WO2007130765A3 - Echo and noise cancellation - Google Patents

Echo and noise cancellation Download PDF

Info

Publication number
WO2007130765A3
WO2007130765A3 PCT/US2007/065686 US2007065686W WO2007130765A3 WO 2007130765 A3 WO2007130765 A3 WO 2007130765A3 US 2007065686 W US2007065686 W US 2007065686W WO 2007130765 A3 WO2007130765 A3 WO 2007130765A3
Authority
WO
WIPO (PCT)
Prior art keywords
signal
echo
output
microphone
speaker
Prior art date
Application number
PCT/US2007/065686
Other languages
French (fr)
Other versions
WO2007130765A2 (en
Inventor
Xiadong Mao
Original Assignee
Sony Computer Entertainment Inc
Xiadong Mao
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
Priority claimed from US11/418,989 external-priority patent/US8139793B2/en
Priority claimed from US11/381,728 external-priority patent/US7545926B2/en
Priority claimed from PCT/US2006/017483 external-priority patent/WO2006121896A2/en
Priority claimed from US11/381,727 external-priority patent/US7697700B2/en
Priority claimed from US11/429,047 external-priority patent/US8233642B2/en
Priority claimed from US11/381,721 external-priority patent/US8947347B2/en
Priority claimed from US11/381,724 external-priority patent/US8073157B2/en
Priority claimed from US11/381,729 external-priority patent/US7809145B2/en
Priority claimed from US11/381,725 external-priority patent/US7783061B2/en
Priority claimed from US11/418,988 external-priority patent/US8160269B2/en
Application filed by Sony Computer Entertainment Inc, Xiadong Mao filed Critical Sony Computer Entertainment Inc
Priority to EP07759872A priority Critical patent/EP2014132A4/en
Priority to JP2009509908A priority patent/JP4476355B2/en
Publication of WO2007130765A2 publication Critical patent/WO2007130765A2/en
Publication of WO2007130765A3 publication Critical patent/WO2007130765A3/en

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Processing of the speech or voice signal 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
    • 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Processing of the speech or voice signal 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
    • G10L21/0216—Noise filtering characterised by the method used for estimating noise
    • G10L2021/02161—Number of inputs available containing the signal or the noise to be suppressed
    • G10L2021/02163—Only one microphone
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
    • G10L25/18—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being spectral information of each sub-band

Abstract

Methods and apparatus for echo cancellation in a system having a speaker and a microphone are disclosed. The speaker receives a speaker signal x(t). The microphone receives a microphone signal d(t) containing a local signal s(t) and an echo signal x1(t) that is dependent on the speaker signal x(t). The microphone signal d(t) is filtered in parallel with first and second adaptive filters having complementary echo cancellation properties relative to each other. A minimum echo output e3(t) is determined from an output e1(t) of the first adaptive filter and an output e2(t) of the second adaptive filter. The minimum echo output has a smaller energy and less correlation to the speaker signal x(t). A microphone output is then generated using the minimum echo output e3(t).
PCT/US2007/065686 2006-05-04 2007-03-30 Echo and noise cancellation WO2007130765A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP07759872A EP2014132A4 (en) 2006-05-04 2007-03-30 Echo and noise cancellation
JP2009509908A JP4476355B2 (en) 2006-05-04 2007-03-30 Echo and noise cancellation

Applications Claiming Priority (20)

Application Number Priority Date Filing Date Title
US11/381,727 2006-05-04
US11/429,047 2006-05-04
US11/381,721 US8947347B2 (en) 2003-08-27 2006-05-04 Controlling actions in a video game unit
US11/381,725 US7783061B2 (en) 2003-08-27 2006-05-04 Methods and apparatus for the targeted sound detection
US11/381,724 2006-05-04
US11/381,729 2006-05-04
US11/418,988 2006-05-04
US11/418,988 US8160269B2 (en) 2003-08-27 2006-05-04 Methods and apparatuses for adjusting a listening area for capturing sounds
US11/381,729 US7809145B2 (en) 2006-05-04 2006-05-04 Ultra small microphone array
US11/418,989 2006-05-04
US11/381,728 2006-05-04
US11/418,989 US8139793B2 (en) 2003-08-27 2006-05-04 Methods and apparatus for capturing audio signals based on a visual image
US11/381,725 2006-05-04
US11/381,728 US7545926B2 (en) 2006-05-04 2006-05-04 Echo and noise cancellation
US11/381,724 US8073157B2 (en) 2003-08-27 2006-05-04 Methods and apparatus for targeted sound detection and characterization
US11/381,721 2006-05-04
USPCT/US2006/017483 2006-05-04
US11/429,047 US8233642B2 (en) 2003-08-27 2006-05-04 Methods and apparatuses for capturing an audio signal based on a location of the signal
US11/381,727 US7697700B2 (en) 2006-05-04 2006-05-04 Noise removal for electronic device with far field microphone on console
PCT/US2006/017483 WO2006121896A2 (en) 2005-05-05 2006-05-04 Microphone array based selective sound source listening and video game control

