CA2054849A1 - Methode de codage de parametres vocaux pouvant transmettre un parametre spectral avec un nombre de bits reduit - Google Patents
Methode de codage de parametres vocaux pouvant transmettre un parametre spectral avec un nombre de bits reduitInfo
- Publication number
- CA2054849A1 CA2054849A1 CA2054849A CA2054849A CA2054849A1 CA 2054849 A1 CA2054849 A1 CA 2054849A1 CA 2054849 A CA2054849 A CA 2054849A CA 2054849 A CA2054849 A CA 2054849A CA 2054849 A1 CA2054849 A1 CA 2054849A1
- Authority
- CA
- Canada
- Prior art keywords
- vector
- code
- vector candidates
- parameter
- produce
- 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
- 238000000034 method Methods 0.000 title abstract 2
- 238000001228 spectrum Methods 0.000 title abstract 2
- 230000001186 cumulative effect Effects 0.000 abstract 2
- 238000013139 quantization Methods 0.000 abstract 2
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
- G10L19/02—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
- G10L19/032—Quantisation or dequantisation of spectral components
- G10L19/038—Vector quantisation, e.g. TwinVQ audio
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
- H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
- H03M7/3082—Vector coding
-
- 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
- G10L2019/0004—Design or structure of the codebook
- G10L2019/0005—Multi-stage vector quantisation
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Computational Linguistics (AREA)
- Human Computer Interaction (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Theoretical Computer Science (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP297600/1990 | 1990-11-02 | ||
JP02297600A JP3114197B2 (ja) | 1990-11-02 | 1990-11-02 | 音声パラメータ符号化方法 |
JP103267/1991 | 1991-02-26 | ||
JP10326791 | 1991-02-26 | ||
US07/841,726 US5487128A (en) | 1991-02-26 | 1992-02-26 | Speech parameter coding method and appparatus |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2054849A1 true CA2054849A1 (fr) | 1992-05-03 |
CA2054849C CA2054849C (fr) | 1996-03-12 |
Family
ID=27309939
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002054849A Expired - Fee Related CA2054849C (fr) | 1990-11-02 | 1991-11-01 | Methode de codage de parametres vocaux pouvant transmettre un parametre spectral avec un nombre de bits reduit |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0483882B1 (fr) |
CA (1) | CA2054849C (fr) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5327520A (en) * | 1992-06-04 | 1994-07-05 | At&T Bell Laboratories | Method of use of voice message coder/decoder |
DE4236315C1 (de) * | 1992-10-28 | 1994-02-10 | Ant Nachrichtentech | Verfahren zur Sprachcodierung |
JP4005154B2 (ja) * | 1995-10-26 | 2007-11-07 | ソニー株式会社 | 音声復号化方法及び装置 |
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 |
EP2668651A4 (fr) * | 2011-01-28 | 2014-07-30 | Nokia Corp | Codage par combinaison de vecteurs de code |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1323934C (fr) * | 1986-04-15 | 1993-11-02 | Tetsu Taguchi | Appareil de traitement de paroles |
AU592236B2 (en) * | 1986-10-16 | 1990-01-04 | Mitsubishi Denki Kabushiki Kaisha | Amplitude-adapted vector quantizer |
GB2210236B (en) * | 1987-09-24 | 1991-12-18 | Newbridge Networks Corp | Speech processing system |
DE3883519T2 (de) * | 1988-03-08 | 1994-03-17 | Ibm | Verfahren und Einrichtung zur Sprachkodierung mit mehreren Datenraten. |
JP2903533B2 (ja) * | 1989-03-22 | 1999-06-07 | 日本電気株式会社 | 音声符号化方式 |
JPH0365822A (ja) * | 1989-08-04 | 1991-03-20 | Fujitsu Ltd | ベクトル量子化符号器及びベクトル量子化復号器 |
-
1991
- 1991-11-01 CA CA002054849A patent/CA2054849C/fr not_active Expired - Fee Related
- 1991-11-04 EP EP91118741A patent/EP0483882B1/fr not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0483882A3 (en) | 1993-04-14 |
CA2054849C (fr) | 1996-03-12 |
EP0483882B1 (fr) | 1999-06-16 |
EP0483882A2 (fr) | 1992-05-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |