DE602005008914D1 - Verfahren und System zum Reduzieren der Trainingszeit eines akustischen Echokompensators in einem Vollduplexaudiokonferenzsystem durch akustische Strahlbildung - Google Patents

Verfahren und System zum Reduzieren der Trainingszeit eines akustischen Echokompensators in einem Vollduplexaudiokonferenzsystem durch akustische Strahlbildung

Info

Publication number
DE602005008914D1
DE602005008914D1 DE602005008914T DE602005008914T DE602005008914D1 DE 602005008914 D1 DE602005008914 D1 DE 602005008914D1 DE 602005008914 T DE602005008914 T DE 602005008914T DE 602005008914 T DE602005008914 T DE 602005008914T DE 602005008914 D1 DE602005008914 D1 DE 602005008914D1
Authority
DE
Germany
Prior art keywords
acoustic
reducing
full duplex
echo canceller
training time
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
DE602005008914T
Other languages
English (en)
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 DE602005008914D1 publication Critical patent/DE602005008914D1/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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R27/00—Public address systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/005—Circuits for transducers, loudspeakers or microphones for combining the signals of two or more microphones

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Telephone Function (AREA)
DE602005008914T 2005-05-09 2005-05-09 Verfahren und System zum Reduzieren der Trainingszeit eines akustischen Echokompensators in einem Vollduplexaudiokonferenzsystem durch akustische Strahlbildung Active DE602005008914D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05103821A EP1722545B1 (de) 2005-05-09 2005-05-09 Verfahren und System zum Reduzieren der Trainingszeit eines akustischen Echokompensators in einem Vollduplexaudiokonferenzsystem durch akustische Strahlbildung

Publications (1)

Publication Number Publication Date
DE602005008914D1 true DE602005008914D1 (de) 2008-09-25

Family

ID=34939741

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602005008914T Active DE602005008914D1 (de) 2005-05-09 2005-05-09 Verfahren und System zum Reduzieren der Trainingszeit eines akustischen Echokompensators in einem Vollduplexaudiokonferenzsystem durch akustische Strahlbildung

Country Status (4)

Country Link
US (1) US7831036B2 (de)
EP (1) EP1722545B1 (de)
CA (1) CA2539798C (de)
DE (1) DE602005008914D1 (de)

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US8923508B2 (en) * 2012-06-07 2014-12-30 Lsi Corporation Half-duplex speakerphone echo canceler
US9813808B1 (en) 2013-03-14 2017-11-07 Amazon Technologies, Inc. Adaptive directional audio enhancement and selection
US9936290B2 (en) * 2013-05-03 2018-04-03 Qualcomm Incorporated Multi-channel echo cancellation and noise suppression
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US9653060B1 (en) * 2016-02-09 2017-05-16 Amazon Technologies, Inc. Hybrid reference signal for acoustic echo cancellation
WO2018006856A1 (zh) * 2016-07-07 2018-01-11 腾讯科技（深圳）有限公司 一种回声消除的方法及终端、计算机存储介质
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
US11523212B2 (en) 2018-06-01 2022-12-06 Shure Acquisition Holdings, Inc. Pattern-forming microphone array
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US10938994B2 (en) * 2018-06-25 2021-03-02 Cypress Semiconductor Corporation Beamformer and acoustic echo canceller (AEC) system
US10559317B2 (en) 2018-06-29 2020-02-11 Cirrus Logic International Semiconductor Ltd. Microphone array processing for adaptive echo control
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
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
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
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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Also Published As

Publication number Publication date
CA2539798A1 (en) 2006-11-09
US20060250998A1 (en) 2006-11-09
EP1722545B1 (de) 2008-08-13
US7831036B2 (en) 2010-11-09
CA2539798C (en) 2009-09-29
EP1722545A1 (de) 2006-11-15

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