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DE68913139D1 - Störunterdrückung. - Google Patents

Störunterdrückung.

Info

Publication number
DE68913139D1
DE68913139D1 DE89901730T DE68913139T DE68913139D1 DE 68913139 D1 DE68913139 D1 DE 68913139D1 DE 89901730 T DE89901730 T DE 89901730T DE 68913139 T DE68913139 T DE 68913139T DE 68913139 D1 DE68913139 D1 DE 68913139D1
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 - Fee Related
Application number
DE89901730T
Other languages
English (en)
Other versions
DE68913139T2 (de
Inventor
Edward Munday
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 DE68913139D1 publication Critical patent/DE68913139D1/de
Application granted granted Critical
Publication of DE68913139T2 publication Critical patent/DE68913139T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/007—Volume compression or expansion in amplifiers of digital or coded signals
    • 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
    • G10L21/0216—Noise filtering characterised by the method used for estimating noise
    • G10L21/0232—Processing in the frequency domain

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Quality & Reliability (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Noise Elimination (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
DE68913139T 1988-01-18 1989-01-18 Störunterdrückung. Expired - Fee Related DE68913139T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB888801014A GB8801014D0 (en) 1988-01-18 1988-01-18 Noise reduction
PCT/GB1989/000049 WO1989006877A1 (en) 1988-01-18 1989-01-18 Noise reduction

Publications (2)

Publication Number Publication Date
DE68913139D1 true DE68913139D1 (de) 1994-03-24
DE68913139T2 DE68913139T2 (de) 1994-06-23

Family

ID=10630116

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68913139T Expired - Fee Related DE68913139T2 (de) 1988-01-18 1989-01-18 Störunterdrückung.

Country Status (8)

Country Link
US (1) US5133013A (de)
EP (1) EP0367803B1 (de)
JP (1) JP3204501B2 (de)
CA (1) CA1332626C (de)
DE (1) DE68913139T2 (de)
GB (2) GB8801014D0 (de)
HK (1) HK121496A (de)
WO (1) WO1989006877A1 (de)

