CA2019801A1 - Systeme et appareil de codage de paroles - Google Patents
Systeme et appareil de codage de parolesInfo
- Publication number
- CA2019801A1 CA2019801A1 CA2019801A CA2019801A CA2019801A1 CA 2019801 A1 CA2019801 A1 CA 2019801A1 CA 2019801 A CA2019801 A CA 2019801A CA 2019801 A CA2019801 A CA 2019801A CA 2019801 A1 CA2019801 A1 CA 2019801A1
- Authority
- CA
- Canada
- Prior art keywords
- vector
- speech
- signal
- linear prediction
- enabling
- 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
- 239000013598 vector Substances 0.000 abstract 8
- 238000011156 evaluation Methods 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
- 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
- G10L2019/0004—Design or structure of the codebook
- G10L2019/0005—Multi-stage vector quantisation
-
- 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
- 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)
- 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 (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP01-166180 | 1989-06-28 | ||
| JP16618089 | 1989-06-28 | ||
| JP1168645A JPH0333900A (ja) | 1989-06-30 | 1989-06-30 | 音声符号化方式 |
| JP01-168645 | 1989-06-30 | ||
| JP1195302A JPH03101800A (ja) | 1989-06-28 | 1989-07-27 | 音声符合化方式 |
| JP01-195302 | 1989-07-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2019801A1 true CA2019801A1 (fr) | 1990-12-28 |
| CA2019801C CA2019801C (fr) | 1994-05-31 |
Family
ID=27322637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002019801A Expired - Lifetime CA2019801C (fr) | 1989-06-28 | 1990-06-26 | Systeme et appareil de codage de paroles |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0405548B1 (fr) |
| CA (1) | CA2019801C (fr) |
| DE (1) | DE69014156T2 (fr) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI98104C (fi) * | 1991-05-20 | 1997-04-10 | Nokia Mobile Phones Ltd | Menetelmä herätevektorin generoimiseksi ja digitaalinen puhekooderi |
| SG43128A1 (en) * | 1993-06-10 | 1997-10-17 | Oki Electric Ind Co Ltd | Code excitation linear predictive (celp) encoder and decoder |
| EP1686563A3 (fr) | 1997-12-24 | 2007-02-07 | Mitsubishi Denki Kabushiki Kaisha | Procédé et appareil de décodage de parole |
| PL2165328T3 (pl) | 2007-06-11 | 2018-06-29 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Kodowanie i dekodowanie sygnału audio zawierającego część impulsową i część stacjonarną |
-
1990
- 1990-06-26 CA CA002019801A patent/CA2019801C/fr not_active Expired - Lifetime
- 1990-06-28 DE DE69014156T patent/DE69014156T2/de not_active Expired - Lifetime
- 1990-06-28 EP EP90112351A patent/EP0405548B1/fr not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE69014156D1 (de) | 1994-12-22 |
| CA2019801C (fr) | 1994-05-31 |
| DE69014156T2 (de) | 1995-05-11 |
| EP0405548A2 (fr) | 1991-01-02 |
| EP0405548A3 (en) | 1991-08-28 |
| EP0405548B1 (fr) | 1994-11-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry | ||
| MKEX | Expiry |
Effective date: 20100626 |