DE4494736T1 - Verfahren und Vorrichtung zum Vermindern einer ungewünschten Charakteristik eines spektralen Schätzwerts eines Rauchsignals zwischen dem Auftreten von Sprachsignalen - Google Patents
Verfahren und Vorrichtung zum Vermindern einer ungewünschten Charakteristik eines spektralen Schätzwerts eines Rauchsignals zwischen dem Auftreten von SprachsignalenInfo
- Publication number
- DE4494736T1 DE4494736T1 DE4494736T DE4494736T DE4494736T1 DE 4494736 T1 DE4494736 T1 DE 4494736T1 DE 4494736 T DE4494736 T DE 4494736T DE 4494736 T DE4494736 T DE 4494736T DE 4494736 T1 DE4494736 T1 DE 4494736T1
- Authority
- DE
- Germany
- Prior art keywords
- occurrence
- reducing
- speech signals
- smoke signal
- spectral estimate
- 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.)
- Pending
Links
- 239000000779 smoke Substances 0.000 title 1
- 230000003595 spectral effect Effects 0.000 title 1
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
- G10L2021/02168—Noise filtering characterised by the method used for estimating noise the estimation exclusively taking place during speech pauses
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Acoustics & Sound (AREA)
- Computational Linguistics (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- Quality & Reliability (AREA)
- Signal Processing (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Noise Elimination (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/085,693 US5710862A (en) | 1993-06-30 | 1993-06-30 | Method and apparatus for reducing an undesirable characteristic of a spectral estimate of a noise signal between occurrences of voice signals |
PCT/US1994/005724 WO1995001634A1 (en) | 1993-06-30 | 1994-04-23 | Method and apparatus for reducing an undesirable characteristic of a spectral estimate of a noise signal between occurrences of voice signals |
Publications (1)
Publication Number | Publication Date |
---|---|
DE4494736T1 true DE4494736T1 (de) | 1995-09-21 |
Family
ID=22193332
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE4494736T Pending DE4494736T1 (de) | 1993-06-30 | 1994-04-23 | Verfahren und Vorrichtung zum Vermindern einer ungewünschten Charakteristik eines spektralen Schätzwerts eines Rauchsignals zwischen dem Auftreten von Sprachsignalen |
DE4494736A Expired - Fee Related DE4494736C2 (de) | 1993-06-30 | 1994-04-23 | Verfahren zur Spektralanalyse eines Eingangssignals sowie Spektral-Analysator zum Ausführen einer Spektralanalyse |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE4494736A Expired - Fee Related DE4494736C2 (de) | 1993-06-30 | 1994-04-23 | Verfahren zur Spektralanalyse eines Eingangssignals sowie Spektral-Analysator zum Ausführen einer Spektralanalyse |
Country Status (9)
Country | Link |
---|---|
US (1) | US5710862A (de) |
JP (1) | JP3640393B2 (de) |
KR (1) | KR0138806B1 (de) |
CN (1) | CN1051393C (de) |
AU (1) | AU666446B2 (de) |
CA (1) | CA2141316C (de) |
DE (2) | DE4494736T1 (de) |
GB (1) | GB2284966B (de) |
WO (1) | WO1995001634A1 (de) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5802109A (en) * | 1996-03-28 | 1998-09-01 | Nec Corporation | Speech encoding communication system |
SE9700772D0 (sv) * | 1997-03-03 | 1997-03-03 | Ericsson Telefon Ab L M | A high resolution post processing method for a speech decoder |
US5946649A (en) * | 1997-04-16 | 1999-08-31 | Technology Research Association Of Medical Welfare Apparatus | Esophageal speech injection noise detection and rejection |
SE515674C2 (sv) * | 1997-12-05 | 2001-09-24 | Ericsson Telefon Ab L M | Apparat och metod för brusreducering |
US6157908A (en) * | 1998-01-27 | 2000-12-05 | Hm Electronics, Inc. | Order point communication system and method |
US6240381B1 (en) * | 1998-02-17 | 2001-05-29 | Fonix Corporation | Apparatus and methods for detecting onset of a signal |
CN1258368A (zh) * | 1998-03-30 | 2000-06-28 | 三菱电机株式会社 | 噪声衰减设备以及噪声衰减方法 |
US6683919B1 (en) | 1999-06-16 | 2004-01-27 | National Semiconductor Corporation | Method and apparatus for noise bandwidth reduction in wireless communication signal reception |