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US5432859A (en) * 1993-02-23 1995-07-11 Novatel Communications Ltd. Noise-reduction system
US5533133A (en) * 1993-03-26 1996-07-02 Hughes Aircraft Company Noise suppression in digital voice communications systems
EP0707763B1 (de) * 1993-07-07 2001-08-29 Picturetel Corporation Verringerung des hintergrundrauschens zur sprachverbesserung
US5651071A (en) * 1993-09-17 1997-07-22 Audiologic, Inc. Noise reduction system for binaural hearing aid
JPH07193548A (ja) * 1993-12-25 1995-07-28 Sony Corp 雑音低減処理方法
GB9405211D0 (en) * 1994-03-17 1994-04-27 Deas Alexander R Noise cancellation apparatus
GB9414484D0 (en) * 1994-07-18 1994-09-21 Marconi Gec Ltd An apparatus for cancelling vibrations
EP0693747A3 (de) * 1994-07-18 1997-12-29 Gec-Marconi Limited Anordnung zur Schwingungsunterdrückung
JPH08102687A (ja) * 1994-09-29 1996-04-16 Yamaha Corp 音声送受信方式
US6009385A (en) * 1994-12-15 1999-12-28 British Telecommunications Public Limited Company Speech processing
US5774846A (en) * 1994-12-19 1998-06-30 Matsushita Electric Industrial Co., Ltd. Speech coding apparatus, linear prediction coefficient analyzing apparatus and noise reducing apparatus
SE505156C2 (sv) * 1995-01-30 1997-07-07 Ericsson Telefon Ab L M Förfarande för bullerundertryckning genom spektral subtraktion
US6263307B1 (en) * 1995-04-19 2001-07-17 Texas Instruments Incorporated Adaptive weiner filtering using line spectral frequencies
JP3591068B2 (ja) * 1995-06-30 2004-11-17 ソニー株式会社 音声信号の雑音低減方法
FI100840B (fi) 1995-12-12 1998-02-27 Nokia Mobile Phones Ltd Kohinanvaimennin ja menetelmä taustakohinan vaimentamiseksi kohinaises ta puheesta sekä matkaviestin
SE9700772D0 (sv) * 1997-03-03 1997-03-03 Ericsson Telefon Ab L M A high resolution post processing method for a speech decoder
AU764316C (en) * 1997-04-16 2004-06-24 Emma Mixed Signal C.V. Apparatus for noise reduction, particulary in hearing aids
EP1326479B2 (de) 1997-04-16 2018-05-23 Emma Mixed Signal C.V. Verfahren und Vorrichtung zur Rauschverminderung, insbesondere bei Hörhilfegeräten
US6510408B1 (en) * 1997-07-01 2003-01-21 Patran Aps Method of noise reduction in speech signals and an apparatus for performing the method
GB2336978B (en) * 1997-07-02 2000-11-08 Simoco Int Ltd Method and apparatus for speech enhancement in a speech communication system
GB9714001D0 (en) * 1997-07-02 1997-09-10 Simoco Europ Limited Method and apparatus for speech enhancement in a speech communication system
US5913187A (en) * 1997-08-29 1999-06-15 Nortel Networks Corporation Nonlinear filter for noise suppression in linear prediction speech processing devices
US6157908A (en) * 1998-01-27 2000-12-05 Hm Electronics, Inc. Order point communication system and method
US6415253B1 (en) * 1998-02-20 2002-07-02 Meta-C Corporation Method and apparatus for enhancing noise-corrupted speech
EP0992978A4 (de) * 1998-03-30 2002-01-16 Mitsubishi Electric Corp Geräuschverminderungsvorrichtung und geräuschverminderungsverfahren
US6453289B1 (en) * 1998-07-24 2002-09-17 Hughes Electronics Corporation Method of noise reduction for speech codecs
US6328507B1 (en) 1998-08-04 2001-12-11 Shoda Iron Works Co., Ltd Working table apparatus for a cutting machine tool
US7991448B2 (en) * 1998-10-15 2011-08-02 Philips Electronics North America Corporation Method, apparatus, and system for removing motion artifacts from measurements of bodily parameters
US6519486B1 (en) 1998-10-15 2003-02-11 Ntc Technology Inc. Method, apparatus and system for removing motion artifacts from measurements of bodily parameters
US6993480B1 (en) 1998-11-03 2006-01-31 Srs Labs, Inc. Voice intelligibility enhancement system
US6604071B1 (en) * 1999-02-09 2003-08-05 At&T Corp. Speech enhancement with gain limitations based on speech activity
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
US6738445B1 (en) 1999-11-26 2004-05-18 Ivl Technologies Ltd. Method and apparatus for changing the frequency content of an input signal and for changing perceptibility of a component of an input signal
US6931292B1 (en) 2000-06-19 2005-08-16 Jabra Corporation Noise reduction method and apparatus
US20030216907A1 (en) * 2002-05-14 2003-11-20 Acoustic Technologies, Inc. Enhancing the aural perception of speech
US7292985B2 (en) * 2004-12-02 2007-11-06 Janus Development Group Device and method for reducing stuttering
US7672842B2 (en) * 2006-07-26 2010-03-02 Mitsubishi Electric Research Laboratories, Inc. Method and system for FFT-based companding for automatic speech recognition
US7459962B2 (en) * 2006-07-26 2008-12-02 The Boeing Company Transient signal detection algorithm using order statistic filters applied to the power spectral estimate
JP4827661B2 (ja) * 2006-08-30 2011-11-30 富士通株式会社 信号処理方法及び装置
US7925307B2 (en) * 2006-10-31 2011-04-12 Palm, Inc. Audio output using multiple speakers
US8311590B2 (en) * 2006-12-05 2012-11-13 Hewlett-Packard Development Company, L.P. System and method for improved loudspeaker functionality
US8050434B1 (en) 2006-12-21 2011-11-01 Srs Labs, Inc. Multi-channel audio enhancement system
ES2654318T3 (es) * 2007-07-27 2018-02-13 Stichting Vumc Supresión de ruido en señales de voz
US8355908B2 (en) * 2008-03-24 2013-01-15 JVC Kenwood Corporation Audio signal processing device for noise reduction and audio enhancement, and method for the same
ES2385293T3 (es) * 2008-09-19 2012-07-20 Dolby Laboratories Licensing Corporation Procesamiento de señales ascendentes para dispositivos clientes en una red inalámbrica de células pequeñas
KR101547344B1 (ko) * 2008-10-31 2015-08-27 삼성전자 주식회사 음성복원장치 및 그 방법
CN101986386B (zh) * 2009-07-29 2012-09-26 比亚迪股份有限公司 一种语音背景噪声的消除方法和装置
WO2015038975A1 (en) * 2013-09-12 2015-03-19 Saudi Arabian Oil Company Dynamic threshold methods, systems, computer readable media, and program code for filtering noise and restoring attenuated high-frequency components of acoustic signals
US9800276B2 (en) 2013-10-08 2017-10-24 Cisco Technology, Inc. Ingress cancellation tachometer
WO2017143334A1 (en) * 2016-02-19 2017-08-24 New York University Method and system for multi-talker babble noise reduction using q-factor based signal decomposition
EP3429230A1 (de) * 2017-07-13 2019-01-16 GN Hearing A/S Hörgerät und verfahren mit nichtintrusiver vorhersage der sprachverständlichkeit
US11170799B2 (en) * 2019-02-13 2021-11-09 Harman International Industries, Incorporated Nonlinear noise reduction system
CN110931035B (zh) * 2019-12-09 2023-10-10 广州酷狗计算机科技有限公司 音频处理方法、装置、设备及存储介质

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US3989897A (en) * 1974-10-25 1976-11-02 Carver R W Method and apparatus for reducing noise content in audio signals
US4221934A (en) * 1979-05-11 1980-09-09 Rca Corporation Compandor for group of FDM signals
DE3029441A1 (de) * 1980-08-02 1982-03-04 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Signaluebertragungsschaltung mit steuerbarem uebertragungsmass
US4544916A (en) * 1982-08-31 1985-10-01 At&T Bell Laboratories Digital code translator
US4630304A (en) * 1985-07-01 1986-12-16 Motorola, Inc. Automatic background noise estimator for a noise suppression system
US4897878A (en) * 1985-08-26 1990-01-30 Itt Corporation Noise compensation in speech recognition apparatus
US4658426A (en) * 1985-10-10 1987-04-14 Harold Antin Adaptive noise suppressor
US4829578A (en) * 1986-10-02 1989-05-09 Dragon Systems, Inc. Speech detection and recognition apparatus for use with background noise of varying levels
US4887299A (en) * 1987-11-12 1989-12-12 Nicolet Instrument Corporation Adaptive, programmable signal processing hearing aid

Also Published As

Publication number Publication date
EP0367803B1 (de) 1994-02-16
GB8801014D0 (en) 1988-02-17
WO1989006877A1 (en) 1989-07-27
GB8918755D0 (en) 1989-10-04
CA1332626C (en) 1994-10-18
EP0367803A1 (de) 1990-05-16
DE68913139T2 (de) 1994-06-23
GB2220330B (en) 1992-03-25
JPH02503256A (ja) 1990-10-04
JP3204501B2 (ja) 2001-09-04
GB2220330A (en) 1990-01-04
HK121496A (en) 1996-07-19
US5133013A (en) 1992-07-21

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee