CA2044750A1 - Systeme de codage et de decodage de paroles - Google Patents
Systeme de codage et de decodage de parolesInfo
- Publication number
- CA2044750A1 CA2044750A1 CA2044750A CA2044750A CA2044750A1 CA 2044750 A1 CA2044750 A1 CA 2044750A1 CA 2044750 A CA2044750 A CA 2044750A CA 2044750 A CA2044750 A CA 2044750A CA 2044750 A1 CA2044750 A1 CA 2044750A1
- Authority
- CA
- Canada
- Prior art keywords
- vector
- optimum
- decoding system
- coding
- speech coding
- 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.)
- Granted
Links
- 230000003044 adaptive effect Effects 0.000 abstract 1
- 230000009466 transformation Effects 0.000 abstract 1
- 230000001131 transforming effect Effects 0.000 abstract 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
- 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
- G10L19/04—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 predictive techniques
- G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
- G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] vocoders
-
- 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
- G10L19/04—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 predictive techniques
- G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
- G10L19/083—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being an excitation gain
-
- 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
- G10L2019/0001—Codebooks
- G10L2019/0003—Backward prediction of gain
-
- 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
- G10L2019/0001—Codebooks
- G10L2019/0011—Long term prediction filters, i.e. pitch estimation
-
- 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
- G10L2019/0001—Codebooks
- G10L2019/0013—Codebook search algorithms
-
- 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
- G10L25/27—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the analysis technique
Landscapes
- Engineering & Computer Science (AREA)
- Computational Linguistics (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)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP02-161041 | 1990-06-18 | ||
JP2161041A JPH0451199A (ja) | 1990-06-18 | 1990-06-18 | 音声符号化・復号化方式 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2044750A1 true CA2044750A1 (fr) | 1991-12-19 |
CA2044750C CA2044750C (fr) | 1996-03-05 |
Family
ID=15727475
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002044750A Expired - Fee Related CA2044750C (fr) | 1990-06-18 | 1991-06-17 | Systeme de codage et de decodage de paroles |
Country Status (5)
Country | Link |
---|---|
US (1) | US5799131A (fr) |
EP (1) | EP0462559B1 (fr) |
JP (1) | JPH0451199A (fr) |
CA (1) | CA2044750C (fr) |
DE (1) | DE69126062T2 (fr) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2776050B2 (ja) * | 1991-02-26 | 1998-07-16 | 日本電気株式会社 | 音声符号化方式 |
FI98104C (fi) * | 1991-05-20 | 1997-04-10 | Nokia Mobile Phones Ltd | Menetelmä herätevektorin generoimiseksi ja digitaalinen puhekooderi |
US5396576A (en) * | 1991-05-22 | 1995-03-07 | Nippon Telegraph And Telephone Corporation | Speech coding and decoding methods using adaptive and random code books |
FR2700632B1 (fr) * | 1993-01-21 | 1995-03-24 | France Telecom | Système de codage-décodage prédictif d'un signal numérique de parole par transformée adaptative à codes imbriqués. |
JP2746039B2 (ja) * | 1993-01-22 | 1998-04-28 | 日本電気株式会社 | 音声符号化方式 |
EP1355298B1 (fr) * | 1993-06-10 | 2007-02-21 | Oki Electric Industry Company, Limited | Codeur-décodeur prédictif linéaire à excitation par codes |
WO1994029965A1 (fr) * | 1993-06-10 | 1994-12-22 | Oki Electric Industry Co., Ltd. | Codeur-decodeur predictif lineaire a excitation par codes |
EP0654909A4 (fr) * | 1993-06-10 | 1997-09-10 | Oki Electric Ind Co Ltd | Codeur-decodeur predictif lineaire a excitation par codes. |
JP3321976B2 (ja) * | 1994-04-01 | 2002-09-09 | 富士通株式会社 | 信号処理装置および信号処理方法 |
JP3328080B2 (ja) * | 1994-11-22 | 2002-09-24 | 沖電気工業株式会社 | コード励振線形予測復号器 |
US5751903A (en) * | 1994-12-19 | 1998-05-12 | Hughes Electronics | Low rate multi-mode CELP codec that encodes line SPECTRAL frequencies utilizing an offset |
JP3707154B2 (ja) * | 1996-09-24 | 2005-10-19 | ソニー株式会社 | 音声符号化方法及び装置 |
TW408298B (en) * | 1997-08-28 | 2000-10-11 | Texas Instruments Inc | Improved method for switched-predictive quantization |
GB2338630B (en) * | 1998-06-20 | 2000-07-26 | Motorola Ltd | Speech decoder and method of operation |
US7072832B1 (en) * | 1998-08-24 | 2006-07-04 | Mindspeed Technologies, Inc. | System for speech encoding having an adaptive encoding arrangement |
US6959274B1 (en) * | 1999-09-22 | 2005-10-25 | Mindspeed Technologies, Inc. | Fixed rate speech compression system and method |
CZ304212B6 (cs) * | 2000-11-27 | 2014-01-08 | Nippon Telegraph And Telephone Corporation | Způsob kódování a dekódování akustického parametru, kódovací a dekódovací zařízení akustického parametru, a program pro provedení způsobu kódování a dekódování akustického parametru |
US7778826B2 (en) * | 2005-01-13 | 2010-08-17 | Intel Corporation | Beamforming codebook generation system and associated methods |
DK3319087T3 (da) | 2011-03-10 | 2019-11-04 | Ericsson Telefon Ab L M | Fyldning af ikke-kodede subvektorer i transformationskodede audiosignaler |
CN113948085B (zh) * | 2021-12-22 | 2022-03-25 | 中国科学院自动化研究所 | 语音识别方法、系统、电子设备和存储介质 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1252568A (fr) * | 1984-12-24 | 1989-04-11 | Kazunori Ozawa | Codeur et decodeur de signaux a faible debit binaire pouvant reduire la vitesse de transmission de l'information |
US4899385A (en) * | 1987-06-26 | 1990-02-06 | American Telephone And Telegraph Company | Code excited linear predictive vocoder |
US4896361A (en) * | 1988-01-07 | 1990-01-23 | Motorola, Inc. | Digital speech coder having improved vector excitation source |
IL94119A (en) * | 1989-06-23 | 1996-06-18 | Motorola Inc | Digital voice recorder |
-
1990
- 1990-06-18 JP JP2161041A patent/JPH0451199A/ja active Pending
-
1991
- 1991-06-17 CA CA002044750A patent/CA2044750C/fr not_active Expired - Fee Related
- 1991-06-18 EP EP91109947A patent/EP0462559B1/fr not_active Expired - Lifetime
- 1991-06-18 DE DE69126062T patent/DE69126062T2/de not_active Expired - Fee Related
-
1997
- 1997-03-03 US US08/811,451 patent/US5799131A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE69126062T2 (de) | 1997-10-09 |
DE69126062D1 (de) | 1997-06-19 |
JPH0451199A (ja) | 1992-02-19 |
US5799131A (en) | 1998-08-25 |
EP0462559A2 (fr) | 1991-12-27 |
EP0462559A3 (en) | 1992-08-05 |
CA2044750C (fr) | 1996-03-05 |
EP0462559B1 (fr) | 1997-05-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed | ||
MKLA | Lapsed |
Effective date: 20060619 |