DE69122006D1 - Kodierungsverfahren und Sprachkodierer unter Anwendung von Analyse durch lineare Prädiktion - Google Patents

Kodierungsverfahren und Sprachkodierer unter Anwendung von Analyse durch lineare Prädiktion

Info

Publication number
DE69122006D1
DE69122006D1 DE69122006T DE69122006T DE69122006D1 DE 69122006 D1 DE69122006 D1 DE 69122006D1 DE 69122006 T DE69122006 T DE 69122006T DE 69122006 T DE69122006 T DE 69122006T DE 69122006 D1 DE69122006 D1 DE 69122006D1
Authority
DE
Germany
Prior art keywords
signal
term
subjected
frame
word
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
DE69122006T
Other languages
English (en)
Other versions
DE69122006T2 (de
Inventor
Marc Delprat
Christophe Gruet
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.)
EADS Defence and Security Networks SAS
Original Assignee
Matra Communication 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 Matra Communication SA filed Critical Matra Communication SA
Publication of DE69122006D1 publication Critical patent/DE69122006D1/de
Application granted granted Critical
Publication of DE69122006T2 publication Critical patent/DE69122006T2/de
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
    • G10L19/12—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
    • G10L2019/0001—Codebooks
    • G10L2019/0002—Codebook adaptations
    • 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
    • G10L2019/0011—Long term prediction filters, i.e. pitch estimation
    • 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)
  • Filters That Use Time-Delay Elements (AREA)
DE69122006T 1990-08-02 1991-07-31 Kodierungsverfahren und Sprachkodierer unter Anwendung von Analyse durch lineare Prädiktion Expired - Fee Related DE69122006T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9009905A FR2665567B1 (fr) 1990-08-02 1990-08-02 Procede de codage et codeur de parole a analyse par prediction lineaire.

Publications (2)

Publication Number Publication Date
DE69122006D1 true DE69122006D1 (de) 1996-10-17
DE69122006T2 DE69122006T2 (de) 1997-04-03

Family

ID=9399367

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69122006T Expired - Fee Related DE69122006T2 (de) 1990-08-02 1991-07-31 Kodierungsverfahren und Sprachkodierer unter Anwendung von Analyse durch lineare Prädiktion

Country Status (5)

Country Link
EP (1) EP0469997B1 (de)
DE (1) DE69122006T2 (de)
DK (1) DK0469997T3 (de)
ES (1) ES2091890T3 (de)
FR (1) FR2665567B1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2042410B1 (es) * 1992-04-15 1997-01-01 Control Sys S A Metodo de codificacion y codificador de voz para equipos y sistemas de comunicacion.

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4899385A (en) * 1987-06-26 1990-02-06 American Telephone And Telegraph Company Code excited linear predictive vocoder

Also Published As

Publication number Publication date
EP0469997B1 (de) 1996-09-11
EP0469997A1 (de) 1992-02-05
DE69122006T2 (de) 1997-04-03
ES2091890T3 (es) 1996-11-16
DK0469997T3 (da) 1996-12-09
FR2665567B1 (fr) 1993-07-30
FR2665567A1 (fr) 1992-02-07

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: MATRA NORTEL COMMUNICATIONS, QUIMPER, FR

8327 Change in the person/name/address of the patent owner

Owner name: EADS DEFENCE AND SECURITY NETWORKS, MONTIGNY LE BR

8339 Ceased/non-payment of the annual fee