DE69420027D1 - Rauschverminderung - Google Patents

Rauschverminderung

Info

Publication number
DE69420027D1
DE69420027D1 DE69420027T DE69420027T DE69420027D1 DE 69420027 D1 DE69420027 D1 DE 69420027D1 DE 69420027 T DE69420027 T DE 69420027T DE 69420027 T DE69420027 T DE 69420027T DE 69420027 D1 DE69420027 D1 DE 69420027D1
Authority
DE
Germany
Prior art keywords
noise reduction
noise
reduction
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.)
Expired - Lifetime
Application number
DE69420027T
Other languages
English (en)
Other versions
DE69420027T2 (de
Inventor
Philip Crozier
Barry Cheetham
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.)
British Telecommunications PLC
Original Assignee
British Telecommunications PLC
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 British Telecommunications PLC filed Critical British Telecommunications PLC
Publication of DE69420027D1 publication Critical patent/DE69420027D1/de
Application granted granted Critical
Publication of DE69420027T2 publication Critical patent/DE69420027T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • 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
    • G10L21/0232—Processing in the frequency domain
DE69420027T 1993-02-12 1994-02-11 Rauschverminderung Expired - Lifetime DE69420027T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP93301024 1993-02-12
PCT/GB1994/000278 WO1994018666A1 (en) 1993-02-12 1994-02-11 Noise reduction

Publications (2)

Publication Number Publication Date
DE69420027D1 true DE69420027D1 (de) 1999-09-16
DE69420027T2 DE69420027T2 (de) 2000-07-06

Family

ID=8214300

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69420027T Expired - Lifetime DE69420027T2 (de) 1993-02-12 1994-02-11 Rauschverminderung

Country Status (10)

Country Link
US (1) US5742927A (de)
EP (1) EP0683916B1 (de)
JP (1) JPH08506427A (de)
AU (1) AU676714B2 (de)
CA (1) CA2155832C (de)
DE (1) DE69420027T2 (de)
ES (1) ES2137355T3 (de)
NO (1) NO953169L (de)
SG (1) SG49709A1 (de)
WO (1) WO1994018666A1 (de)

