DE602004023968D1 - System und verfahren für erweitertes stereo-audio - Google Patents

System und verfahren für erweitertes stereo-audio

Info

Publication number
DE602004023968D1
DE602004023968D1 DE602004023968T DE602004023968T DE602004023968D1 DE 602004023968 D1 DE602004023968 D1 DE 602004023968D1 DE 602004023968 T DE602004023968 T DE 602004023968T DE 602004023968 T DE602004023968 T DE 602004023968T DE 602004023968 D1 DE602004023968 D1 DE 602004023968D1
Authority
DE
Germany
Prior art keywords
stereo
far
canceller
end audio
echo
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
DE602004023968T
Other languages
English (en)
Inventor
Trygve Frederik Marton
Ingvar Flaten Aarnes
Bjoern Winsvold
Geir Ole Overby
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 DE602004023968D1 publication Critical patent/DE602004023968D1/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
    • 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
DE602004023968T 2003-12-23 2004-12-22 System und verfahren für erweitertes stereo-audio Active DE602004023968D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20035796A NO320942B1 (no) 2003-12-23 2003-12-23 System og fremgangsmate for forbedret stereolyd
PCT/NO2004/000398 WO2005062595A1 (en) 2003-12-23 2004-12-22 System and method for enhanced stereo audio

Publications (1)

Publication Number Publication Date
DE602004023968D1 true DE602004023968D1 (de) 2009-12-17

Family

ID=34709403

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602004023968T Active DE602004023968D1 (de) 2003-12-23 2004-12-22 System und verfahren für erweitertes stereo-audio

Country Status (9)

Country Link
US (1) US7477735B2 (de)
EP (1) EP1698159B1 (de)
JP (1) JP4417390B2 (de)
CN (1) CN1898944A (de)
AT (1) ATE447824T1 (de)
DE (1) DE602004023968D1 (de)
ES (1) ES2333873T3 (de)
NO (1) NO320942B1 (de)
WO (1) WO2005062595A1 (de)

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US7352858B2 (en) * 2004-06-30 2008-04-01 Microsoft Corporation Multi-channel echo cancellation with round robin regularization
US7720232B2 (en) * 2004-10-15 2010-05-18 Lifesize Communications, Inc. Speakerphone
US7970151B2 (en) * 2004-10-15 2011-06-28 Lifesize Communications, Inc. Hybrid beamforming
US7720236B2 (en) * 2004-10-15 2010-05-18 Lifesize Communications, Inc. Updating modeling information based on offline calibration experiments
US7826624B2 (en) * 2004-10-15 2010-11-02 Lifesize Communications, Inc. Speakerphone self calibration and beam forming
US7903137B2 (en) * 2004-10-15 2011-03-08 Lifesize Communications, Inc. Videoconferencing echo cancellers
US8116500B2 (en) * 2004-10-15 2012-02-14 Lifesize Communications, Inc. Microphone orientation and size in a speakerphone
US7760887B2 (en) * 2004-10-15 2010-07-20 Lifesize Communications, Inc. Updating modeling information based on online data gathering
US20060132595A1 (en) * 2004-10-15 2006-06-22 Kenoyer Michael L Speakerphone supporting video and audio features
US8457614B2 (en) 2005-04-07 2013-06-04 Clearone Communications, Inc. Wireless multi-unit conference phone
US7991167B2 (en) * 2005-04-29 2011-08-02 Lifesize Communications, Inc. Forming beams with nulls directed at noise sources
US7970150B2 (en) * 2005-04-29 2011-06-28 Lifesize Communications, Inc. Tracking talkers using virtual broadside scan and directed beams
US7593539B2 (en) * 2005-04-29 2009-09-22 Lifesize Communications, Inc. Microphone and speaker arrangement in speakerphone
NO20053393A (no) * 2005-07-13 2006-09-11 Tandberg Telecom As Fremgangsmåte og system for ekkokansellering med liten forsinkelse.
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
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
DE112009001303B4 (de) * 2008-06-11 2016-02-18 Mitsubishi Electric Corp. Echokompensator
CN102113314B (zh) * 2008-07-29 2013-08-07 Lg电子株式会社 用于处理音频信号的方法和设备
EP2512040B1 (de) * 2011-04-14 2013-11-13 Alcatel Lucent Rechensparender Echokompensator für ein Breitband-Audiosignal
WO2012157788A1 (ja) * 2011-05-19 2012-11-22 日本電気株式会社 音声処理装置、音声処理方法および音声処理プログラムを記録した記録媒体
CN103414980B (zh) * 2013-07-30 2016-09-07 浙江中科电声研发中心 一种多输出通道音响系统的时延和频响特性的补偿方法
US9100090B2 (en) 2013-12-20 2015-08-04 Csr Technology Inc. Acoustic echo cancellation (AEC) for a close-coupled speaker and microphone system
CN104751854A (zh) * 2013-12-26 2015-07-01 联芯科技有限公司 一种宽带声学回声消除方法及系统
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
KR20170035504A (ko) * 2015-09-23 2017-03-31 삼성전자주식회사 전자 장치 및 전자 장치의 오디오 처리 방법
US11600288B2 (en) * 2017-08-28 2023-03-07 Sony Interactive Entertainment Inc. Sound signal processing device
US10951859B2 (en) 2018-05-30 2021-03-16 Microsoft Technology Licensing, Llc Videoconferencing device and method
CN108566612B (zh) * 2018-06-29 2020-09-25 海信视像科技股份有限公司 一种扬声器检测方法、终端设备及计算机存储介质
US11451905B1 (en) * 2019-10-30 2022-09-20 Social Microphone, Inc. System and method for multi-channel acoustic echo and feedback compensation

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5305307A (en) 1991-01-04 1994-04-19 Picturetel Corporation Adaptive acoustic echo canceller having means for reducing or eliminating echo in a plurality of signal bandwidths
FR2793629B1 (fr) * 1999-05-12 2001-08-03 Matra Nortel Communications Procede et dispositif d'annulation d'echo stereophonique a filtrage dans le domaine frequentiel
US6614365B2 (en) * 2000-12-14 2003-09-02 Sony Corporation Coding device and method, decoding device and method, and recording medium
JP3608525B2 (ja) * 2001-05-09 2005-01-12 ヤマハ株式会社 ２チャンネルエコーキャンセル用フィルタのインパルス応答設定方法および２チャンネルエコーキャンセラ並びに双方向２チャンネル音声伝送装置
JP3506138B2 (ja) 2001-07-11 2004-03-15 ヤマハ株式会社 複数チャンネルエコーキャンセル方法、複数チャンネル音声伝送方法、ステレオエコーキャンセラ、ステレオ音声伝送装置および伝達関数演算装置

Also Published As

Publication number Publication date
ATE447824T1 (de) 2009-11-15
ES2333873T3 (es) 2010-03-02
NO20035796L (no) 2005-06-24
EP1698159B1 (de) 2009-11-04
US7477735B2 (en) 2009-01-13
JP4417390B2 (ja) 2010-02-17
NO320942B1 (no) 2006-02-13
WO2005062595A1 (en) 2005-07-07
CN1898944A (zh) 2007-01-17
JP2007515911A (ja) 2007-06-14
EP1698159A1 (de) 2006-09-06
US20050157866A1 (en) 2005-07-21

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