JP6422884B2 - エコー抑圧 - Google Patents

エコー抑圧 Download PDF

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Publication number
JP6422884B2
JP6422884B2 JP2015549850A JP2015549850A JP6422884B2 JP 6422884 B2 JP6422884 B2 JP 6422884B2 JP 2015549850 A JP2015549850 A JP 2015549850A JP 2015549850 A JP2015549850 A JP 2015549850A JP 6422884 B2 JP6422884 B2 JP 6422884B2
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JP
Japan
Prior art keywords
echo
audio input
input signal
signal
received audio
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JP2015549850A
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English (en)
Japanese (ja)
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JP2016503262A (ja
JP2016503262A5 (enExample
Inventor
ソレンセン，カルステン，ヴァンドボルグ
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.)
Microsoft Corp
Microsoft Technology Licensing LLC
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Microsoft Corp
Microsoft Technology Licensing LLC
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Application filed by Microsoft Corp, Microsoft Technology Licensing LLC filed Critical Microsoft Corp
Publication of JP2016503262A publication Critical patent/JP2016503262A/ja
Publication of JP2016503262A5 publication Critical patent/JP2016503262A5/ja
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    • 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
    • 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
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0208—Noise filtering
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
    • H04B3/23—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other using a replica of transmitted signal in the time domain, e.g. echo cancellers
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0208—Noise filtering
    • G10L2021/02082—Noise filtering the noise being echo, reverberation of the speech

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Human Computer Interaction (AREA)
  • Quality & Reliability (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Telephone Function (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
JP2015549850A 2012-12-21 2013-12-21 エコー抑圧 Active JP6422884B2 (ja)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
GB1223246.8 2012-12-21
GB1223246.8A GB2509493A (en) 2012-12-21 2012-12-21 Suppressing Echo in a received audio signal by estimating the echo power in the received audio signal based on an FIR filter estimate
US13/889,229 2013-05-07
US13/889,229 US9036814B2 (en) 2012-12-21 2013-05-07 Echo suppression
PCT/US2013/077353 WO2014100792A1 (en) 2012-12-21 2013-12-21 Echo suppression

Publications (3)

Publication Number Publication Date
JP2016503262A JP2016503262A (ja) 2016-02-01
JP2016503262A5 JP2016503262A5 (enExample) 2017-01-12
JP6422884B2 true JP6422884B2 (ja) 2018-11-14

Family

ID=47682465

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2015549850A Active JP6422884B2 (ja) 2012-12-21 2013-12-21 エコー抑圧

Country Status (7)

Country Link
US (1) US9036814B2 (enExample)
EP (1) EP2920948B1 (enExample)
JP (1) JP6422884B2 (enExample)
KR (1) KR102170341B1 (enExample)
CN (1) CN104871520B (enExample)
GB (1) GB2509493A (enExample)
WO (1) WO2014100792A1 (enExample)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2510331A (en) 2012-12-21 2014-08-06 Microsoft Corp Echo suppression in an audio signal
GB2512022A (en) 2012-12-21 2014-09-24 Microsoft Corp Echo suppression
US10014906B2 (en) * 2015-09-25 2018-07-03 Microsemi Semiconductor (U.S.) Inc. Acoustic echo path change detection apparatus and method
KR102580418B1 (ko) * 2017-02-07 2023-09-20 삼성에스디에스 주식회사 어쿠스틱 에코 제거 장치 및 방법
US10602270B1 (en) 2018-11-30 2020-03-24 Microsoft Technology Licensing, Llc Similarity measure assisted adaptation control
CN113870889B (zh) * 2021-09-13 2025-08-26 支付宝(杭州)信息技术有限公司 一种回声消除中的时延估计方法、装置以及电子设备
US11902757B2 (en) 2022-06-14 2024-02-13 Tencent America LLC Techniques for unified acoustic echo suppression using a recurrent neural network

Family Cites Families (43)

