FR2732148B1 - Determination d'un vecteur d'excitation dans un codeur celp - Google Patents

Determination d'un vecteur d'excitation dans un codeur celp

Info

Publication number
FR2732148B1
FR2732148B1 FR9503735A FR9503735A FR2732148B1 FR 2732148 B1 FR2732148 B1 FR 2732148B1 FR 9503735 A FR9503735 A FR 9503735A FR 9503735 A FR9503735 A FR 9503735A FR 2732148 B1 FR2732148 B1 FR 2732148B1
Authority
FR
France
Prior art keywords
determination
excitation vector
celp encoder
celp
encoder
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 - Fee Related
Application number
FR9503735A
Other languages
English (en)
Other versions
FR2732148A1 (fr
Inventor
Mustapha Bouraoui
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.)
STMicroelectronics SA
Original Assignee
SGS Thomson Microelectronics SA
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
Application filed by SGS Thomson Microelectronics SA filed Critical SGS Thomson Microelectronics SA
Priority to FR9503735A priority Critical patent/FR2732148B1/fr
Priority to DE69614594T priority patent/DE69614594D1/de
Priority to EP96410028A priority patent/EP0734013B1/fr
Priority to JP8065885A priority patent/JPH0990996A/ja
Priority to US08/621,084 priority patent/US5719994A/en
Publication of FR2732148A1 publication Critical patent/FR2732148A1/fr
Application granted granted Critical
Publication of FR2732148B1 publication Critical patent/FR2732148B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G10L19/08—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
    • G10L2019/0013—Codebook search algorithms
    • 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
    • G10L2019/0013—Codebook search algorithms
    • G10L2019/0014—Selection criteria for distances

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
FR9503735A 1995-03-24 1995-03-24 Determination d'un vecteur d'excitation dans un codeur celp Expired - Fee Related FR2732148B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR9503735A FR2732148B1 (fr) 1995-03-24 1995-03-24 Determination d'un vecteur d'excitation dans un codeur celp
DE69614594T DE69614594D1 (de) 1995-03-24 1996-03-19 Bestimmung eines Anregungsvektors in einem CELP-Kodierer
EP96410028A EP0734013B1 (fr) 1995-03-24 1996-03-19 Determination d'un vecteur d'excitation dans un codeur CELP
JP8065885A JPH0990996A (ja) 1995-03-24 1996-03-22 音声信号のフレームに関連する励起ベクトルの決定方法
US08/621,084 US5719994A (en) 1995-03-24 1996-03-22 Determination of an excitation vector in CELP encoder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9503735A FR2732148B1 (fr) 1995-03-24 1995-03-24 Determination d'un vecteur d'excitation dans un codeur celp

Publications (2)

Publication Number Publication Date
FR2732148A1 FR2732148A1 (fr) 1996-09-27
FR2732148B1 true FR2732148B1 (fr) 1997-06-13

Family

ID=9477567

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9503735A Expired - Fee Related FR2732148B1 (fr) 1995-03-24 1995-03-24 Determination d'un vecteur d'excitation dans un codeur celp

Country Status (5)

Country Link
US (1) US5719994A (fr)
EP (1) EP0734013B1 (fr)
JP (1) JPH0990996A (fr)
DE (1) DE69614594D1 (fr)
FR (1) FR2732148B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69516522T2 (de) * 1995-11-09 2001-03-08 Nokia Mobile Phones Ltd., Salo Verfahren zur Synthetisierung eines Sprachsignalblocks in einem CELP-Kodierer

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4791654A (en) * 1987-06-05 1988-12-13 American Telephone And Telegraph Company, At&T Bell Laboratories Resisting the effects of channel noise in digital transmission of information
US5138661A (en) * 1990-11-13 1992-08-11 General Electric Company Linear predictive codeword excited speech synthesizer
FI98104C (fi) * 1991-05-20 1997-04-10 Nokia Mobile Phones Ltd Menetelmä herätevektorin generoimiseksi ja digitaalinen puhekooderi

Also Published As

Publication number Publication date
FR2732148A1 (fr) 1996-09-27
EP0734013B1 (fr) 2001-08-22
EP0734013A2 (fr) 1996-09-25
EP0734013A3 (fr) 1997-05-28
JPH0990996A (ja) 1997-04-04
US5719994A (en) 1998-02-17
DE69614594D1 (de) 2001-09-27

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Legal Events

Date Code Title Description
ST Notification of lapse