Link
US (1) US8213596B2 (de)
EP (1) EP1708472B1 (de)
CA (1) CA2539143C (de)
DE (1) DE602005003643T2 (de)

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EP1936939B1 (de) * 2006-12-18 2011-08-24 Harman Becker Automotive Systems GmbH Echokompensation mit geringer Komplexität
ATE524015T1 (de) * 2007-05-22 2011-09-15 Harman Becker Automotive Sys Verfahren und vorrichtung zur verarbeitung mindestens zweier mikrofonsignale zur sendung eines ausgangssignals mit reduzierter interferenz
US8050398B1 (en) * 2007-10-31 2011-11-01 Clearone Communications, Inc. Adaptive conferencing pod sidetone compensator connecting to a telephonic device having intermittent sidetone
US8744069B2 (en) * 2007-12-10 2014-06-03 Microsoft Corporation Removing near-end frequencies from far-end sound
US8433061B2 (en) * 2007-12-10 2013-04-30 Microsoft Corporation Reducing echo
US8219387B2 (en) * 2007-12-10 2012-07-10 Microsoft Corporation Identifying far-end sound
EP2222091B1 (de) 2009-02-23 2013-04-24 Nuance Communications, Inc. Verfahren zum Bestimmen eines Satzes von Filterkoeffizienten für ein Mittel zur Kompensierung von akustischem Echo
US9226088B2 (en) 2011-06-11 2015-12-29 Clearone Communications, Inc. Methods and apparatuses for multiple configurations of beamforming microphone arrays
US9595997B1 (en) * 2013-01-02 2017-03-14 Amazon Technologies, Inc. Adaption-based reduction of echo and noise
US9689960B1 (en) 2013-04-04 2017-06-27 Amazon Technologies, Inc. Beam rejection in multi-beam microphone systems
GB201309779D0 (en) * 2013-05-31 2013-07-17 Microsoft Corp Echo removal
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CN104519212B (zh) * 2013-09-27 2017-06-20 华为技术有限公司 一种消除回声的方法及装置
US9191493B2 (en) * 2013-12-09 2015-11-17 Captioncall, Llc Methods and devices for updating an adaptive filter for echo cancellation
US9565493B2 (en) 2015-04-30 2017-02-07 Shure Acquisition Holdings, Inc. Array microphone system and method of assembling the same
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US9479627B1 (en) * 2015-12-29 2016-10-25 Gn Audio A/S Desktop speakerphone
US9659576B1 (en) * 2016-06-13 2017-05-23 Biamp Systems Corporation Beam forming and acoustic echo cancellation with mutual adaptation control
US10367948B2 (en) 2017-01-13 2019-07-30 Shure Acquisition Holdings, Inc. Post-mixing acoustic echo cancellation systems and methods
US10200540B1 (en) * 2017-08-03 2019-02-05 Bose Corporation Efficient reutilization of acoustic echo canceler channels
US10090000B1 (en) * 2017-11-01 2018-10-02 GM Global Technology Operations LLC Efficient echo cancellation using transfer function estimation
US10951859B2 (en) 2018-05-30 2021-03-16 Microsoft Technology Licensing, Llc Videoconferencing device and method
US11523212B2 (en) 2018-06-01 2022-12-06 Shure Acquisition Holdings, Inc. Pattern-forming microphone array
US11297423B2 (en) 2018-06-15 2022-04-05 Shure Acquisition Holdings, Inc. Endfire linear array microphone
CN112889296A (zh) 2018-09-20 2021-06-01 舒尔获得控股公司 用于阵列麦克风的可调整的波瓣形状
US10854216B2 (en) * 2019-02-15 2020-12-01 Crestron Electronics, Inc. Adaptive beamforming microphone metadata transmission to coordinate acoustic echo cancellation in an audio conferencing system
JP2022526761A (ja) 2019-03-21 2022-05-26 シュアー アクイジッション ホールディングス インコーポレイテッド 阻止機能を伴うビーム形成マイクロフォンローブの自動集束、領域内自動集束、および自動配置
US11558693B2 (en) 2019-03-21 2023-01-17 Shure Acquisition Holdings, Inc. Auto focus, auto focus within regions, and auto placement of beamformed microphone lobes with inhibition and voice activity detection functionality
CN113841419A (zh) 2019-03-21 2021-12-24 舒尔获得控股公司 天花板阵列麦克风的外壳及相关联设计特征
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EP3793179A1 (de) * 2019-09-10 2021-03-17 Peiker Acustic GmbH Freisprechkommunikationsvorrichtung
US12028678B2 (en) 2019-11-01 2024-07-02 Shure Acquisition Holdings, Inc. Proximity microphone
US11552611B2 (en) 2020-02-07 2023-01-10 Shure Acquisition Holdings, Inc. System and method for automatic adjustment of reference gain
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GB2395878A (en) * 2002-11-29 2004-06-02 Mitel Knowledge Corp Method of capturing constant echo path information using default coefficients

Also Published As

Publication number Publication date
US8213596B2 (en) 2012-07-03
EP1708472B1 (de) 2007-12-05
DE602005003643T2 (de) 2008-11-13
CA2539143A1 (en) 2006-10-01
EP1708472A1 (de) 2006-10-04
US20060233353A1 (en) 2006-10-19
CA2539143C (en) 2010-10-12

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