CN104871520B - 回波抑制 - Google Patents

回波抑制 Download PDF

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Publication number
CN104871520B
CN104871520B CN201380067268.0A CN201380067268A CN104871520B CN 104871520 B CN104871520 B CN 104871520B CN 201380067268 A CN201380067268 A CN 201380067268A CN 104871520 B CN104871520 B CN 104871520B
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CN
China
Prior art keywords
echo
audio signal
received
signal
suppressing
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.)
Active
Application number
CN201380067268.0A
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English (en)
Chinese (zh)
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CN104871520A (zh
Inventor
K.V.索伦森
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Microsoft Technology Licensing LLC
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Microsoft Technology Licensing LLC
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Publication of CN104871520A publication Critical patent/CN104871520A/zh
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Publication of CN104871520B publication Critical patent/CN104871520B/zh
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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
    • 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
    • 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)
  • Computational Linguistics (AREA)
  • Quality & Reliability (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Telephone Function (AREA)
CN201380067268.0A 2012-12-21 2013-12-21 回波抑制 Active CN104871520B (zh)

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 US9036814B2 (en) 2012-12-21 2013-05-07 Echo suppression
US13/889229 2013-05-07
PCT/US2013/077353 WO2014100792A1 (en) 2012-12-21 2013-12-21 Echo suppression

Publications (2)

Publication Number Publication Date
CN104871520A CN104871520A (zh) 2015-08-26
CN104871520B true CN104871520B (zh) 2017-10-17

Family

ID=47682465

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201380067268.0A Active CN104871520B (zh) 2012-12-21 2013-12-21 回波抑制

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
CN108028876B (zh) * 2015-09-25 2019-07-23 美高森美半导体(美国)股份有限公司 声学回音路径改变检测装置和方法
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

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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
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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
WO2002093774A1 (en) 2001-05-17 2002-11-21 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
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US7027591B2 (en) 2002-10-16 2006-04-11 Ericsson Inc. Integrated noise cancellation and residual echo suppression
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WO2004064365A1 (en) 2003-01-08 2004-07-29 Philips Intellectual Property & Standards Gmbh Device and method for suppressing echo, in particular in telephones
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DE602005020662D1 (de) 2004-10-13 2010-05-27 Koninkl Philips Electronics Nv Echolöschung
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JP2007097050A (ja) * 2005-09-30 2007-04-12 Saxa Inc エコー抑制回路および電話装置
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GB2512022A (en) 2012-12-21 2014-09-24 Microsoft Corp Echo suppression
GB2510331A (en) 2012-12-21 2014-08-06 Microsoft Corp Echo suppression in an audio signal

Also Published As

Publication number Publication date
GB201223246D0 (en) 2013-02-06
US20140177822A1 (en) 2014-06-26
CN104871520A (zh) 2015-08-26
JP2016503262A (ja) 2016-02-01
US9036814B2 (en) 2015-05-19
EP2920948A1 (en) 2015-09-23
WO2014100792A1 (en) 2014-06-26
KR102170341B1 (ko) 2020-10-26
GB2509493A (en) 2014-07-09
JP6422884B2 (ja) 2018-11-14
KR20150096423A (ko) 2015-08-24
EP2920948B1 (en) 2017-02-01

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