DE69802431T2 - Verfahren und vorrichtung zur verbesserung eines digitalen sprachsignals - Google Patents
Verfahren und vorrichtung zur verbesserung eines digitalen sprachsignalsInfo
- Publication number
- DE69802431T2 DE69802431T2 DE69802431T DE69802431T DE69802431T2 DE 69802431 T2 DE69802431 T2 DE 69802431T2 DE 69802431 T DE69802431 T DE 69802431T DE 69802431 T DE69802431 T DE 69802431T DE 69802431 T2 DE69802431 T2 DE 69802431T2
- Authority
- DE
- Germany
- Prior art keywords
- improving
- voice signal
- digital voice
- digital
- signal
- 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
- 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
- G10L21/0316—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude
- G10L21/0364—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude for improving intelligibility
-
- 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
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
- G10L19/0212—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders using orthogonal transformation
-
- 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
-
- 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
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/78—Detection of presence or absence of voice 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
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/93—Discriminating between voiced and unvoiced parts of speech signals
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)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9711641A FR2768545B1 (fr) | 1997-09-18 | 1997-09-18 | Procede de conditionnement d'un signal de parole numerique |
PCT/FR1998/001978 WO1999014744A1 (fr) | 1997-09-18 | 1998-09-16 | Procede de conditionnement d'un signal de parole numerique |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69802431D1 DE69802431D1 (de) | 2001-12-13 |
DE69802431T2 true DE69802431T2 (de) | 2002-07-18 |
Family
ID=9511228
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69802431T Expired - Fee Related DE69802431T2 (de) | 1997-09-18 | 1998-09-16 | Verfahren und vorrichtung zur verbesserung eines digitalen sprachsignals |
Country Status (7)
Country | Link |
---|---|
US (1) | US6775650B1 (de) |
EP (1) | EP1021805B1 (de) |
AU (1) | AU9168798A (de) |
CA (1) | CA2304013A1 (de) |
DE (1) | DE69802431T2 (de) |
FR (1) | FR2768545B1 (de) |
WO (1) | WO1999014744A1 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1278185A3 (de) * | 2001-07-13 | 2005-02-09 | Alcatel | Verfahren zur Verbesserung von Geräuschunterdrückung bei der Sprachübertragung |
US7103539B2 (en) * | 2001-11-08 | 2006-09-05 | Global Ip Sound Europe Ab | Enhanced coded speech |
WO2004042722A1 (en) * | 2002-11-07 | 2004-05-21 | Samsung Electronics Co., Ltd. | Mpeg audio encoding method and apparatus |
US9495971B2 (en) * | 2007-08-27 | 2016-11-15 | Telefonaktiebolaget Lm Ericsson (Publ) | Transient detector and method for supporting encoding of an audio signal |
US8468014B2 (en) * | 2007-11-02 | 2013-06-18 | Soundhound, Inc. | Voicing detection modules in a system for automatic transcription of sung or hummed melodies |
US8924200B2 (en) * | 2010-10-15 | 2014-12-30 | Motorola Mobility Llc | Audio signal bandwidth extension in CELP-based speech coder |
EP2734997A4 (de) * | 2011-07-20 | 2015-05-20 | Tata Consultancy Services Ltd | Verfahren und system zur erkennung der grenzen von koartikulationseinheiten aus isolierter sprache |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0287741B1 (de) * | 1987-04-22 | 1993-03-31 | International Business Machines Corporation | Verfahren und Einrichtung zur Veränderung von Sprachgeschwindigkeit |
US5384891A (en) * | 1988-09-28 | 1995-01-24 | Hitachi, Ltd. | Vector quantizing apparatus and speech analysis-synthesis system using the apparatus |
AU633673B2 (en) | 1990-01-18 | 1993-02-04 | Matsushita Electric Industrial Co., Ltd. | Signal processing device |
EP0459362B1 (de) | 1990-05-28 | 1997-01-08 | Matsushita Electric Industrial Co., Ltd. | Sprachsignalverarbeitungsvorrichtung |
US5400434A (en) * | 1990-09-04 | 1995-03-21 | Matsushita Electric Industrial Co., Ltd. | Voice source for synthetic speech system |
US5226084A (en) * | 1990-12-05 | 1993-07-06 | Digital Voice Systems, Inc. | Methods for speech quantization and error correction |
FR2679689B1 (fr) * | 1991-07-26 | 1994-02-25 | Etat Francais | Procede de synthese de sons. |
US5469087A (en) | 1992-06-25 | 1995-11-21 | Noise Cancellation Technologies, Inc. | Control system using harmonic filters |
US5787398A (en) * | 1994-03-18 | 1998-07-28 | British Telecommunications Plc | Apparatus for synthesizing speech by varying pitch |
JP3528258B2 (ja) * | 1994-08-23 | 2004-05-17 | ソニー株式会社 | 符号化音声信号の復号化方法及び装置 |
US5641927A (en) * | 1995-04-18 | 1997-06-24 | Texas Instruments Incorporated | Autokeying for musical accompaniment playing apparatus |
US5555190A (en) | 1995-07-12 | 1996-09-10 | Micro Motion, Inc. | Method and apparatus for adaptive line enhancement in Coriolis mass flow meter measurement |
BE1010336A3 (fr) * | 1996-06-10 | 1998-06-02 | Faculte Polytechnique De Mons | Procede de synthese de son. |
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 |
WO1999010719A1 (en) * | 1997-08-29 | 1999-03-04 | The Regents Of The University Of California | Method and apparatus for hybrid coding of speech at 4kbps |
US6064955A (en) * | 1998-04-13 | 2000-05-16 | Motorola | Low complexity MBE synthesizer for very low bit rate voice messaging |
-
1997
- 1997-09-18 FR FR9711641A patent/FR2768545B1/fr not_active Expired - Fee Related
-
1998
- 1998-09-16 AU AU91687/98A patent/AU9168798A/en not_active Abandoned
- 1998-09-16 US US09/509,146 patent/US6775650B1/en not_active Expired - Lifetime
- 1998-09-16 CA CA002304013A patent/CA2304013A1/fr not_active Abandoned
- 1998-09-16 WO PCT/FR1998/001978 patent/WO1999014744A1/fr active IP Right Grant
- 1998-09-16 EP EP98943997A patent/EP1021805B1/de not_active Expired - Lifetime
- 1998-09-16 DE DE69802431T patent/DE69802431T2/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US6775650B1 (en) | 2004-08-10 |
DE69802431D1 (de) | 2001-12-13 |
EP1021805B1 (de) | 2001-11-07 |
FR2768545B1 (fr) | 2000-07-13 |
CA2304013A1 (fr) | 1999-03-25 |
FR2768545A1 (fr) | 1999-03-19 |
AU9168798A (en) | 1999-04-05 |
WO1999014744A1 (fr) | 1999-03-25 |
EP1021805A1 (de) | 2000-07-26 |
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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 |