ATE503343T1 - Verfahren und vorrichtung zur echounterdrückung - Google Patents

Verfahren und vorrichtung zur echounterdrückung

Info

Publication number
ATE503343T1
ATE503343T1 AT04739745T AT04739745T ATE503343T1 AT E503343 T1 ATE503343 T1 AT E503343T1 AT 04739745 T AT04739745 T AT 04739745T AT 04739745 T AT04739745 T AT 04739745T AT E503343 T1 ATE503343 T1 AT E503343T1
Authority
AT
Austria
Prior art keywords
signal
communication device
microphone
speaker
diffused
Prior art date
Application number
AT04739745T
Other languages
English (en)
Inventor
Jean-Philippe Thomas
Olivier Durand
Original Assignee
France Telecom
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 France Telecom filed Critical France Telecom
Application granted granted Critical
Publication of ATE503343T1 publication Critical patent/ATE503343T1/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
    • H04M3/567—Multimedia conference systems
    • 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
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/002—Applications of echo suppressors or cancellers in telephonic connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
    • H04M3/568—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities audio processing specific to telephonic conferencing, e.g. spatial distribution, mixing of participants

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Telephonic Communication Services (AREA)
  • Telephone Function (AREA)
  • Paper (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
AT04739745T 2003-06-13 2004-06-08 Verfahren und vorrichtung zur echounterdrückung ATE503343T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0307167A FR2856183A1 (fr) 2003-06-13 2003-06-13 Procede et dispositif de traitement d'echo
PCT/EP2004/006239 WO2004112370A1 (fr) 2003-06-13 2004-06-08 Procede et dispositif de traitement d’echo

Publications (1)

Publication Number Publication Date
ATE503343T1 true ATE503343T1 (de) 2011-04-15

Family

ID=33484433

Family Applications (1)

Application Number Title Priority Date Filing Date
AT04739745T ATE503343T1 (de) 2003-06-13 2004-06-08 Verfahren und vorrichtung zur echounterdrückung

Country Status (6)

Country Link
US (1) US7672446B2 (de)
EP (1) EP1634435B1 (de)
AT (1) ATE503343T1 (de)
DE (1) DE602004031940D1 (de)
FR (1) FR2856183A1 (de)
WO (1) WO2004112370A1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8630426B2 (en) * 2009-11-06 2014-01-14 Motorola Solutions, Inc. Howling suppression using echo cancellation
EP2490460B1 (de) * 2011-02-18 2013-11-20 Gigaset Communications GmbH Akustische Feedbackunterdrückung für Kommunikationsendgeräte
US9654609B2 (en) 2011-12-16 2017-05-16 Qualcomm Incorporated Optimizing audio processing functions by dynamically compensating for variable distances between speaker(s) and microphone(s) in an accessory device
US9232071B2 (en) 2011-12-16 2016-01-05 Qualcomm Incorporated Optimizing audio processing functions by dynamically compensating for variable distances between speaker(s) and microphone(s) in a mobile device
US9667284B1 (en) * 2016-03-08 2017-05-30 Motorola Solutions, Inc. Method, device, and system for identifying a howling source and suppressing howling
US10284728B1 (en) 2018-02-21 2019-05-07 Motorola Solutions, Inc. Adaptive proximity thresholds for dynamic howling suppression
US10154149B1 (en) * 2018-03-15 2018-12-11 Motorola Solutions, Inc. Audio framework extension for acoustic feedback suppression

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6496581B1 (en) * 1997-09-11 2002-12-17 Digisonix, Inc. Coupled acoustic echo cancellation system
US20020071573A1 (en) * 1997-09-11 2002-06-13 Finn Brian M. DVE system with customized equalization
GB2350969B (en) * 1999-06-07 2003-11-05 Ericsson Telefon Ab L M Loudspeaker volume range control
KR20040019362A (ko) * 2001-07-20 2004-03-05 코닌클리케 필립스 일렉트로닉스 엔.브이. 후처리기로서 멀티 마이크로폰 에코 억제기를 가지는 음향보강 시스템
DE10153188C2 (de) * 2001-10-27 2003-08-21 Grundig Ag I Ins Vorrichtung und Verfahren zur mehrkanaligen akustischen Echokompensation mit variabler Kanalzahl
US6961422B2 (en) * 2001-12-28 2005-11-01 Avaya Technology Corp. Gain control method for acoustic echo cancellation and suppression
US6937723B2 (en) * 2002-10-25 2005-08-30 Avaya Technology Corp. Echo detection and monitoring

Also Published As

Publication number Publication date
DE602004031940D1 (de) 2011-05-05
US20060177045A1 (en) 2006-08-10
WO2004112370A1 (fr) 2004-12-23
EP1634435A1 (de) 2006-03-15
EP1634435B1 (de) 2011-03-23
US7672446B2 (en) 2010-03-02
FR2856183A1 (fr) 2004-12-17

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Legal Events

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