Publications (2)

Publication Number Publication Date
WO2007130765A2 WO2007130765A2 (en) 2007-11-15
WO2007130765A3 true WO2007130765A3 (en) 2008-12-18

Family

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Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/US2007/065686 WO2007130765A2 (en) 2006-05-04 2007-03-30 Echo and noise cancellation
PCT/US2007/065701 WO2007130766A2 (en) 2006-05-04 2007-03-30 Narrow band noise reduction for speech enhancement

Family Applications After (1)

Application Number Title Priority Date Filing Date
PCT/US2007/065701 WO2007130766A2 (en) 2006-05-04 2007-03-30 Narrow band noise reduction for speech enhancement

Country Status (3)

Country Link
EP (2) EP2012725A4 (en)
JP (3) JP4866958B2 (en)
WO (2) WO2007130765A2 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8738367B2 (en) 2009-03-18 2014-05-27 Nec Corporation Speech signal processing device
JP4964267B2 (en) * 2009-04-03 2012-06-27 有限会社ケプストラム Adaptive filter and echo canceller having the same
JP2010249939A (en) * 2009-04-13 2010-11-04 Sony Corp Noise reducing device and noise determination method
CN104380378A (en) * 2012-05-31 2015-02-25 丰田自动车株式会社 Audio source detection device, noise model generation device, noise reduction device, audio source direction estimation device, approaching vehicle detection device and noise reduction method
CN109166589A (en) * 2018-08-13 2019-01-08 深圳市腾讯网络信息技术有限公司 Using sound suppressing method, device, medium and equipment
CN114868183A (en) * 2019-12-18 2022-08-05 杜比实验室特许公司 Filter adaptive step size control for echo cancellation
CN113689871A (en) * 2020-05-19 2021-11-23 阿里巴巴集团控股有限公司 Echo cancellation method and device
CN112017679B (en) * 2020-08-05 2024-01-26 海尔优家智能科技（北京）有限公司 Method, device and equipment for updating adaptive filter coefficients

Citations (5)

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US6263078B1 (en) * 1999-01-07 2001-07-17 Signalworks, Inc. Acoustic echo canceller with fast volume control compensation
US6426979B1 (en) * 1999-04-29 2002-07-30 Legerity, Inc. Adaptation control algorithm for echo cancellation using signal-value based analysis
US20040161101A1 (en) * 2003-02-19 2004-08-19 Yiu Ka Fai Cedric Echo canceller
US6834108B1 (en) * 1998-02-13 2004-12-21 Infineon Technologies Ag Method for improving acoustic noise attenuation in hand-free devices
US7039181B2 (en) * 1999-11-03 2006-05-02 Tellabs Operations, Inc. Consolidated voice activity detection and noise estimation

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Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6834108B1 (en) * 1998-02-13 2004-12-21 Infineon Technologies Ag Method for improving acoustic noise attenuation in hand-free devices
US6263078B1 (en) * 1999-01-07 2001-07-17 Signalworks, Inc. Acoustic echo canceller with fast volume control compensation
US6426979B1 (en) * 1999-04-29 2002-07-30 Legerity, Inc. Adaptation control algorithm for echo cancellation using signal-value based analysis
US7039181B2 (en) * 1999-11-03 2006-05-02 Tellabs Operations, Inc. Consolidated voice activity detection and noise estimation
US20040161101A1 (en) * 2003-02-19 2004-08-19 Yiu Ka Fai Cedric Echo canceller

Non-Patent Citations (1)

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Title
See also references of EP2014132A4 *

Also Published As

Publication number Publication date
EP2012725A4 (en) 2011-10-12
WO2007130766A3 (en) 2008-09-04
JP4476355B2 (en) 2010-06-09
WO2007130766A2 (en) 2007-11-15
JP4833343B2 (en) 2011-12-07
JP4866958B2 (en) 2012-02-01
JP2010171985A (en) 2010-08-05
EP2014132A2 (en) 2009-01-14
JP2009535996A (en) 2009-10-01
EP2014132A4 (en) 2013-01-02
WO2007130765A2 (en) 2007-11-15
JP2009535997A (en) 2009-10-01
EP2012725A2 (en) 2009-01-14

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