EP1421682A2 (de) | 2001-08-23 | 2004-05-26 | Koninklijke Philips Electronics N.V. | Vorrichtung zur verarbeitung von audiosignalen |
GB2381978B (en) * | 2001-11-12 | 2005-09-21 | Thales Res Ltd | Signal processing method and apparatus |
US7895036B2 (en) * | 2003-02-21 | 2011-02-22 | Qnx Software Systems Co. | System for suppressing wind noise |
JP5597575B2 (ja) * | 2011-02-23 | 2014-10-01 | 国立大学法人 琉球大学 | 通信装置 |
JP5654955B2 (ja) * | 2011-07-01 | 2015-01-14 | クラリオン株式会社 | 直接音抽出装置および残響音抽出装置 |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2451680A1 (fr) * | 1979-03-12 | 1980-10-10 | Soumagne Joel | Discriminateur parole/silence pour interpolation de la parole |
NL188189C (nl) * | 1979-04-04 | 1992-04-16 | Philips Nv | Werkwijze ter bepaling van stuursignalen voor besturing van polen van een louter-polen filter in een spraaksynthese-inrichting. |
US4630300A (en) * | 1983-10-05 | 1986-12-16 | United States Of America As Represented By The Secretary Of The Navy | Front-end processor for narrowband transmission |
US4700361A (en) * | 1983-10-07 | 1987-10-13 | Dolby Laboratories Licensing Corporation | Spectral emphasis and de-emphasis |
JPS627097A (ja) * | 1985-07-03 | 1987-01-14 | 日本電気株式会社 | 音響雑音除去装置 |
US4726037A (en) * | 1986-03-26 | 1988-02-16 | American Telephone And Telegraph Company, At&T Bell Laboratories | Predictive communication system filtering arrangement |
US4759071A (en) * | 1986-08-14 | 1988-07-19 | Richards Medical Company | Automatic noise eliminator for hearing aids |
IL84948A0 (en) * | 1987-12-25 | 1988-06-30 | D S P Group Israel Ltd | Noise reduction system |
JP3074680B2 (ja) * | 1988-04-13 | 2000-08-07 | ケイディディ株式会社 | 音声復号器のポスト雑音整形フィルタ |
US5007094A (en) * | 1989-04-07 | 1991-04-09 | Gte Products Corporation | Multipulse excited pole-zero filtering approach for noise reduction |
JP2797616B2 (ja) * | 1990-03-16 | 1998-09-17 | 松下電器産業株式会社 | 雑音抑圧装置 |
CA2042926C (en) * | 1990-05-22 | 1997-02-25 | Ryuhei Fujiwara | Speech recognition method with noise reduction and a system therefor |
EP0459364B1 (de) * | 1990-05-28 | 1996-08-14 | Matsushita Electric Industrial Co., Ltd. | Geräuschsignalvorhersagevorrichtung |
CA2056110C (en) * | 1991-03-27 | 1997-02-04 | Arnold I. Klayman | Public address intelligibility system |
GB9217313D0 (en) * | 1992-08-14 | 1992-09-30 | British Broadcasting Corp | Method and apparatus for attenuating an unwnated signal in a mix of signals |
US5479560A (en) * | 1992-10-30 | 1995-12-26 | Technology Research Association Of Medical And Welfare Apparatus | Formant detecting device and speech processing apparatus |
JP3343965B2 (ja) * | 1992-10-31 | 2002-11-11 | ソニー株式会社 | 音声符号化方法及び復号化方法 |
JPH08506427A (ja) * | 1993-02-12 | 1996-07-09 | ブリテイッシュ・テレコミュニケーションズ・パブリック・リミテッド・カンパニー | 雑音減少 |
-
1993
- 1993-06-30 US US08/085,693 patent/US5710862A/en not_active Expired - Lifetime
-
1994
- 1994-04-23 JP JP50347595A patent/JP3640393B2/ja not_active Expired - Fee Related
- 1994-04-23 GB GB9503797A patent/GB2284966B/en not_active Expired - Fee Related
- 1994-04-23 DE DE4494736T patent/DE4494736T1/de active Pending
- 1994-04-23 CA CA002141316A patent/CA2141316C/en not_active Expired - Fee Related
- 1994-04-23 AU AU70422/94A patent/AU666446B2/en not_active Ceased
- 1994-04-23 CN CN94190448A patent/CN1051393C/zh not_active Expired - Fee Related
- 1994-04-23 WO PCT/US1994/005724 patent/WO1995001634A1/en active Application Filing
- 1994-04-23 DE DE4494736A patent/DE4494736C2/de not_active Expired - Fee Related
-
1995
- 1995-02-23 KR KR95700686A patent/KR0138806B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
GB9503797D0 (en) | 1995-04-12 |
CA2141316C (en) | 1999-04-20 |
WO1995001634A1 (en) | 1995-01-12 |
CN1111465A (zh) | 1995-11-08 |
JPH08502604A (ja) | 1996-03-19 |
KR950703191A (ko) | 1995-08-23 |
GB2284966A (en) | 1995-06-21 |
JP3640393B2 (ja) | 2005-04-20 |
CN1051393C (zh) | 2000-04-12 |
GB2284966B (en) | 1997-12-10 |
AU7042294A (en) | 1995-01-24 |
KR0138806B1 (en) | 1998-06-15 |
CA2141316A1 (en) | 1995-01-12 |
DE4494736C2 (de) | 1998-03-12 |
AU666446B2 (en) | 1996-02-08 |
US5710862A (en) | 1998-01-20 |
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