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DE69835614D1 - Verfahren und gerät zur stereo-akustischen echounterdrückung - Google Patents

Verfahren und gerät zur stereo-akustischen echounterdrückung

Info

Publication number
DE69835614D1
DE69835614D1 DE69835614T DE69835614T DE69835614D1 DE 69835614 D1 DE69835614 D1 DE 69835614D1 DE 69835614 T DE69835614 T DE 69835614T DE 69835614 T DE69835614 T DE 69835614T DE 69835614 D1 DE69835614 D1 DE 69835614D1
Authority
DE
Germany
Prior art keywords
echounterpression
stereo
acoustic
acoustic echounterpression
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.)
Expired - Lifetime
Application number
DE69835614T
Other languages
English (en)
Inventor
Ove Till
Tomas Gaensler
Peter Eneroth
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.)
Telia Co AB
Original Assignee
Telia AB
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 Telia AB filed Critical Telia AB
Application granted granted Critical
Publication of DE69835614D1 publication Critical patent/DE69835614D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
    • H04B1/665—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission using psychoacoustic properties of the ear, e.g. masking effect
    • 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)
  • Computer Networks & Wireless Communication (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
DE69835614T 1997-10-29 1998-10-16 Verfahren und gerät zur stereo-akustischen echounterdrückung Expired - Lifetime DE69835614D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9703972A SE512903C2 (sv) 1997-10-29 1997-10-29 Metod och anordning vid stereoakustisk ekosläckning
PCT/SE1998/001858 WO1999022460A2 (en) 1997-10-29 1998-10-16 Method and device at stereo acoustic echo cancellation

Publications (1)

Publication Number Publication Date
DE69835614D1 true DE69835614D1 (de) 2006-09-28

Family

ID=20408805

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69835614T Expired - Lifetime DE69835614D1 (de) 1997-10-29 1998-10-16 Verfahren und gerät zur stereo-akustischen echounterdrückung

Country Status (6)

Country Link
EP (1) EP1031191B1 (de)
DE (1) DE69835614D1 (de)
EE (1) EE03716B1 (de)
NO (1) NO20002111L (de)
SE (1) SE512903C2 (de)
WO (1) WO1999022460A2 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2348350B (en) 1999-03-26 2004-02-18 Mitel Corp Echo cancelling/suppression for handsets
NO319467B1 (no) 2003-12-29 2005-08-15 Tandberg Telecom As System og fremgangsmate for forbedret subjektiv stereolyd
US7903137B2 (en) 2004-10-15 2011-03-08 Lifesize Communications, Inc. Videoconferencing echo cancellers
US7720236B2 (en) 2004-10-15 2010-05-18 Lifesize Communications, Inc. Updating modeling information based on offline calibration experiments
US7760887B2 (en) 2004-10-15 2010-07-20 Lifesize Communications, Inc. Updating modeling information based on online data gathering
US7720232B2 (en) 2004-10-15 2010-05-18 Lifesize Communications, Inc. Speakerphone
US7593539B2 (en) 2005-04-29 2009-09-22 Lifesize Communications, Inc. Microphone and speaker arrangement in speakerphone
US8259928B2 (en) 2007-04-23 2012-09-04 Microsoft Corporation Method and apparatus for reducing timestamp noise in audio echo cancellation
US10652663B1 (en) 2019-04-30 2020-05-12 Cisco Technology, Inc. Endpoint device using the precedence effect to improve echo cancellation performance
WO2023114973A1 (en) 2021-12-17 2023-06-22 Shure Acquisition Holdings, Inc. Adaptive acoustic echo cancellation for a stereo audio signal

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2508574B2 (ja) * 1992-11-10 1996-06-19 日本電気株式会社 多チャンネルエコ―除去装置
US5555310A (en) * 1993-02-12 1996-09-10 Kabushiki Kaisha Toshiba Stereo voice transmission apparatus, stereo signal coding/decoding apparatus, echo canceler, and voice input/output apparatus to which this echo canceler is applied
JPH084243B2 (ja) * 1993-05-31 1996-01-17 日本電気株式会社 多チャンネルエコー除去方法および装置
JP3397269B2 (ja) * 1994-10-26 2003-04-14 日本電信電話株式会社 多チャネル反響消去方法
FR2762467B1 (fr) * 1997-04-16 1999-07-02 France Telecom Procede d'annulation d'echo acoustique multi-voies et annuleur d'echo acoustique multi-voies

Also Published As

Publication number Publication date
EP1031191B1 (de) 2006-08-16
EP1031191A2 (de) 2000-08-30
EE03716B1 (et) 2002-04-15
SE9703972L (sv) 1999-04-30
NO20002111L (no) 2000-06-28
EE200000182A (et) 2001-06-15
NO20002111D0 (no) 2000-04-26
SE9703972D0 (sv) 1997-10-29
SE512903C2 (sv) 2000-06-05
WO1999022460A2 (en) 1999-05-06
WO1999022460A3 (en) 1999-07-15

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Legal Events

Date Code Title Description
8332 No legal effect for de