CA2088558A1 - Eliminateur d'echo multicanal muni de filtres adaptatifs a vecteurs de coefficients selectionnables - Google Patents

Eliminateur d'echo multicanal muni de filtres adaptatifs a vecteurs de coefficients selectionnables

Info

Publication number
CA2088558A1
CA2088558A1 CA2088558A CA2088558A CA2088558A1 CA 2088558 A1 CA2088558 A1 CA 2088558A1 CA 2088558 A CA2088558 A CA 2088558A CA 2088558 A CA2088558 A CA 2088558A CA 2088558 A1 CA2088558 A1 CA 2088558A1
Authority
CA
Canada
Prior art keywords
signal
adaptive filters
echo
cancelling
coefficient vectors
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.)
Granted
Application number
CA2088558A
Other languages
English (en)
Other versions
CA2088558C (fr
Inventor
Akihiro Hirano
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Publication of CA2088558A1 publication Critical patent/CA2088558A1/fr
Application granted granted Critical
Publication of CA2088558C publication Critical patent/CA2088558C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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)
  • Filters That Use Time-Delay Elements (AREA)
CA002088558A 1992-01-31 1993-02-01 Eliminateur d'echo multicanal muni de filtres adaptatifs a vecteurs de coefficients selectionnables Expired - Fee Related CA2088558C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP4-46185 1992-01-31
JP4046185A JP2792311B2 (ja) 1992-01-31 1992-01-31 多チャンネルエコー除去方法および装置

Publications (2)

Publication Number Publication Date
CA2088558A1 true CA2088558A1 (fr) 1993-08-01
CA2088558C CA2088558C (fr) 1997-12-23

Family

ID=12739988

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002088558A Expired - Fee Related CA2088558C (fr) 1992-01-31 1993-02-01 Eliminateur d'echo multicanal muni de filtres adaptatifs a vecteurs de coefficients selectionnables

Country Status (5)

Country Link
US (1) US5371789A (fr)
EP (1) EP0561133B1 (fr)
JP (1) JP2792311B2 (fr)
CA (1) CA2088558C (fr)
DE (1) DE69321635T2 (fr)

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GB2493801B (en) 2011-08-18 2014-05-14 Ibm Improved audio quality in teleconferencing
US9613634B2 (en) * 2014-06-19 2017-04-04 Yang Gao Control of acoustic echo canceller adaptive filter for speech enhancement
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US9653060B1 (en) * 2016-02-09 2017-05-16 Amazon Technologies, Inc. Hybrid reference signal for acoustic echo cancellation
US9659555B1 (en) * 2016-02-09 2017-05-23 Amazon Technologies, Inc. Multichannel acoustic echo cancellation
US10367948B2 (en) 2017-01-13 2019-07-30 Shure Acquisition Holdings, Inc. Post-mixing acoustic echo cancellation systems and methods
US10200540B1 (en) * 2017-08-03 2019-02-05 Bose Corporation Efficient reutilization of acoustic echo canceler channels
US10594869B2 (en) * 2017-08-03 2020-03-17 Bose Corporation Mitigating impact of double talk for residual echo suppressors
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Also Published As

Publication number Publication date
US5371789A (en) 1994-12-06
EP0561133A1 (fr) 1993-09-22
EP0561133B1 (fr) 1998-10-21
JP2792311B2 (ja) 1998-09-03
DE69321635T2 (de) 1999-03-25
CA2088558C (fr) 1997-12-23
JPH05218906A (ja) 1993-08-27
DE69321635D1 (de) 1998-11-26

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