KR102170172B1 - 에코 억제 - Google Patents

에코 억제 Download PDF

Info

Publication number
KR102170172B1
KR102170172B1 KR1020157019200A KR20157019200A KR102170172B1 KR 102170172 B1 KR102170172 B1 KR 102170172B1 KR 1020157019200 A KR1020157019200 A KR 1020157019200A KR 20157019200 A KR20157019200 A KR 20157019200A KR 102170172 B1 KR102170172 B1 KR 102170172B1
Authority
KR
South Korea
Prior art keywords
echo
model
audio signal
estimate
received audio
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
KR1020157019200A
Other languages
English (en)
Korean (ko)
Other versions
KR20150097686A (ko
Inventor
퍼 아그렌
Original Assignee
마이크로소프트 테크놀로지 라이센싱, 엘엘씨
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 마이크로소프트 테크놀로지 라이센싱, 엘엘씨 filed Critical 마이크로소프트 테크놀로지 라이센싱, 엘엘씨
Publication of KR20150097686A publication Critical patent/KR20150097686A/ko
Application granted granted Critical
Publication of KR102170172B1 publication Critical patent/KR102170172B1/ko
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers
    • H04R3/002—Damping circuit arrangements for transducers, e.g. motional feedback circuits
    • 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
    • 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
    • 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
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers
    • H04R3/02—Circuits for transducers for preventing acoustic reaction, i.e. acoustic oscillatory feedback
    • 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)
  • Acoustics & Sound (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Human Computer Interaction (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Quality & Reliability (AREA)
  • Computational Linguistics (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Telephone Function (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
KR1020157019200A 2012-12-21 2013-12-21 에코 억제 Active KR102170172B1 (ko)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
GB1223238.5 2012-12-21
GB1223238.5A GB2510331A (en) 2012-12-21 2012-12-21 Echo suppression in an audio signal
US13/789,532 2013-03-07
US13/789,532 US9154873B2 (en) 2012-12-21 2013-03-07 Echo suppression
PCT/US2013/077355 WO2014100794A1 (en) 2012-12-21 2013-12-21 Echo suppression

Publications (2)

Publication Number Publication Date
KR20150097686A KR20150097686A (ko) 2015-08-26
KR102170172B1 true KR102170172B1 (ko) 2020-10-26

Family

ID=47682458

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020157019200A Active KR102170172B1 (ko) 2012-12-21 2013-12-21 에코 억제

Country Status (7)

Country Link
US (1) US9154873B2 (https=)
EP (1) EP2920950B1 (https=)
JP (1) JP6422886B2 (https=)
KR (1) KR102170172B1 (https=)
CN (1) CN104969537B (https=)
GB (1) GB2510331A (https=)
WO (1) WO2014100794A1 (https=)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2509493A (en) 2012-12-21 2014-07-09 Microsoft Corp Suppressing Echo in a received audio signal by estimating the echo power in the received audio signal based on an FIR filter estimate
GB2512022A (en) 2012-12-21 2014-09-24 Microsoft Corp Echo suppression
US10056092B2 (en) * 2014-09-12 2018-08-21 Nuance Communications, Inc. Residual interference suppression
EP3354004B1 (en) * 2015-09-25 2021-10-27 Microsemi Semiconductor (U.S.) Inc. Acoustic echo path change detection apparatus and method
DE102015222105A1 (de) * 2015-11-10 2017-05-11 Volkswagen Aktiengesellschaft Audiosignalverarbeitung in einem Fahrzeug
US10045137B2 (en) * 2016-06-30 2018-08-07 Google Llc Bi-magnitude processing framework for nonlinear echo cancellation in mobile devices
CN110140294B (zh) * 2016-12-06 2023-06-27 哈曼国际工业有限公司 用于均衡音频信号的方法和装置
CN106849976A (zh) * 2016-12-28 2017-06-13 深圳天珑无线科技有限公司 一种免提通话时回声消除方法及通信终端
US10481831B2 (en) * 2017-10-02 2019-11-19 Nuance Communications, Inc. System and method for combined non-linear and late echo suppression
CN109003620A (zh) * 2018-05-24 2018-12-14 北京潘达互娱科技有限公司 一种回音消除方法、装置、电子设备及存储介质
CN109587362B (zh) * 2018-12-24 2020-06-26 龙马智芯（珠海横琴）科技有限公司 回声抑制的处理方法和装置
CN111835383B (zh) * 2019-04-17 2022-04-01 达发科技(苏州)有限公司 回音与近端串扰消除系统
US10650839B2 (en) * 2019-06-20 2020-05-12 Intel Corporation Infinite impulse response acoustic echo cancellation in the frequency domain
JP7696676B2 (ja) * 2021-03-26 2025-06-23 株式会社トランストロン エコー抑圧装置、エコー抑圧方法及びエコー抑圧プログラム
CN113178203B (zh) * 2021-04-23 2022-11-04 歌尔股份有限公司 一种回声消除方法、系统、音频设备及可读存储介质
CN113763978B (zh) * 2021-04-25 2024-05-03 腾讯科技（深圳）有限公司 语音信号处理方法、装置、电子设备以及存储介质
CN121262504B (zh) * 2025-12-02 2026-02-10 深圳市乔安科技有限公司 一种应用于监控摄像头的低成本音频回采方法及系统