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SE505156C2 (sv) * 1995-01-30 1997-07-07 Ericsson Telefon Ab L M Förfarande för bullerundertryckning genom spektral subtraktion
DE19521258A1 (de) * 1995-06-10 1996-12-12 Philips Patentverwaltung Spracherkennungssystem
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DE19629132A1 (de) * 1996-07-19 1998-01-22 Daimler Benz Ag Verfahren zur Verringerung von Störungen eines Sprachsignals
JP3266819B2 (ja) * 1996-07-30 2002-03-18 株式会社エイ・ティ・アール人間情報通信研究所 周期信号変換方法、音変換方法および信号分析方法
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AU8102198A (en) * 1997-07-01 1999-01-25 Partran Aps A method of noise reduction in speech signals and an apparatus for performing the method
FR2768547B1 (fr) * 1997-09-18 1999-11-19 Matra Communication Procede de debruitage d'un signal de parole numerique
FR2768544B1 (fr) * 1997-09-18 1999-11-19 Matra Communication Procede de detection d'activite vocale
US6717991B1 (en) * 1998-05-27 2004-04-06 Telefonaktiebolaget Lm Ericsson (Publ) System and method for dual microphone signal noise reduction using spectral subtraction
US6549586B2 (en) * 1999-04-12 2003-04-15 Telefonaktiebolaget L M Ericsson System and method for dual microphone signal noise reduction using spectral subtraction
US7209567B1 (en) 1998-07-09 2007-04-24 Purdue Research Foundation Communication system with adaptive noise suppression
US6453289B1 (en) 1998-07-24 2002-09-17 Hughes Electronics Corporation Method of noise reduction for speech codecs
GB2341299A (en) * 1998-09-04 2000-03-08 Motorola Ltd Suppressing noise in a speech communications unit
US6173258B1 (en) * 1998-09-09 2001-01-09 Sony Corporation Method for reducing noise distortions in a speech recognition system
US7003120B1 (en) 1998-10-29 2006-02-21 Paul Reed Smith Guitars, Inc. Method of modifying harmonic content of a complex waveform
US6766288B1 (en) 1998-10-29 2004-07-20 Paul Reed Smith Guitars Fast find fundamental method
US6604071B1 (en) * 1999-02-09 2003-08-05 At&T Corp. Speech enhancement with gain limitations based on speech activity
SE521465C2 (sv) * 1999-06-07 2003-11-04 Ericsson Telefon Ab L M Mobiltelefon med taligenkänningssystem innehållande en beräkningsenhet för spektralavstånd.
JP3454190B2 (ja) * 1999-06-09 2003-10-06 三菱電機株式会社 雑音抑圧装置および方法
DE19930707C2 (de) * 1999-07-02 2003-04-10 Forschungszentrum Juelich Gmbh Meßverfahren, Meßvorrichtung sowie Auswerteelektronik
EP1081685A3 (de) * 1999-09-01 2002-04-24 TRW Inc. Rauschverminderungsverfahren in einem Sprachsignal mit einem einzigen Mikrophon
FR2799601B1 (fr) * 1999-10-08 2002-08-02 Schlumberger Systems & Service Dispositif et procede d'annulation de bruit
JP3454206B2 (ja) 1999-11-10 2003-10-06 三菱電機株式会社 雑音抑圧装置及び雑音抑圧方法
US6804640B1 (en) * 2000-02-29 2004-10-12 Nuance Communications Signal noise reduction using magnitude-domain spectral subtraction
DE10026904A1 (de) 2000-04-28 2002-01-03 Deutsche Telekom Ag Verfahren zur Berechnung des die Lautstärke mitbestimmenden Verstärkungsfaktors für ein codiert übertragenes Sprachsignal
US7254532B2 (en) 2000-04-28 2007-08-07 Deutsche Telekom Ag Method for making a voice activity decision
AU2002241476A1 (en) * 2000-11-22 2002-07-24 Defense Group Inc. Noise filtering utilizing non-gaussian signal statistics
JP2002221988A (ja) * 2001-01-25 2002-08-09 Toshiba Corp 音声信号の雑音抑圧方法と装置及び音声認識装置
US7315623B2 (en) * 2001-12-04 2008-01-01 Harman Becker Automotive Systems Gmbh Method for supressing surrounding noise in a hands-free device and hands-free device
RU2206960C1 (ru) * 2002-06-24 2003-06-20 Общество с ограниченной ответственностью "Центр речевых технологий" Способ подавления шума в информационном сигнале и устройство для его осуществления
US6874796B2 (en) * 2002-12-04 2005-04-05 George A. Mercurio Sulky with buck-bar
JP3907194B2 (ja) * 2003-05-23 2007-04-18 株式会社東芝 音声認識装置、音声認識方法及び音声認識プログラム
WO2005041170A1 (en) * 2003-10-24 2005-05-06 Nokia Corpration Noise-dependent postfiltering
KR20050049103A (ko) * 2003-11-21 2005-05-25 삼성전자주식회사 포만트 대역을 이용한 다이얼로그 인핸싱 방법 및 장치
DE10356063B4 (de) * 2003-12-01 2005-08-18 Siemens Ag Verfahren zur Entstörung von Audiosignalen
US7643991B2 (en) * 2004-08-12 2010-01-05 Nuance Communications, Inc. Speech enhancement for electronic voiced messages
KR100640865B1 (ko) * 2004-09-07 2006-11-02 엘지전자 주식회사 음성 품질 향상 방법 및 장치
KR100657948B1 (ko) * 2005-02-03 2006-12-14 삼성전자주식회사 음성향상장치 및 방법
TW200725308A (en) * 2005-12-26 2007-07-01 Ind Tech Res Inst Method for removing background noise from a speech signal
JP4863713B2 (ja) * 2005-12-29 2012-01-25 富士通株式会社 雑音抑制装置、雑音抑制方法、及びコンピュータプログラム
EP1918910B1 (de) * 2006-10-31 2009-03-11 Harman Becker Automotive Systems GmbH Modellbasierte Verbesserung von Sprachsignalen
US7818168B1 (en) * 2006-12-01 2010-10-19 The United States Of America As Represented By The Director, National Security Agency Method of measuring degree of enhancement to voice signal
US20080312916A1 (en) * 2007-06-15 2008-12-18 Mr. Alon Konchitsky Receiver Intelligibility Enhancement System
US8868418B2 (en) * 2007-06-15 2014-10-21 Alon Konchitsky Receiver intelligibility enhancement system
US20090027648A1 (en) * 2007-07-25 2009-01-29 Asml Netherlands B.V. Method of reducing noise in an original signal, and signal processing device therefor
US9173025B2 (en) 2012-02-08 2015-10-27 Dolby Laboratories Licensing Corporation Combined suppression of noise, echo, and out-of-location signals
US8712076B2 (en) 2012-02-08 2014-04-29 Dolby Laboratories Licensing Corporation Post-processing including median filtering of noise suppression gains
US9280984B2 (en) 2012-05-14 2016-03-08 Htc Corporation Noise cancellation method
WO2013187932A1 (en) 2012-06-10 2013-12-19 Nuance Communications, Inc. Noise dependent signal processing for in-car communication systems with multiple acoustic zones
DE112012006876B4 (de) 2012-09-04 2021-06-10 Cerence Operating Company Verfahren und Sprachsignal-Verarbeitungssystem zur formantabhängigen Sprachsignalverstärkung
WO2014070139A2 (en) 2012-10-30 2014-05-08 Nuance Communications, Inc. Speech enhancement
EP3107097B1 (de) * 2015-06-17 2017-11-15 Nxp B.V. Verbesserte sprachverständlichkeit
US10431242B1 (en) * 2017-11-02 2019-10-01 Gopro, Inc. Systems and methods for identifying speech based on spectral features
CN113008851B (zh) * 2021-02-20 2024-04-12 大连海事大学 一种基于斜入式激发提高共聚焦结构微弱信号检测信噪比的装置

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GB890687A (en) * 1958-07-29 1962-03-07 Ass Elect Ind Improvements relating to dynamo-electric machines
US3180936A (en) * 1960-12-01 1965-04-27 Bell Telephone Labor Inc Apparatus for suppressing noise and distortion in communication signals
US4630304A (en) * 1985-07-01 1986-12-16 Motorola, Inc. Automatic background noise estimator for a noise suppression system
GB8801014D0 (en) * 1988-01-18 1988-02-17 British Telecomm Noise reduction
GB2239971B (en) * 1989-12-06 1993-09-29 Ca Nat Research Council System for separating speech from background noise
US5479560A (en) * 1992-10-30 1995-12-26 Technology Research Association Of Medical And Welfare Apparatus Formant detecting device and speech processing apparatus

Also Published As

Publication number Publication date
NO953169D0 (no) 1995-08-11
JPH08506427A (ja) 1996-07-09
ES2137355T3 (es) 1999-12-16
AU676714B2 (en) 1997-03-20
US5742927A (en) 1998-04-21
CA2155832C (en) 2000-07-18
WO1994018666A1 (en) 1994-08-18
SG49709A1 (en) 1998-06-15
DE69420027T2 (de) 2000-07-06
EP0683916B1 (de) 1999-08-11
NO953169L (no) 1995-10-11
AU6006194A (en) 1994-08-29
EP0683916A1 (de) 1995-11-29

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