ATE459195T1 - Gerät und verfahren für echounterdrückung, insbesondere für telefone - Google Patents

Gerät und verfahren für echounterdrückung, insbesondere für telefone

Info

Publication number
ATE459195T1
ATE459195T1 AT03778699T AT03778699T ATE459195T1 AT E459195 T1 ATE459195 T1 AT E459195T1 AT 03778699 T AT03778699 T AT 03778699T AT 03778699 T AT03778699 T AT 03778699T AT E459195 T1 ATE459195 T1 AT E459195T1
Authority
AT
Austria
Prior art keywords
audio signal
echo
speech
signal
echo suppression
Prior art date
Application number
AT03778699T
Other languages
English (en)
Inventor
Alexander Stenger
Original Assignee
Nxp Bv
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 Nxp Bv filed Critical Nxp Bv
Application granted granted Critical
Publication of ATE459195T1 publication Critical patent/ATE459195T1/de

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)
  • Interface Circuits In Exchanges (AREA)
AT03778699T 2003-01-08 2003-12-22 Gerät und verfahren für echounterdrückung, insbesondere für telefone ATE459195T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP03100016 2003-01-08
PCT/IB2003/006252 WO2004064365A1 (en) 2003-01-08 2003-12-22 Device and method for suppressing echo, in particular in telephones

Publications (1)

Publication Number Publication Date
ATE459195T1 true ATE459195T1 (de) 2010-03-15

Family

ID=32695621

Family Applications (1)

Application Number Title Priority Date Filing Date
AT03778699T ATE459195T1 (de) 2003-01-08 2003-12-22 Gerät und verfahren für echounterdrückung, insbesondere für telefone

Country Status (8)

Country Link
US (1) US7319748B2 (de)
EP (1) EP1584178B1 (de)
JP (1) JP4376793B2 (de)
CN (1) CN100591084C (de)
AT (1) ATE459195T1 (de)
AU (1) AU2003285714A1 (de)
DE (1) DE60331476D1 (de)
WO (1) WO2004064365A1 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7907977B2 (en) * 2007-10-02 2011-03-15 Agere Systems Inc. Echo canceller with correlation using pre-whitened data values received by downlink codec
JP5032669B2 (ja) * 2007-11-29 2012-09-26 テレフオンアクチーボラゲット エル エム エリクソン（パブル） 音声信号のエコーキャンセルのための方法及び装置
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
FR2943875A1 (fr) * 2009-03-31 2010-10-01 France Telecom Procede et dispositif de classification du bruit de fond contenu dans un signal audio.
ES2671942T3 (es) * 2012-02-14 2018-06-11 Koninklijke Philips N.V. Procesamiento de la señal de audio en un sistema de comunicación
GB2510331A (en) 2012-12-21 2014-08-06 Microsoft Corp Echo suppression in an audio signal
GB2509493A (en) 2012-12-21 2014-07-09 Microsoft Corp Suppressing Echo in a received audio signal by estimating the echo power in the received audio signal based on an FIR filter estimate
GB2512022A (en) * 2012-12-21 2014-09-24 Microsoft Corp Echo suppression
US9973633B2 (en) 2014-11-17 2018-05-15 At&T Intellectual Property I, L.P. Pre-distortion system for cancellation of nonlinear distortion in mobile devices
CN106571148B (zh) * 2016-11-14 2020-04-28 阔地教育科技有限公司 一种音频信号自动增益控制方法及装置
CN110956969B (zh) * 2019-11-28 2022-06-10 北京达佳互联信息技术有限公司 直播音频处理方法、装置、电子设备和存储介质
GB2614064A (en) 2021-12-21 2023-06-28 Nokia Technologies Oy Apparatus, methods and computer programs for reducing echo

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI110826B (fi) * 1995-06-08 2003-03-31 Nokia Corp Akustisen kaiun poisto digitaalisessa matkaviestinjärjestelmässä
SE505692C2 (sv) * 1995-12-18 1997-09-29 Ericsson Telefon Ab L M Förfarande och anordning för ekosläckning genom skattning av effekt hos residualsignal
US6148078A (en) * 1998-01-09 2000-11-14 Ericsson Inc. Methods and apparatus for controlling echo suppression in communications systems
US6961422B2 (en) * 2001-12-28 2005-11-01 Avaya Technology Corp. Gain control method for acoustic echo cancellation and suppression

Also Published As

Publication number Publication date
WO2004064365A1 (en) 2004-07-29
DE60331476D1 (de) 2010-04-08
EP1584178A1 (de) 2005-10-12
CN1736091A (zh) 2006-02-15
JP2006513621A (ja) 2006-04-20
US20060153359A1 (en) 2006-07-13
AU2003285714A1 (en) 2004-08-10
US7319748B2 (en) 2008-01-15
EP1584178B1 (de) 2010-02-24
CN100591084C (zh) 2010-02-17
JP4376793B2 (ja) 2009-12-02

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Legal Events

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