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012055687A1 (en) * 2010-10-25 2012-05-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Echo suppression comprising modeling of late reverberation components

Family Cites Families (41)

* Cited by examiner, † Cited by third party
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)
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
US20040252826A1 (en) 2001-05-17 2004-12-16 Tian Wen Shun 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
AU2003285714A1 (en) 2003-01-08 2004-08-10 Koninklijke Philips Electronics N.V. Device and method for suppressing echo, in particular in telephones
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
CN101040512B (zh) * 2004-10-13 2010-05-26 皇家飞利浦电子股份有限公司 回波抵消设备与方法
US7894598B2 (en) 2004-12-14 2011-02-22 Nuance Communications, Inc. System for limiting receive audio
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
ATE521064T1 (de) * 2007-10-08 2011-09-15 Harman Becker Automotive Sys Verstärkung und spektralformenanpassung bei der verarbeitung von audiosignalen
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
CN101262530B (zh) * 2008-04-29 2011-12-07 中兴通讯股份有限公司 一种消除移动终端回音的装置
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
ES2558559T3 (es) 2011-02-03 2016-02-05 Telefonaktiebolaget L M Ericsson (Publ) Estimación y supresión de no linealidades de altavoces armónicos
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
GB2509493A (en) 2012-12-21 2014-07-09 Microsoft Corp Suppressing Echo in a received audio signal by estimating the echo power in the received audio signal based on an FIR filter estimate
GB2512022A (en) 2012-12-21 2014-09-24 Microsoft Corp Echo suppression

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012055687A1 (en) * 2010-10-25 2012-05-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Echo suppression comprising modeling of late reverberation components

Also Published As

Publication number Publication date
JP2016503263A (ja) 2016-02-01
CN104969537A (zh) 2015-10-07
JP6422886B2 (ja) 2018-11-14
WO2014100794A1 (en) 2014-06-26
GB201223238D0 (en) 2013-02-06
US9154873B2 (en) 2015-10-06
CN104969537B (zh) 2017-01-18
GB2510331A (en) 2014-08-06
US20140177859A1 (en) 2014-06-26
KR20150097686A (ko) 2015-08-26
EP2920950A1 (en) 2015-09-23
EP2920950B1 (en) 2016-09-21

Similar Documents

Publication Publication Date Title
KR102170172B1 (ko) 에코 억제
JP6422885B2 (ja) エコー抑圧
KR102190833B1 (ko) 에코 억제
KR102194165B1 (ko) 에코 제거기
KR102170341B1 (ko) 에코 억제 기법
US9467571B2 (en) Echo removal

Legal Events

Date Code Title Description
PA0105 International application

Patent event date: 20150716

Patent event code: PA01051R01D

Comment text: International Patent Application

PG1501 Laying open of application
A201 Request for examination
PA0201 Request for examination

Patent event code: PA02012R01D

Patent event date: 20181121

Comment text: Request for Examination of Application

E902 Notification of reason for refusal
PE0902 Notice of grounds for rejection

Comment text: Notification of reason for refusal

Patent event date: 20200107

Patent event code: PE09021S01D

E701 Decision to grant or registration of patent right
PE0701 Decision of registration

Patent event code: PE07011S01D

Comment text: Decision to Grant Registration

Patent event date: 20200720

GRNT Written decision to grant
PR0701 Registration of establishment

Comment text: Registration of Establishment

Patent event date: 20201020

Patent event code: PR07011E01D

PR1002 Payment of registration fee

Payment date: 20201020

End annual number: 3

Start annual number: 1

PG1601 Publication of registration
PR1001 Payment of annual fee

Payment date: 20230921

Start annual number: 4

End annual number: 4

PR1001 Payment of annual fee