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ES2069044T3 - Procedimiento y dispositivo de codificacion de filtros predictores de codificadores vocales de muy bajo flujo. - Google Patents

Procedimiento y dispositivo de codificacion de filtros predictores de codificadores vocales de muy bajo flujo.

Info

Publication number
ES2069044T3
ES2069044T3 ES90403195T ES90403195T ES2069044T3 ES 2069044 T3 ES2069044 T3 ES 2069044T3 ES 90403195 T ES90403195 T ES 90403195T ES 90403195 T ES90403195 T ES 90403195T ES 2069044 T3 ES2069044 T3 ES 2069044T3
Authority
ES
Spain
Prior art keywords
coding
filters
procedure
low flow
vocal
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
ES90403195T
Other languages
English (en)
Inventor
Pierre-Andre Laurent
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.)
Thales SA
Original Assignee
Thomson CSF 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 Thomson CSF SA filed Critical Thomson CSF SA
Application granted granted Critical
Publication of ES2069044T3 publication Critical patent/ES2069044T3/es
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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

EL PROCESO CONSISTE EN CORTAR LA SEÑAL VOCAL EN TRAMOS BINARIOS DE DURACION DETERMINADA PARA AGRUPARLOS (12 SUB 1 ...12 SUB 3) EN PAQUETES DE TRAMOS SUCESIVOS ASOCIANDO A CADA TRAMO DE UN PAQUETE UN FILTRO PRONOSTICADOS Y EN CUANTIFICAR (18 SUB 1...18 SUB 3) LOS COEFICIENTES DE CADA FILTRO PRONOSTICADOR TENIENDO EN CUENTA (20, 21) LA CONFIGURACION ESTABLE O INESTABLE DE LA SEÑAL VOCAL. APLICACION: CODIFICACION DE LA PALABRA.
ES90403195T 1989-11-14 1990-11-09 Procedimiento y dispositivo de codificacion de filtros predictores de codificadores vocales de muy bajo flujo. Expired - Lifetime ES2069044T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8914897A FR2654542B1 (fr) 1989-11-14 1989-11-14 Procede et dispositif de codage de filtres predicteurs de vocodeurs tres bas debit.

Publications (1)

Publication Number Publication Date
ES2069044T3 true ES2069044T3 (es) 1995-05-01

Family

ID=9387367

Family Applications (1)

Application Number Title Priority Date Filing Date
ES90403195T Expired - Lifetime ES2069044T3 (es) 1989-11-14 1990-11-09 Procedimiento y dispositivo de codificacion de filtros predictores de codificadores vocales de muy bajo flujo.

Country Status (6)

Country Link
US (1) US5243685A (es)
EP (1) EP0428445B1 (es)
CA (1) CA2029768C (es)
DE (1) DE69017842T2 (es)
ES (1) ES2069044T3 (es)
FR (1) FR2654542B1 (es)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2661541A1 (fr) * 1990-04-27 1991-10-31 Thomson Csf Procede et dispositif de codage bas debit de la parole.
FR2690551B1 (fr) * 1991-10-15 1994-06-03 Thomson Csf Procede de quantification d'un filtre predicteur pour vocodeur a tres faible debit.
FR2738383B1 (fr) * 1995-09-05 1997-10-03 Thomson Csf Procede de quantification vectorielle de vocodeurs bas debit
US5884259A (en) * 1997-02-12 1999-03-16 International Business Machines Corporation Method and apparatus for a time-synchronous tree-based search strategy
FR2778041A1 (fr) * 1998-04-24 1999-10-29 Thomson Csf Procede de neutrodynage du tube d'un emetteur
FR2788390B1 (fr) 1999-01-12 2003-05-30 Thomson Csf Emetteur de radiodiffusion en ondes courtes a haut rendement optimise pour les emissions de type numerique
FR2790343B1 (fr) 1999-02-26 2001-06-01 Thomson Csf Systeme pour l'estimation du gain complexe d'un canal de transmission
FR2799592B1 (fr) 1999-10-12 2003-09-26 Thomson Csf Procede de construction et de codage simple et systematique de codes ldpc
FR2815492B1 (fr) * 2000-10-13 2003-02-14 Thomson Csf Systeme et procede de radiodiffusion assurant une continuite de service
FR2826208B1 (fr) 2001-06-19 2003-12-05 Thales Sa Systeme et procede de transmission d'un signal audio ou phonie
FR2826492B1 (fr) * 2001-06-22 2003-09-26 Thales Sa Procede et systeme de pre et de post-traitement d'un signal audio pour la transmission sur un canal fortement perturbe
FR2832879B1 (fr) * 2001-11-23 2006-08-18 Thales Sa Procede et egalisation par segmentations des donnees
FR2832880B1 (fr) * 2001-11-23 2004-04-09 Thales Sa Procede et dispositif d'egalisation par blocs avec adaptation au canal de transmission
FR2832877B1 (fr) * 2001-11-23 2006-08-18 Thales Sa Procede et dispositif d'egalisation par blocs avec interpolation amelioree
KR101826219B1 (ko) * 2014-01-24 2018-02-13 니폰 덴신 덴와 가부시끼가이샤 선형 예측 분석 장치, 방법, 프로그램 및 기록 매체
EP3462449B1 (en) 2014-01-24 2021-01-06 Nippon Telegraph and Telephone Corporation Linear predictive analysis apparatus, method, program and recording medium
US9972301B2 (en) * 2016-10-18 2018-05-15 Mastercard International Incorporated Systems and methods for correcting text-to-speech pronunciation

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4797925A (en) * 1986-09-26 1989-01-10 Bell Communications Research, Inc. Method for coding speech at low bit rates
JPS63211987A (ja) * 1987-02-27 1988-09-05 Sony Corp 予測符号化装置
US4868867A (en) * 1987-04-06 1989-09-19 Voicecraft Inc. Vector excitation speech or audio coder for transmission or storage
US4852179A (en) * 1987-10-05 1989-07-25 Motorola, Inc. Variable frame rate, fixed bit rate vocoding method
US4817157A (en) * 1988-01-07 1989-03-28 Motorola, Inc. Digital speech coder having improved vector excitation source
US4963034A (en) * 1989-06-01 1990-10-16 Simon Fraser University Low-delay vector backward predictive coding of speech

Also Published As

Publication number Publication date
DE69017842D1 (de) 1995-04-20
EP0428445A1 (fr) 1991-05-22
CA2029768C (fr) 2001-01-09
FR2654542A1 (fr) 1991-05-17
EP0428445B1 (fr) 1995-03-15
DE69017842T2 (de) 1995-08-17
US5243685A (en) 1993-09-07
FR2654542B1 (fr) 1992-01-17
CA2029768A1 (fr) 1991-05-15

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