NO950490L - Kode-eksiterende, lineært forutsigbar (CELP) koder og dekoder - Google Patents
Kode-eksiterende, lineært forutsigbar (CELP) koder og dekoderInfo
- Publication number
- NO950490L NO950490L NO950490A NO950490A NO950490L NO 950490 L NO950490 L NO 950490L NO 950490 A NO950490 A NO 950490A NO 950490 A NO950490 A NO 950490A NO 950490 L NO950490 L NO 950490L
- Authority
- NO
- Norway
- Prior art keywords
- code
- codebook
- excitation codebook
- celp
- exiting
- Prior art date
Links
- 230000005284 excitation Effects 0.000 abstract 5
- 230000003044 adaptive effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 210000000056 organ Anatomy 0.000 abstract 1
- 238000001228 spectrum 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
- G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
- G10L19/07—Line spectrum pair [LSP] 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
- G10L19/10—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a multipulse excitation
-
- 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
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
- G10L25/24—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being the cepstrum
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computational Linguistics (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP1993/000776 WO1994029965A1 (fr) | 1993-06-10 | 1993-06-10 | Codeur-decodeur predictif lineaire a excitation par codes |
SG1996004078A SG43128A1 (en) | 1993-06-10 | 1993-06-10 | Code excitation linear predictive (celp) encoder and decoder |
Publications (2)
Publication Number | Publication Date |
---|---|
NO950490D0 NO950490D0 (no) | 1995-02-09 |
NO950490L true NO950490L (no) | 1995-03-29 |
Family
ID=26434408
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO950490A NO950490L (no) | 1993-06-10 | 1995-02-09 | Kode-eksiterende, lineært forutsigbar (CELP) koder og dekoder |
Country Status (2)
Country | Link |
---|---|
NO (1) | NO950490L (fr) |
WO (1) | WO1994029965A1 (fr) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0333900A (ja) * | 1989-06-30 | 1991-02-14 | Fujitsu Ltd | 音声符号化方式 |
JP3010654B2 (ja) * | 1989-11-29 | 2000-02-21 | ソニー株式会社 | 圧縮符号化装置及び方法 |
JP2796408B2 (ja) * | 1990-06-18 | 1998-09-10 | シャープ株式会社 | 音声情報圧縮装置 |
JPH0451199A (ja) * | 1990-06-18 | 1992-02-19 | Fujitsu Ltd | 音声符号化・復号化方式 |
-
1993
- 1993-06-10 WO PCT/JP1993/000776 patent/WO1994029965A1/fr not_active Application Discontinuation
-
1995
- 1995-02-09 NO NO950490A patent/NO950490L/no unknown
Also Published As
Publication number | Publication date |
---|---|
WO1994029965A1 (fr) | 1994-12-22 |
NO950490D0 (no) | 1995-02-09 |
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