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Publication number Priority date Publication date Assignee Title
US5473686A (en) 1994-02-01 1995-12-05 Tandy Corporation Echo cancellation apparatus
SE511073C2 (sv) * 1997-09-10 1999-08-02 Ericsson Telefon Ab L M Sätt och anordning för ekoestimering och undertryckning i telefonsystem
US6256383B1 (en) 1997-11-07 2001-07-03 Legerity, Inc. IIR filter of adaptive balance circuit for long tail echo cancellation
US6570985B1 (en) 1998-01-09 2003-05-27 Ericsson Inc. Echo canceler adaptive filter optimization
US6549587B1 (en) 1999-09-20 2003-04-15 Broadcom Corporation Voice and data exchange over a packet based network with timing recovery
US7423983B1 (en) 1999-09-20 2008-09-09 Broadcom Corporation Voice and data exchange over a packet based network
JP3566158B2 (ja) 1999-12-07 2004-09-15 三菱電機株式会社 エコーキャンセラ装置
US7672447B1 (en) 2000-06-01 2010-03-02 Telefonaktiebolaget Lm Ericsson (Publ) Frequency domain echo canceller
US7046658B1 (en) * 2000-06-23 2006-05-16 At & T Corp. Method and system for customer selected direct dialed voice-over-internet protocol (VOIP)
JP3724705B2 (ja) * 2000-08-15 2005-12-07 日本電信電話株式会社 反響抑圧方法・反響抑圧装置
US7068780B1 (en) 2000-08-30 2006-06-27 Conexant, Inc. Hybrid echo canceller
JP4568439B2 (ja) * 2001-01-22 2010-10-27 パナソニック株式会社 エコー抑圧装置
US6785382B2 (en) 2001-02-12 2004-08-31 Signalworks, Inc. System and method for controlling a filter to enhance speakerphone performance
EP1393461B1 (en) 2001-05-17 2006-07-19 STMicroelectronics Asia Pacific Pte Ltd. Echo canceller and a method of cancelling echo
US6950842B2 (en) 2002-01-23 2005-09-27 Analog Devices, Inc. Echo canceller having an adaptive filter with a dynamically adjustable step size
US6914978B2 (en) * 2002-08-16 2005-07-05 Ambit Microsystems Corp. Pulse dialing system for VoIP modem
US7082123B2 (en) * 2002-08-21 2006-07-25 Ambit Microsystems Corp. Silent redial system for VoIP modem
US7062040B2 (en) 2002-09-20 2006-06-13 Agere Systems Inc. Suppression of echo signals and the like
US7027591B2 (en) 2002-10-16 2006-04-11 Ericsson Inc. Integrated noise cancellation and residual echo suppression
US7162420B2 (en) 2002-12-10 2007-01-09 Liberato Technologies, Llc System and method for noise reduction having first and second adaptive filters
JP4376793B2 (ja) * 2003-01-08 2009-12-02 エヌエックスピー ビー ヴィ 特に電話におけるエコーを抑制するための装置および方法
US6947549B2 (en) 2003-02-19 2005-09-20 The Hong Kong Polytechnic University Echo canceller
US7099458B2 (en) 2003-12-12 2006-08-29 Motorola, Inc. Downlink activity and double talk probability detector and method for an echo canceler circuit
WO2006040734A1 (en) 2004-10-13 2006-04-20 Koninklijke Philips Electronics N.V. Echo cancellation
US7894598B2 (en) 2004-12-14 2011-02-22 Nuance Communications, Inc. System for limiting receive audio
JP2007097050A (ja) * 2005-09-30 2007-04-12 Saxa Inc エコー抑制回路および電話装置
JP2007235874A (ja) * 2006-03-03 2007-09-13 Sanyo Electric Co Ltd エコー抑制装置及びエコー抑制方法
ATE445966T1 (de) 2006-05-08 2009-10-15 Harman Becker Automotive Sys Echoverringerung für zeitvariante systeme
EP1879293B1 (en) 2006-07-10 2019-02-20 Harman Becker Automotive Systems GmbH Partitioned fast convolution in the time and frequency domain
US7983373B2 (en) 2007-02-07 2011-07-19 Vintomie Networks B.V., Llc Clock distribution for 10GBase-T analog front end
JP4978352B2 (ja) 2007-07-11 2012-07-18 ヤマハ株式会社 エコーキャンセラ
US8374851B2 (en) 2007-07-30 2013-02-12 Texas Instruments Incorporated Voice activity detector and method
EP2048659B1 (en) 2007-10-08 2011-08-17 Harman Becker Automotive Systems GmbH Gain and spectral shape adjustment in audio signal processing
US8275139B2 (en) 2008-03-26 2012-09-25 Ittiam Systems (P) Ltd. Linear full duplex system and method for acoustic echo cancellation
JP5125690B2 (ja) 2008-03-31 2013-01-23 ヤマハ株式会社 音響エコー除去装置
US8634569B2 (en) 2010-01-08 2014-01-21 Conexant Systems, Inc. Systems and methods for echo cancellation and echo suppression
NO332437B1 (no) * 2010-01-18 2012-09-17 Cisco Systems Int Sarl Apparat og fremgangsmate for a supprimere et akustisk ekko
US9185233B2 (en) 2010-05-25 2015-11-10 Intel Deutschland Gmbh Audio communication device and method using fixed echo cancellation filter coefficients
CN103339671B (zh) 2011-02-03 2016-05-04 瑞典爱立信有限公司 谐波扬声器非线性的估计和抑制
US8804977B2 (en) * 2011-03-18 2014-08-12 Dolby Laboratories Licensing Corporation Nonlinear reference signal processing for echo suppression
US9065895B2 (en) 2012-02-22 2015-06-23 Broadcom Corporation Non-linear echo cancellation
GB2510331A (en) 2012-12-21 2014-08-06 Microsoft Corp Echo suppression in an audio signal
GB2512022A (en) 2012-12-21 2014-09-24 Microsoft Corp Echo suppression

Also Published As

Publication number Publication date
EP2920948A1 (en) 2015-09-23
KR20150096423A (ko) 2015-08-24
JP2016503262A (ja) 2016-02-01
WO2014100792A1 (en) 2014-06-26
CN104871520A (zh) 2015-08-26
GB201223246D0 (en) 2013-02-06
US20140177822A1 (en) 2014-06-26
US9036814B2 (en) 2015-05-19
EP2920948B1 (en) 2017-02-01
KR102170341B1 (ko) 2020-10-26
CN104871520B (zh) 2017-10-17
GB2509493A (en) 2014-07-09

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