DE69131883T2 - Vorrichtung zur Rauschreduzierung - Google Patents

Vorrichtung zur Rauschreduzierung

Info

Publication number
DE69131883T2
DE69131883T2 DE69131883T DE69131883T DE69131883T2 DE 69131883 T2 DE69131883 T2 DE 69131883T2 DE 69131883 T DE69131883 T DE 69131883T DE 69131883 T DE69131883 T DE 69131883T DE 69131883 T2 DE69131883 T2 DE 69131883T2
Authority
DE
Germany
Prior art keywords
noise reduction
reduction device
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
DE69131883T
Other languages
English (en)
Other versions
DE69131883D1 (de
Inventor
Joji Kane
Akira Nohara
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 JP2008594A external-priority patent/JP2830276B2/ja
Priority claimed from JP2008593A external-priority patent/JPH03212697A/ja
Priority claimed from JP2033209A external-priority patent/JP2836889B2/ja
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Application granted granted Critical
Publication of DE69131883D1 publication Critical patent/DE69131883D1/de
Publication of DE69131883T2 publication Critical patent/DE69131883T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G10L15/00—Speech recognition
    • G10L15/02—Feature extraction for speech recognition; Selection of recognition unit
    • 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
DE69131883T 1990-01-18 1991-01-18 Vorrichtung zur Rauschreduzierung Expired - Fee Related DE69131883T2 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2008594A JP2830276B2 (ja) 1990-01-18 1990-01-18 信号処理装置
JP2008593A JPH03212697A (ja) 1990-01-18 1990-01-18 信号処理装置
JP3321290 1990-02-13
JP2033209A JP2836889B2 (ja) 1990-02-13 1990-02-13 信号処理装置

Publications (2)

Publication Number Publication Date
DE69131883D1 DE69131883D1 (de) 2000-02-03
DE69131883T2 true DE69131883T2 (de) 2000-08-10

Family

ID=27454980

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69131883T Expired - Fee Related DE69131883T2 (de) 1990-01-18 1991-01-18 Vorrichtung zur Rauschreduzierung
DE69105760T Expired - Fee Related DE69105760T2 (de) 1990-01-18 1991-01-18 Einrichtung zur Signalverarbeitung.

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE69105760T Expired - Fee Related DE69105760T2 (de) 1990-01-18 1991-01-18 Einrichtung zur Signalverarbeitung.

Country Status (9)

Country Link
US (1) US6038532A (de)
EP (2) EP0438174B1 (de)
KR (1) KR950011964B1 (de)
AU (1) AU633673B2 (de)
CA (1) CA2034354C (de)
DE (2) DE69131883T2 (de)
FI (1) FI104663B (de)
HK (2) HK184895A (de)
NO (1) NO306800B1 (de)

Families Citing this family (45)

