DE69032551T2 - Einrichtung zur Sprachkodierung - Google Patents

Einrichtung zur Sprachkodierung

Info

Publication number
DE69032551T2
DE69032551T2 DE69032551T DE69032551T DE69032551T2 DE 69032551 T2 DE69032551 T2 DE 69032551T2 DE 69032551 T DE69032551 T DE 69032551T DE 69032551 T DE69032551 T DE 69032551T DE 69032551 T2 DE69032551 T2 DE 69032551T2
Authority
DE
Germany
Prior art keywords
coding device
speech coding
speech
coding
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
DE69032551T
Other languages
English (en)
Other versions
DE69032551D1 (de
Inventor
Masami Akamine
Yuji Okuda
Kimio Miseki
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.)
Toshiba Corp
Original Assignee
Toshiba 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 JP01268050A external-priority patent/JP3112462B2/ja
Priority claimed from JP2044405A external-priority patent/JP2829083B2/ja
Application filed by Toshiba Corp filed Critical Toshiba Corp
Publication of DE69032551D1 publication Critical patent/DE69032551D1/de
Application granted granted Critical
Publication of DE69032551T2 publication Critical patent/DE69032551T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • 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
    • G10L19/083—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being an excitation gain
    • 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
    • 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
    • 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
    • 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
    • G10L2019/0014—Selection criteria for distances
DE69032551T 1989-10-17 1990-10-17 Einrichtung zur Sprachkodierung Expired - Lifetime DE69032551T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP01268050A JP3112462B2 (ja) 1989-10-17 1989-10-17 音声符号化装置
JP2044405A JP2829083B2 (ja) 1990-02-27 1990-02-27 ベクトル量子化方式

Publications (2)

Publication Number Publication Date
DE69032551D1 DE69032551D1 (de) 1998-09-17
DE69032551T2 true DE69032551T2 (de) 1999-03-11

Family

ID=26384307

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69032551T Expired - Lifetime DE69032551T2 (de) 1989-10-17 1990-10-17 Einrichtung zur Sprachkodierung

Country Status (4)

Country Link
US (2) US5230036A (de)
EP (1) EP0424121B1 (de)
CA (1) CA2027705C (de)
DE (1) DE69032551T2 (de)

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EP0424121A2 (de) 1991-04-24
EP0424121B1 (de) 1998-08-12
DE69032551D1 (de) 1998-09-17
USRE36646E (en) 2000-04-04
CA2027705A1 (en) 1991-04-18
CA2027705C (en) 1994-02-15
EP0424121A3 (en) 1993-05-12
US5230036A (en) 1993-07-20

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