DE69331425D1 - Hochwirksames kodierungsverfahren - Google Patents

Hochwirksames kodierungsverfahren

Info

Publication number
DE69331425D1
DE69331425D1 DE69331425T DE69331425T DE69331425D1 DE 69331425 D1 DE69331425 D1 DE 69331425D1 DE 69331425 T DE69331425 T DE 69331425T DE 69331425 T DE69331425 T DE 69331425T DE 69331425 D1 DE69331425 D1 DE 69331425D1
Authority
DE
Germany
Prior art keywords
highly effective
coding procedure
effective coding
procedure
highly
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
Application number
DE69331425T
Other languages
English (en)
Other versions
DE69331425T2 (de
Inventor
Masayuki Nishiguchi
Jun Matsumoto
Shinobu Ono
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Sony Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from JP09225992A external-priority patent/JP3297750B2/ja
Priority claimed from JP09142292A external-priority patent/JP3237178B2/ja
Application filed by Sony Corp filed Critical Sony Corp
Publication of DE69331425D1 publication Critical patent/DE69331425D1/de
Application granted granted Critical
Publication of DE69331425T2 publication Critical patent/DE69331425T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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)
DE69331425T 1992-03-18 1993-03-18 Hochwirksames kodierungsverfahren Expired - Lifetime DE69331425T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP09225992A JP3297750B2 (ja) 1992-03-18 1992-03-18 符号化方法
JP09142292A JP3237178B2 (ja) 1992-03-18 1992-03-18 符号化方法及び復号化方法
PCT/JP1993/000323 WO1993019459A1 (en) 1992-03-18 1993-03-18 High-efficiency encoding method

Publications (2)

Publication Number Publication Date
DE69331425D1 true DE69331425D1 (de) 2002-02-14
DE69331425T2 DE69331425T2 (de) 2002-08-29

Family

ID=26432860

Family Applications (8)

Application Number Title Priority Date Filing Date
DE69332990T Expired - Lifetime DE69332990T2 (de) 1992-03-18 1993-03-18 Verfahren zur Sprachanalyse und - Synthese
DE69333046T Expired - Lifetime DE69333046T2 (de) 1992-03-18 1993-03-18 Hocheffizientes Kodierverfahren
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
DE69331425T Expired - Lifetime DE69331425T2 (de) 1992-03-18 1993-03-18 Hochwirksames kodierungsverfahren
DE69332992T Expired - Lifetime DE69332992T2 (de) 1992-03-18 1993-03-18 Hocheffizientes Kodierverfahren
DE69332994T Expired - Lifetime DE69332994T2 (de) 1992-03-18 1993-03-18 Hocheffizientes Kodierverfahren
DE69332993T Expired - Lifetime DE69332993T2 (de) 1992-03-18 1993-03-18 Hocheffizientes Kodierverfahren

Family Applications Before (4)

Application Number Title Priority Date Filing Date
DE69332990T Expired - Lifetime DE69332990T2 (de) 1992-03-18 1993-03-18 Verfahren zur Sprachanalyse und - Synthese
DE69333046T Expired - Lifetime DE69333046T2 (de) 1992-03-18 1993-03-18 Hocheffizientes Kodierverfahren
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

Family Applications After (3)

Application Number Title Priority Date Filing Date
DE69332992T Expired - Lifetime DE69332992T2 (de) 1992-03-18 1993-03-18 Hocheffizientes Kodierverfahren
DE69332994T Expired - Lifetime DE69332994T2 (de) 1992-03-18 1993-03-18 Hocheffizientes Kodierverfahren
DE69332993T Expired - Lifetime DE69332993T2 (de) 1992-03-18 1993-03-18 Hocheffizientes Kodierverfahren

Country Status (4)

Country Link
US (3) US5765127A (de)
EP (8) EP1061504B1 (de)
DE (8) DE69332990T2 (de)
WO (1) WO1993019459A1 (de)

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US5878388A (en) 1999-03-02
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DE69332993T2 (de) 2004-05-19
EP0590155A1 (de) 1994-04-06
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US5960388A (en) 1999-09-28
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