DE69131883D1 - Vorrichtung zur Rauschreduzierung - Google Patents
Vorrichtung zur RauschreduzierungInfo
- Publication number
- DE69131883D1 DE69131883D1 DE69131883T DE69131883T DE69131883D1 DE 69131883 D1 DE69131883 D1 DE 69131883D1 DE 69131883 T DE69131883 T DE 69131883T DE 69131883 T DE69131883 T DE 69131883T DE 69131883 D1 DE69131883 D1 DE 69131883D1
- 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
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
- G10L15/00—Speech recognition
- G10L15/02—Feature extraction for speech recognition; Selection of recognition unit
-
- 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
-
- 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)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Computational Linguistics (AREA)
- Quality & Reliability (AREA)
- Signal Processing (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Noise Elimination (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Electrophonic Musical Instruments (AREA)
- Radar Systems Or Details Thereof (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
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 true DE69131883D1 (de) | 2000-02-03 |
DE69131883T2 DE69131883T2 (de) | 2000-08-10 |
Family
ID=27454980
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69105760T Expired - Fee Related DE69105760T2 (de) | 1990-01-18 | 1991-01-18 | Einrichtung zur Signalverarbeitung. |
DE69131883T Expired - Fee Related DE69131883T2 (de) | 1990-01-18 | 1991-01-18 | Vorrichtung zur Rauschreduzierung |
Family Applications Before (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) | EP0637012B1 (de) |
KR (1) | KR950011964B1 (de) |
AU (1) | AU633673B2 (de) |
CA (1) | CA2034354C (de) |
DE (2) | DE69105760T2 (de) |
FI (1) | FI104663B (de) |
HK (2) | HK184895A (de) |
NO (1) | NO306800B1 (de) |
Families Citing this family (45)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0763813B1 (de) * | 1990-05-28 | 2001-07-11 | Matsushita Electric Industrial Co., Ltd. | Vorrichtung zur Sprachsignalverarbeitung für die Bestimmung eines Sprachsignals in einem verrauschten Sprachsignal |
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 |
EP1326479B2 (de) | 1997-04-16 | 2018-05-23 | Emma Mixed Signal C.V. | Verfahren und Vorrichtung zur Rauschverminderung, insbesondere bei Hörhilfegeräten |
FR2768545B1 (fr) | 1997-09-18 | 2000-07-13 | Matra Communication | Procede de conditionnement d'un signal de parole numerique |
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 |
FR2768544B1 (fr) | 1997-09-18 | 1999-11-19 | Matra Communication | Procede de detection d'activite vocale |
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 |
EP1376539B8 (de) * | 2001-03-28 | 2010-12-15 | Mitsubishi Denki Kabushiki Kaisha | 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 |
US8319814B2 (en) * | 2007-06-22 | 2012-11-27 | Lifesize Communications, Inc. | Video conferencing system which allows endpoints to perform continuous presence layout selection |
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 |
US8456510B2 (en) * | 2009-03-04 | 2013-06-04 | Lifesize Communications, Inc. | Virtual distributed multipoint control unit |
US8643695B2 (en) * | 2009-03-04 | 2014-02-04 | Lifesize Communications, Inc. | Videoconferencing endpoint extension |
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 |
ES2860986T3 (es) * | 2010-12-24 | 2021-10-05 | Huawei Tech Co Ltd | Método y aparato para detectar adaptivamente una actividad de voz en una señal de audio de entrada |
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)
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 |
WO1985001586A1 (en) * | 1983-09-26 | 1985-04-11 | 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 |
-
1991
- 1991-01-07 AU AU68687/91A patent/AU633673B2/en not_active Ceased
- 1991-01-16 KR KR1019910000600A patent/KR950011964B1/ko not_active IP Right Cessation
- 1991-01-17 CA CA002034354A patent/CA2034354C/en not_active Expired - Fee Related
- 1991-01-18 EP EP94108160A patent/EP0637012B1/de not_active Expired - Lifetime
- 1991-01-18 FI FI910292A patent/FI104663B/fi active
- 1991-01-18 DE DE69105760T patent/DE69105760T2/de not_active Expired - Fee Related
- 1991-01-18 DE DE69131883T patent/DE69131883T2/de not_active Expired - Fee Related
- 1991-01-18 NO NO910220A patent/NO306800B1/no unknown
- 1991-01-18 EP EP91100591A patent/EP0438174B1/de not_active Expired - Lifetime
-
1993
- 1993-07-23 US US08/095,179 patent/US6038532A/en not_active Expired - Fee Related
-
1995
- 1995-12-07 HK HK184895A patent/HK184895A/xx not_active IP Right Cessation
-
1998
- 1998-09-10 HK HK98110578A patent/HK1010009A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
FI104663B (fi) | 2000-04-14 |
EP0637012A3 (en) | 1995-03-01 |
EP0637012B1 (de) | 1999-12-29 |
FI910292A (fi) | 1991-07-19 |
DE69131883T2 (de) | 2000-08-10 |
EP0438174B1 (de) | 1994-12-14 |
KR910015109A (ko) | 1991-08-31 |
DE69105760D1 (de) | 1995-01-26 |
AU633673B2 (en) | 1993-02-04 |
CA2034354A1 (en) | 1991-07-19 |
NO910220D0 (no) | 1991-01-18 |
NO910220L (no) | 1991-07-19 |
HK1010009A1 (en) | 1999-06-11 |
KR950011964B1 (ko) | 1995-10-12 |
HK184895A (en) | 1995-12-15 |
FI910292A0 (fi) | 1991-01-18 |
US6038532A (en) | 2000-03-14 |
EP0438174A2 (de) | 1991-07-24 |
CA2034354C (en) | 1999-09-14 |
AU6868791A (en) | 1991-07-25 |
EP0637012A2 (de) | 1995-02-01 |
DE69105760T2 (de) | 1995-04-27 |
NO306800B1 (no) | 1999-12-20 |
EP0438174A3 (en) | 1991-09-11 |
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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 |