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EP0763811B1 (de) * 1990-05-28 2001-06-20 Matsushita Electric Industrial Co., Ltd. Vorrichtung zur Sprachsignalverarbeitung für die Bestimmung eines Sprachsignals
CA2125220C (en) * 1993-06-08 2000-08-15 Joji Kane Noise suppressing apparatus capable of preventing deterioration in high frequency signal characteristic after noise suppression and in balanced signal transmitting system
JP2739811B2 (ja) * 1993-11-29 1998-04-15 日本電気株式会社 雑音抑圧方式
FR2726392B1 (fr) * 1994-10-28 1997-01-10 Alcatel Mobile Comm France Procede et dispositif de suppression de bruit dans un signal de parole, et systeme avec annulation d'echo correspondant
JP3484801B2 (ja) * 1995-02-17 2004-01-06 ソニー株式会社 音声信号の雑音低減方法及び装置
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
SE9700772D0 (sv) * 1997-03-03 1997-03-03 Ericsson Telefon Ab L M A high resolution post processing method for a speech decoder
JPH10257583A (ja) * 1997-03-06 1998-09-25 Asahi Chem Ind Co Ltd 音声処理装置およびその音声処理方法
DE69840583D1 (de) * 1997-04-16 2009-04-02 Emma Mixed Signal Cv Verfahren und Vorrichtung zur Rauschverminderung, insbesondere bei Hörhilfegeräten
FR2768544B1 (fr) 1997-09-18 1999-11-19 Matra Communication Procede de detection d'activite vocale
FR2768546B1 (fr) * 1997-09-18 2000-07-21 Matra Communication Procede de debruitage d'un signal de parole numerique
FR2768547B1 (fr) 1997-09-18 1999-11-19 Matra Communication Procede de debruitage d'un signal de parole numerique
FR2768545B1 (fr) 1997-09-18 2000-07-13 Matra Communication Procede de conditionnement d'un signal de parole numerique
US6269093B1 (en) 1997-12-16 2001-07-31 Nokia Mobile Phones Limited Adaptive removal of disturbance in TDMA acoustic peripheral devices
US6480823B1 (en) * 1998-03-24 2002-11-12 Matsushita Electric Industrial Co., Ltd. Speech detection for noisy conditions
DE19925046A1 (de) * 1999-06-01 2001-05-03 Alcatel Sa Verfahren und Vorrichtung zur Unterdrückung von Rauschen und Echos
EP1081685A3 (de) * 1999-09-01 2002-04-24 TRW Inc. Rauschverminderungsverfahren in einem Sprachsignal mit einem einzigen Mikrophon
US7058572B1 (en) * 2000-01-28 2006-06-06 Nortel Networks Limited Reducing acoustic noise in wireless and landline based telephony
DE10017646A1 (de) * 2000-04-08 2001-10-11 Alcatel Sa Geräuschunterdrückung im Zeitbereich
WO2002056303A2 (en) * 2000-11-22 2002-07-18 Defense Group Inc. Noise filtering utilizing non-gaussian signal statistics
DE60142800D1 (de) 2001-03-28 2010-09-23 Mitsubishi Electric Corp Rauschunterdrücker
DE10126168A1 (de) * 2001-05-30 2002-12-05 Kostal Leopold Gmbh & Co Kg Verfahren zum Bestimmen der Frequenz der im Ankerstromsignal eines kommutierten Gleichstrommotors enthaltenen Stromrippel
DE10144076A1 (de) * 2001-09-07 2003-03-27 Daimler Chrysler Ag Vorrichtung und Verfahren zur Früherkennung und Vorhersage von Aggregateschädigungen
JP2003295899A (ja) * 2002-03-28 2003-10-15 Fujitsu Ltd 音声入力装置
JP2004297273A (ja) * 2003-03-26 2004-10-21 Kenwood Corp 音声信号雑音除去装置、音声信号雑音除去方法及びプログラム
KR100552693B1 (ko) * 2003-10-25 2006-02-20 삼성전자주식회사 피치검출방법 및 장치
CA2454296A1 (en) * 2003-12-29 2005-06-29 Nokia Corporation Method and device for speech enhancement in the presence of background noise
US7692683B2 (en) * 2004-10-15 2010-04-06 Lifesize Communications, Inc. Video conferencing system transcoder
US20060248210A1 (en) * 2005-05-02 2006-11-02 Lifesize Communications, Inc. Controlling video display mode in a video conferencing system
JP4171922B2 (ja) * 2006-04-12 2008-10-29 船井電機株式会社 ミュート装置、液晶ディスプレイテレビ、及びミュート方法
US8140325B2 (en) * 2007-01-04 2012-03-20 International Business Machines Corporation Systems and methods for intelligent control of microphones for speech recognition applications
US20080312916A1 (en) * 2007-06-15 2008-12-18 Mr. Alon Konchitsky Receiver Intelligibility Enhancement System
US20080316295A1 (en) * 2007-06-22 2008-12-25 King Keith C Virtual decoders
US8139100B2 (en) * 2007-07-13 2012-03-20 Lifesize Communications, Inc. Virtual multiway scaler compensation
US8514265B2 (en) * 2008-10-02 2013-08-20 Lifesize Communications, Inc. Systems and methods for selecting videoconferencing endpoints for display in a composite video image
US20100110160A1 (en) * 2008-10-30 2010-05-06 Brandt Matthew K Videoconferencing Community with Live Images
US8643695B2 (en) * 2009-03-04 2014-02-04 Lifesize Communications, Inc. Videoconferencing endpoint extension
US8456510B2 (en) * 2009-03-04 2013-06-04 Lifesize Communications, Inc. Virtual distributed multipoint control unit
US8350891B2 (en) * 2009-11-16 2013-01-08 Lifesize Communications, Inc. Determining a videoconference layout based on numbers of participants
JP5589631B2 (ja) 2010-07-15 2014-09-17 富士通株式会社 音声処理装置、音声処理方法および電話装置
EP3726530A1 (de) 2010-12-24 2020-10-21 Huawei Technologies Co., Ltd. Verfahren und vorrichtung zur adaptiven detektion einer stimmaktivität in einem audioeingangssignal
JP5862349B2 (ja) * 2012-02-16 2016-02-16 株式会社Ｊｖｃケンウッド ノイズ低減装置、音声入力装置、無線通信装置、およびノイズ低減方法
US9280984B2 (en) * 2012-05-14 2016-03-08 Htc Corporation Noise cancellation method
KR101428245B1 (ko) * 2012-12-05 2014-08-07 현대자동차주식회사 음성 인식 장치 및 방법
EP3242295B1 (de) * 2016-05-06 2019-10-23 Nxp B.V. Ein signalprozessor

