IL94119A0 - Digital speech coder - Google Patents
Digital speech coderInfo
- Publication number
- IL94119A0 IL94119A0 IL94119A IL9411990A IL94119A0 IL 94119 A0 IL94119 A0 IL 94119A0 IL 94119 A IL94119 A IL 94119A IL 9411990 A IL9411990 A IL 9411990A IL 94119 A0 IL94119 A0 IL 94119A0
- Authority
- IL
- Israel
- Prior art keywords
- speech coder
- digital speech
- digital
- coder
- speech
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L13/00—Speech synthesis; Text to speech systems
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US37054189A | 1989-06-23 | 1989-06-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IL94119A0 true IL94119A0 (en) | 1991-01-31 |
| IL94119A IL94119A (en) | 1996-06-18 |
Family
ID=23460115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IL9411990A IL94119A (en) | 1989-06-23 | 1990-04-18 | Digital speech coder |
Country Status (10)
| Country | Link |
|---|---|
| EP (1) | EP0484339B1 (en) |
| KR (1) | KR950003557B1 (en) |
| CN (1) | CN1023160C (en) |
| AU (1) | AU638462B2 (en) |
| BR (1) | BR9007467A (en) |
| CA (1) | CA2060310C (en) |
| DE (1) | DE69032026T2 (en) |
| IL (1) | IL94119A (en) |
| NZ (1) | NZ234180A (en) |
| WO (1) | WO1991001545A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0451199A (en) * | 1990-06-18 | 1992-02-19 | Fujitsu Ltd | Sound encoding/decoding system |
| JPH0451200A (en) * | 1990-06-18 | 1992-02-19 | Fujitsu Ltd | Sound encoding system |
| IT1241358B (en) * | 1990-12-20 | 1994-01-10 | Sip | VOICE SIGNAL CODING SYSTEM WITH NESTED SUBCODE |
| JP2776050B2 (en) * | 1991-02-26 | 1998-07-16 | 日本電気株式会社 | Audio coding method |
| DE4315315A1 (en) * | 1993-05-07 | 1994-11-10 | Ant Nachrichtentech | Method for vector quantization, especially of speech signals |
| SG43128A1 (en) * | 1993-06-10 | 1997-10-17 | Oki Electric Ind Co Ltd | Code excitation linear predictive (celp) encoder and decoder |
| JP3224955B2 (en) * | 1994-05-27 | 2001-11-05 | 株式会社東芝 | Vector quantization apparatus and vector quantization method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1252568A (en) * | 1984-12-24 | 1989-04-11 | Kazunori Ozawa | Low bit-rate pattern encoding and decoding capable of reducing an information transmission rate |
| US4868867A (en) * | 1987-04-06 | 1989-09-19 | Voicecraft Inc. | Vector excitation speech or audio coder for transmission or storage |
| US4899385A (en) * | 1987-06-26 | 1990-02-06 | American Telephone And Telegraph Company | Code excited linear predictive vocoder |
-
1990
- 1990-04-18 IL IL9411990A patent/IL94119A/en not_active IP Right Cessation
- 1990-05-02 BR BR909007467A patent/BR9007467A/en not_active IP Right Cessation
- 1990-05-02 WO PCT/US1990/002469 patent/WO1991001545A1/en active IP Right Grant
- 1990-05-02 KR KR1019910701947A patent/KR950003557B1/en not_active IP Right Cessation
- 1990-05-02 EP EP90908908A patent/EP0484339B1/en not_active Expired - Lifetime
- 1990-05-02 CA CA002060310A patent/CA2060310C/en not_active Expired - Lifetime
- 1990-05-02 DE DE69032026T patent/DE69032026T2/en not_active Expired - Lifetime
- 1990-05-02 AU AU57359/90A patent/AU638462B2/en not_active Expired
- 1990-06-19 CN CN90103020A patent/CN1023160C/en not_active Expired - Lifetime
- 1990-06-21 NZ NZ234180A patent/NZ234180A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| AU5735990A (en) | 1991-02-22 |
| EP0484339A4 (en) | 1993-05-05 |
| EP0484339A1 (en) | 1992-05-13 |
| CA2060310C (en) | 2001-07-17 |
| IL94119A (en) | 1996-06-18 |
| CN1048278A (en) | 1991-01-02 |
| AU638462B2 (en) | 1993-07-01 |
| DE69032026D1 (en) | 1998-03-12 |
| EP0484339B1 (en) | 1998-02-04 |
| DE69032026T2 (en) | 1998-09-17 |
| BR9007467A (en) | 1992-06-16 |
| NZ234180A (en) | 1993-11-25 |
| KR950003557B1 (en) | 1995-04-14 |
| CN1023160C (en) | 1993-12-15 |
| WO1991001545A1 (en) | 1991-02-07 |
| CA2060310A1 (en) | 1990-12-24 |
| KR920702787A (en) | 1992-10-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0443548A3 (en) | Speech coder | |
| EP0515138A3 (en) | Digital speech coder | |
| EP0422232A4 (en) | Voice encoder | |
| EP0424121A3 (en) | Speech coding system | |
| AU567395B2 (en) | Digital speech coder | |
| HK128896A (en) | Speech coding | |
| GB9018790D0 (en) | Digital dialog editor | |
| IL94826A (en) | Speech detector | |
| EP0415163A3 (en) | Digital speech coder having improved long term lag parameter determination | |
| IL95753A0 (en) | Digital speech coder | |
| EP0431195A4 (en) | Encoder | |
| GB8621932D0 (en) | Speech coding | |
| GB2204766B (en) | Speech encoder | |
| EP0426125A3 (en) | Encoder | |
| IL94119A0 (en) | Digital speech coder | |
| GB2238444B (en) | Digital coder | |
| GB8722002D0 (en) | Multi-pulse speech coding | |
| GB2237484B (en) | Speech codec arrangement | |
| GB9002282D0 (en) | Encoding speech | |
| GB2225516B (en) | Speech codec arrangement | |
| GB8703354D0 (en) | Coder | |
| EP0419141A3 (en) | Bit-rate reduction | |
| HK130196A (en) | Speech coding | |
| GB2137054B (en) | Speech encoder | |
| GB9008497D0 (en) | Speech aid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FF | Patent granted | ||
| KB | Patent renewed | ||
| KB | Patent renewed | ||
| KB | Patent renewed | ||
| KB | Patent renewed | ||
| KB | Patent renewed | ||
| EXP | Patent expired |