ATE313211T1 - System und verfahren zur erkennung eines nahen sprechers durch spektrumanalyse - Google Patents

System und verfahren zur erkennung eines nahen sprechers durch spektrumanalyse

Info

Publication number
ATE313211T1
ATE313211T1 AT00936119T AT00936119T ATE313211T1 AT E313211 T1 ATE313211 T1 AT E313211T1 AT 00936119 T AT00936119 T AT 00936119T AT 00936119 T AT00936119 T AT 00936119T AT E313211 T1 ATE313211 T1 AT E313211T1
Authority
AT
Austria
Prior art keywords
echo
talker
energy
outgoing signal
cancelled
Prior art date
Application number
AT00936119T
Other languages
English (en)
Inventor
Hugh J Mclaughlin
Linda J King
Tamara L Logan
Original Assignee
Cisco Tech Ind
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 Cisco Tech Ind filed Critical Cisco Tech Ind
Application granted granted Critical
Publication of ATE313211T1 publication Critical patent/ATE313211T1/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)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Radar Systems Or Details Thereof (AREA)
AT00936119T 1999-05-20 2000-05-18 System und verfahren zur erkennung eines nahen sprechers durch spektrumanalyse ATE313211T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/315,774 US6269161B1 (en) 1999-05-20 1999-05-20 System and method for near-end talker detection by spectrum analysis
PCT/US2000/013884 WO2000072556A1 (en) 1999-05-20 2000-05-18 System and method for near-end talker detection by spectrum analysis

Publications (1)

Publication Number Publication Date
ATE313211T1 true ATE313211T1 (de) 2005-12-15

Family

ID=23226000

Family Applications (1)

Application Number Title Priority Date Filing Date
AT00936119T ATE313211T1 (de) 1999-05-20 2000-05-18 System und verfahren zur erkennung eines nahen sprechers durch spektrumanalyse

Country Status (7)

Country Link
US (1) US6269161B1 (de)
EP (1) EP1183848B1 (de)
JP (1) JP5122042B2 (de)
AT (1) ATE313211T1 (de)
AU (1) AU5148000A (de)
DE (1) DE60024815T2 (de)
WO (1) WO2000072556A1 (de)

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US7164659B2 (en) * 1999-12-09 2007-01-16 Broadcom Corporation Adaptive gain control based on echo canceller performance information
US6650701B1 (en) * 2000-01-14 2003-11-18 Vtel Corporation Apparatus and method for controlling an acoustic echo canceler
US6744884B1 (en) * 2000-09-29 2004-06-01 Skyworks Solutions, Inc. Speaker-phone system change and double-talk detection
US6799062B1 (en) * 2000-10-19 2004-09-28 Motorola Inc. Full-duplex hands-free transparency circuit and method therefor
US20020191779A1 (en) * 2001-03-23 2002-12-19 Tien Pham System for convolutional echo cancellation by iterative autocorrelation
US7221659B1 (en) 2001-12-31 2007-05-22 Cisco Technology, Inc. Method and system for managing erroneous attenuation of signal
DE10342307B4 (de) * 2003-09-12 2005-08-04 Siemens Ag Verfahren zur Entstörung übermittelter Audiosignale zwischen Telekommunikationsendgeräten
US7599483B2 (en) * 2003-12-12 2009-10-06 Temic Automotive Of North America, Inc. Echo canceler circuit and method
US20070165871A1 (en) * 2004-01-07 2007-07-19 Koninklijke Philips Electronic, N.V. Audio system having reverberation reducing filter
US7113580B1 (en) * 2004-02-17 2006-09-26 Excel Switching Corporation Method and apparatus for performing conferencing services and echo suppression
US7450528B1 (en) * 2004-02-17 2008-11-11 Dialogic Corporation Method and apparatus for performing echo suppression
US7654230B2 (en) * 2004-06-07 2010-02-02 Kroll Family Trust Domestic animal telephone
US7983720B2 (en) * 2004-12-22 2011-07-19 Broadcom Corporation Wireless telephone with adaptive microphone array
US8509703B2 (en) * 2004-12-22 2013-08-13 Broadcom Corporation Wireless telephone with multiple microphones and multiple description transmission
US20070116300A1 (en) * 2004-12-22 2007-05-24 Broadcom Corporation Channel decoding for wireless telephones with multiple microphones and multiple description transmission
US20060133621A1 (en) * 2004-12-22 2006-06-22 Broadcom Corporation Wireless telephone having multiple microphones
US20060147063A1 (en) * 2004-12-22 2006-07-06 Broadcom Corporation Echo cancellation in telephones with multiple microphones
WO2006077005A2 (fr) * 2005-01-19 2006-07-27 France Telecom Dispositif d'annulation d'echo acoustique, procede et programme d'ordinateur correspondants
WO2007003579A1 (fr) * 2005-07-01 2007-01-11 France Telecom Dispositif d'annulation d'un écho électrique ou acoustique, procédé et programme d'ordinateur correspondants
DE602006012528D1 (de) 2005-10-21 2010-04-08 Koninkl Philips Electronics Nv Akustischer echolöscher
WO2008058492A1 (de) * 2006-11-15 2008-05-22 Siemens Aktiengesellschaft Verfahren und anordnung zum adaptiven filtern von signalen
JP4456622B2 (ja) * 2007-07-25 2010-04-28 沖電気工業株式会社 ダブルトーク検出器、ダブルトーク検出方法及びエコーキャンセラ
US8428661B2 (en) * 2007-10-30 2013-04-23 Broadcom Corporation Speech intelligibility in telephones with multiple microphones
JP5061976B2 (ja) * 2008-03-12 2012-10-31 沖電気工業株式会社 エコーキャンセラ、エコーキャンセル方法及びプログラム
US9225842B2 (en) * 2008-12-22 2015-12-29 Koninklijke Philips N.V. Determining an acoustic coupling between a far-end talker signal and a combined signal
US9343073B1 (en) * 2010-04-20 2016-05-17 Knowles Electronics, Llc Robust noise suppression system in adverse echo conditions
US9307321B1 (en) 2011-06-09 2016-04-05 Audience, Inc. Speaker distortion reduction
JP5923994B2 (ja) * 2012-01-23 2016-05-25 富士通株式会社 音声処理装置及び音声処理方法
GB2525051B (en) * 2014-09-30 2016-04-13 Imagination Tech Ltd Detection of acoustic echo cancellation
JP6387786B2 (ja) * 2014-10-22 2018-09-12 株式会社デンソー 超音波式物体検知装置
CN114566176B (zh) * 2022-02-23 2024-07-09 宁波蛙声科技有限公司 基于深度神经网络的残余回声消除方法及系统