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4301329A (en) * 1978-01-09 1981-11-17 Nippon Electric Co., Ltd. Speech analysis and synthesis apparatus
US4344150A (en) * 1980-07-10 1982-08-10 Newmont Mining Corporation Coherent noise cancelling filter
US4454609A (en) * 1981-10-05 1984-06-12 Signatron, Inc. Speech intelligibility enhancement
AU555850B2 (en) * 1983-09-26 1986-10-09 Exploration Logging Inc. Noise subtraction filter
US4630305A (en) * 1985-07-01 1986-12-16 Motorola, Inc. Automatic gain selector for a noise suppression system
US4811404A (en) * 1987-10-01 1989-03-07 Motorola, Inc. Noise suppression system
IL84948A0 (en) * 1987-12-25 1988-06-30 D S P Group Israel Ltd Noise reduction system
US4912767A (en) * 1988-03-14 1990-03-27 International Business Machines Corporation Distributed noise cancellation system

Also Published As

Publication number Publication date
CA2034354C (en) 1999-09-14
NO910220L (no) 1991-07-19
EP0438174A2 (de) 1991-07-24
EP0438174A3 (en) 1991-09-11
DE69105760D1 (de) 1995-01-26
DE69105760T2 (de) 1995-04-27
NO306800B1 (no) 1999-12-20
AU633673B2 (en) 1993-02-04
FI104663B (fi) 2000-04-14
HK1010009A1 (en) 1999-06-11
EP0438174B1 (de) 1994-12-14
FI910292A (fi) 1991-07-19
KR950011964B1 (ko) 1995-10-12
EP0637012A2 (de) 1995-02-01
DE69131883D1 (de) 2000-02-03
EP0637012A3 (en) 1995-03-01
AU6868791A (en) 1991-07-25
US6038532A (en) 2000-03-14
NO910220D0 (no) 1991-01-18
KR910015109A (ko) 1991-08-31
CA2034354A1 (en) 1991-07-19
HK184895A (en) 1995-12-15
EP0637012B1 (de) 1999-12-29
FI910292A0 (fi) 1991-01-18

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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