HK1003346A1 - Double mode long term prediction in speech coding - Google Patents
Double mode long term prediction in speech coding Download PDFInfo
- Publication number
- HK1003346A1 HK1003346A1 HK98102397A HK98102397A HK1003346A1 HK 1003346 A1 HK1003346 A1 HK 1003346A1 HK 98102397 A HK98102397 A HK 98102397A HK 98102397 A HK98102397 A HK 98102397A HK 1003346 A1 HK1003346 A1 HK 1003346A1
- Authority
- HK
- Hong Kong
- Prior art keywords
- vector
- long term
- term predictor
- estimates
- code book
- Prior art date
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
- 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
- G10L2019/0004—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
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)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE9200217 | 1992-01-27 | ||
| SE9200217A SE469764B (sv) | 1992-01-27 | 1992-01-27 | Saett att koda en samplad talsignalvektor |
| PCT/SE1993/000024 WO1993015503A1 (en) | 1992-01-27 | 1993-01-19 | Double mode long term prediction in speech coding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| HK1003346A1 true HK1003346A1 (en) | 1998-10-23 |
| HK1003346B HK1003346B (en) | 1998-10-23 |
Family
ID=
Also Published As
| Publication number | Publication date |
|---|---|
| FI934063A7 (fi) | 1993-09-16 |
| DE69314389T2 (de) | 1998-02-05 |
| FI934063A0 (fi) | 1993-09-16 |
| SE469764B (sv) | 1993-09-06 |
| JP3073017B2 (ja) | 2000-08-07 |
| AU658053B2 (en) | 1995-03-30 |
| WO1993015503A1 (en) | 1993-08-05 |
| ES2110595T3 (es) | 1998-02-16 |
| AU3465193A (en) | 1993-09-01 |
| DE69314389D1 (de) | 1997-11-13 |
| SE9200217L (sv) | 1993-07-28 |
| JPH06506544A (ja) | 1994-07-21 |
| TW227609B (cs) | 1994-08-01 |
| US5553191A (en) | 1996-09-03 |
| SE9200217D0 (sv) | 1992-01-27 |
| CA2106390A1 (en) | 1993-07-28 |
| DK0577809T3 (da) | 1998-05-25 |
| EP0577809A1 (en) | 1994-01-12 |
| MX9300401A (es) | 1993-07-01 |
| BR9303964A (pt) | 1994-08-02 |
| EP0577809B1 (en) | 1997-10-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PC | Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee) |