DE69332989D1 - Hocheffizientes Kodierverfahren - Google Patents
Hocheffizientes KodierverfahrenInfo
- Publication number
- DE69332989D1 DE69332989D1 DE69332989T DE69332989T DE69332989D1 DE 69332989 D1 DE69332989 D1 DE 69332989D1 DE 69332989 T DE69332989 T DE 69332989T DE 69332989 T DE69332989 T DE 69332989T DE 69332989 D1 DE69332989 D1 DE 69332989D1
- Authority
- DE
- Germany
- Prior art keywords
- highly efficient
- coding process
- efficient coding
- highly
- efficient
- 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.)
- Expired - Lifetime
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
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/90—Pitch determination of speech signals
-
- 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
- G10L19/0212—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 using orthogonal transformation
-
- 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
-
- 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
- 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
- G10L19/16—Vocoder architecture
- G10L19/18—Vocoders using multiple modes
-
- 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
-
- 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
-
- 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
- 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
- G10L25/93—Discriminating between voiced and unvoiced parts of speech signals
- G10L2025/937—Signal energy in various frequency bands
-
- 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
- G10L25/27—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the analysis technique
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)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP09225992A JP3297750B2 (ja) | 1992-03-18 | 1992-03-18 | 符号化方法 |
JP9142292 | 1992-03-18 | ||
JP09142292A JP3237178B2 (ja) | 1992-03-18 | 1992-03-18 | 符号化方法及び復号化方法 |
JP9225992 | 1992-03-18 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69332989D1 true DE69332989D1 (de) | 2003-06-18 |
DE69332989T2 DE69332989T2 (de) | 2004-05-19 |
Family
ID=26432860
Family Applications (8)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69332993T Expired - Lifetime DE69332993T2 (de) | 1992-03-18 | 1993-03-18 | Hocheffizientes Kodierverfahren |
DE69332992T Expired - Lifetime DE69332992T2 (de) | 1992-03-18 | 1993-03-18 | Hocheffizientes Kodierverfahren |
DE69332990T Expired - Lifetime DE69332990T2 (de) | 1992-03-18 | 1993-03-18 | Verfahren zur Sprachanalyse und - Synthese |
DE69332994T Expired - Lifetime DE69332994T2 (de) | 1992-03-18 | 1993-03-18 | Hocheffizientes Kodierverfahren |
DE69331425T Expired - Lifetime DE69331425T2 (de) | 1992-03-18 | 1993-03-18 | Hochwirksames kodierungsverfahren |
DE69332989T Expired - Lifetime DE69332989T2 (de) | 1992-03-18 | 1993-03-18 | Hocheffizientes Kodierverfahren |
DE69332991T Expired - Lifetime DE69332991T2 (de) | 1992-03-18 | 1993-03-18 | Verfahren zur Grundfrequenz-Extraktion |
DE69333046T Expired - Lifetime DE69333046T2 (de) | 1992-03-18 | 1993-03-18 | Hocheffizientes Kodierverfahren |
Family Applications Before (5)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69332993T Expired - Lifetime DE69332993T2 (de) | 1992-03-18 | 1993-03-18 | Hocheffizientes Kodierverfahren |
DE69332992T Expired - Lifetime DE69332992T2 (de) | 1992-03-18 | 1993-03-18 | Hocheffizientes Kodierverfahren |
DE69332990T Expired - Lifetime DE69332990T2 (de) | 1992-03-18 | 1993-03-18 | Verfahren zur Sprachanalyse und - Synthese |
DE69332994T Expired - Lifetime DE69332994T2 (de) | 1992-03-18 | 1993-03-18 | Hocheffizientes Kodierverfahren |
DE69331425T Expired - Lifetime DE69331425T2 (de) | 1992-03-18 | 1993-03-18 | Hochwirksames kodierungsverfahren |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69332991T Expired - Lifetime DE69332991T2 (de) | 1992-03-18 | 1993-03-18 | Verfahren zur Grundfrequenz-Extraktion |
DE69333046T Expired - Lifetime DE69333046T2 (de) | 1992-03-18 | 1993-03-18 | Hocheffizientes Kodierverfahren |
Country Status (4)
Country | Link |
---|---|
US (3) | US5765127A (de) |
EP (8) | EP0590155B1 (de) |
DE (8) | DE69332993T2 (de) |
WO (1) | WO1993019459A1 (de) |
Families Citing this family (129)
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---|---|---|---|---|
US5495552A (en) * | 1992-04-20 | 1996-02-27 | Mitsubishi Denki Kabushiki Kaisha | Methods of efficiently recording an audio signal in semiconductor memory |
JP3475446B2 (ja) * | 1993-07-27 | 2003-12-08 | ソニー株式会社 | 符号化方法 |
CA2121667A1 (en) * | 1994-04-19 | 1995-10-20 | Jean-Pierre Adoul | Differential-transform-coded excitation for speech and audio coding |
JP3528258B2 (ja) * | 1994-08-23 | 2004-05-17 | ソニー株式会社 | 符号化音声信号の復号化方法及び装置 |
JP3328080B2 (ja) * | 1994-11-22 | 2002-09-24 | 沖電気工業株式会社 | コード励振線形予測復号器 |
FR2729247A1 (fr) * | 1995-01-06 | 1996-07-12 | Matra Communication | Procede de codage de parole a analyse par synthese |
FR2739482B1 (fr) * | 1995-10-03 | 1997-10-31 | Thomson Csf | Procede et dispositif pour l'evaluation du voisement du signal de parole par sous bandes dans des vocodeurs |
US5937381A (en) * | 1996-04-10 | 1999-08-10 | Itt Defense, Inc. | System for voice verification of telephone transactions |
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US6115687A (en) * | 1996-11-11 | 2000-09-05 | Matsushita Electric Industrial Co., Ltd. | Sound reproducing speed converter |
US6167375A (en) * | 1997-03-17 | 2000-12-26 | Kabushiki Kaisha Toshiba | Method for encoding and decoding a speech signal including background noise |
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JP3134817B2 (ja) * | 1997-07-11 | 2001-02-13 | 日本電気株式会社 | 音声符号化復号装置 |
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