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WO1988003341A1 (en) 1986-10-30 1988-05-05 Fujitsu Limited Echo canceller with short processing delay and decreased multiplication number
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US5365583A (en) * 1992-07-02 1994-11-15 Polycom, Inc. Method for fail-safe operation in a speaker phone system
US5307405A (en) * 1992-09-25 1994-04-26 Qualcomm Incorporated Network echo canceller
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US5327496A (en) * 1993-06-30 1994-07-05 Iowa State University Research Foundation, Inc. Communication device, apparatus, and method utilizing pseudonoise signal for acoustical echo cancellation
ZA95599B (en) 1994-02-28 1996-02-06 Qualcomm Inc Doubletalk detection by means of spectral content
US5668871A (en) * 1994-04-29 1997-09-16 Motorola, Inc. Audio signal processor and method therefor for substantially reducing audio feedback in a cummunication unit
JPH0832494A (ja) * 1994-07-13 1996-02-02 Mitsubishi Electric Corp ハンズフリー通話装置
US5526426A (en) 1994-11-08 1996-06-11 Signalworks System and method for an efficiently constrained frequency-domain adaptive filter
FR2729804B1 (fr) * 1995-01-24 1997-04-04 Matra Communication Annuleur d'echo acoustique a filtre adaptatif et passage dans le domaine frequentiel
US5937060A (en) * 1996-02-09 1999-08-10 Texas Instruments Incorporated Residual echo suppression
JP3386327B2 (ja) * 1996-04-25 2003-03-17 三菱電機株式会社 エコーキャンセラ
FR2758677B1 (fr) * 1997-01-21 1999-04-02 Matra Communication Procede d'annulation d'echo et annuleur d'echo mettant en oeuvre un tel procede
DE19729521B4 (de) * 1997-07-10 2004-04-01 Deutsche Telekom Ag Verfahren und Vorrichtung zur Störgeräusch- und Echounterdrückung

Also Published As

Publication number Publication date
US6269161B1 (en) 2001-07-31
DE60024815D1 (de) 2006-01-19
EP1183848A1 (de) 2002-03-06
AU5148000A (en) 2000-12-12
EP1183848B1 (de) 2005-12-14
WO2000072556A9 (en) 2001-03-08
EP1183848A4 (de) 2003-02-12
JP2003517751A (ja) 2003-05-27
JP5122042B2 (ja) 2013-01-16
DE60024815T2 (de) 2006-08-10
WO2000072556A1 (en) 2000-11-30

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