DE69232887D1 - Sprachkodierungsverfahren - Google Patents

Sprachkodierungsverfahren

Info

Publication number
DE69232887D1
DE69232887D1 DE69232887T DE69232887T DE69232887D1 DE 69232887 D1 DE69232887 D1 DE 69232887D1 DE 69232887 T DE69232887 T DE 69232887T DE 69232887 T DE69232887 T DE 69232887T DE 69232887 D1 DE69232887 D1 DE 69232887D1
Authority
DE
Germany
Prior art keywords
coding method
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
DE69232887T
Other languages
English (en)
Other versions
DE69232887T2 (de
Inventor
Kazunori Ozawa
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.)
NEC Corp
Original Assignee
NEC 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 JP26192591A external-priority patent/JP3151874B2/ja
Application filed by NEC Corp filed Critical NEC Corp
Publication of DE69232887D1 publication Critical patent/DE69232887D1/de
Application granted granted Critical
Publication of DE69232887T2 publication Critical patent/DE69232887T2/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
    • 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
    • G10L19/002—Dynamic bit allocation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/3082—Vector coding
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Signal Processing (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
DE69232887T 1991-02-26 1992-02-25 Sprachkodierungsverfahren Expired - Lifetime DE69232887T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP10326791 1991-02-26
JP26192591A JP3151874B2 (ja) 1991-02-26 1991-10-09 音声パラメータ符号化方式および装置

Publications (2)

Publication Number Publication Date
DE69232887D1 true DE69232887D1 (de) 2003-02-06
DE69232887T2 DE69232887T2 (de) 2003-06-05

Family

ID=26443908

Family Applications (3)

Application Number Title Priority Date Filing Date
DE69229974T Expired - Lifetime DE69229974T2 (de) 1991-02-26 1992-02-25 Verfahren und Vorrichtung zur Kodierung von Sprachparametern
DE69232887T Expired - Lifetime DE69232887T2 (de) 1991-02-26 1992-02-25 Sprachkodierungsverfahren
DE69232879T Expired - Lifetime DE69232879T2 (de) 1991-02-26 1992-02-25 Sprachparameterkodierungsvorrichtung

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE69229974T Expired - Lifetime DE69229974T2 (de) 1991-02-26 1992-02-25 Verfahren und Vorrichtung zur Kodierung von Sprachparametern

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE69232879T Expired - Lifetime DE69232879T2 (de) 1991-02-26 1992-02-25 Sprachparameterkodierungsvorrichtung

Country Status (2)

Country Link
EP (2) EP0910064B1 (de)
DE (3) DE69229974T2 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2490879B (en) 2011-05-12 2018-12-26 Qualcomm Technologies Int Ltd Hybrid coded audio data streaming apparatus and method

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1323934C (en) * 1986-04-15 1993-11-02 Tetsu Taguchi Speech processing apparatus
GB2210236B (en) * 1987-09-24 1991-12-18 Newbridge Networks Corp Speech processing system
US4852179A (en) * 1987-10-05 1989-07-25 Motorola, Inc. Variable frame rate, fixed bit rate vocoding method
CA1333420C (en) * 1988-02-29 1994-12-06 Tokumichi Murakami Vector quantizer
IT1224453B (it) * 1988-09-28 1990-10-04 Sip Procedimento e dispositivo per la codifica decodifica di segnali vocali con l'impiego di un eccitazione a impulsi multipli
IT1232084B (it) * 1989-05-03 1992-01-23 Cselt Centro Studi Lab Telecom Sistema di codifica per segnali audio a banda allargata
EP0443548B1 (de) * 1990-02-22 2003-07-23 Nec Corporation Sprachcodierer

Also Published As

Publication number Publication date
EP0910064B1 (de) 2002-12-18
DE69232879T2 (de) 2003-05-08
EP0910064A3 (de) 1999-06-16
DE69232887T2 (de) 2003-06-05
DE69232879D1 (de) 2003-01-30
EP0910063B1 (de) 2003-01-02
EP0910064A2 (de) 1999-04-21
DE69229974T2 (de) 2000-07-20
EP0910063A3 (de) 1999-06-09
EP0910063A2 (de) 1999-04-21
DE69229974D1 (de) 1999-10-21

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition