FR2452756A1 - Procede de traitement d'un signal de parole et circuit correspondant - Google Patents

Procede de traitement d'un signal de parole et circuit correspondant

Info

Publication number
FR2452756A1
FR2452756A1 FR8006592A FR8006592A FR2452756A1 FR 2452756 A1 FR2452756 A1 FR 2452756A1 FR 8006592 A FR8006592 A FR 8006592A FR 8006592 A FR8006592 A FR 8006592A FR 2452756 A1 FR2452756 A1 FR 2452756A1
Authority
FR
France
Prior art keywords
signals
prediction
processing
speech
corresponding circuit
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.)
Granted
Application number
FR8006592A
Other languages
English (en)
Other versions
FR2452756B1 (fr
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Western Electric Co Inc filed Critical Western Electric Co Inc
Publication of FR2452756A1 publication Critical patent/FR2452756A1/fr
Application granted granted Critical
Publication of FR2452756B1 publication Critical patent/FR2452756B1/fr
Expired 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
    • G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients

Abstract

L'INVENTION CONCERNE LE TRAITEMENT NUMERIQUE DE SIGNAUX DE PAROLE. POUR CHAQUE INTERVALLE D'UN SIGNAL DE PAROLE, UN CALCULATEUR DE PARAMETRES 130 ENGENDRE UN ENSEMBLE DE SIGNAUX DE PARAMETRES DE PREDICTION ET DE SIGNAUX REPRESENTATIFS DE LA HAUTEUR ET DU CARACTERE SOURDSONORE, AINSI QU'UN ENSEMBLE DE SIGNAUX CORRESPONDANT AU SPECTRE DU SIGNAL D'ERREUR DE PREDICTION. LES SIGNAUX REPRESENTATIFS DE LA HAUTEUR ET DU CARACTERE SOURDSONORE SONT MIS EN FORME EN SE BASANT SUR LES SIGNAUX SPECTRAUX D'ERREUR DE PREDICTION POUR COMPENSER LES ERREURS QUI EXISTENT DANS LES SIGNAUX DE PARAMETRES DE PREDICTION, GRACE A QUOI LA PAROLE RECONSTITUEE PRESENTE UNE SONORITE NATURELLE. APPLICATION A LA TELEPHONIE.
FR8006592A 1979-03-30 1980-03-25 Procede de traitement d'un signal de parole et circuit correspondant Expired FR2452756B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/025,731 US4220819A (en) 1979-03-30 1979-03-30 Residual excited predictive speech coding system

Publications (2)

Publication Number Publication Date
FR2452756A1 true FR2452756A1 (fr) 1980-10-24
FR2452756B1 FR2452756B1 (fr) 1985-08-02

Family

ID=21827763

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8006592A Expired FR2452756B1 (fr) 1979-03-30 1980-03-25 Procede de traitement d'un signal de parole et circuit correspondant

Country Status (8)

Country Link
US (1) US4220819A (fr)
JP (1) JPS5936275B2 (fr)
DE (1) DE3041423C1 (fr)
FR (1) FR2452756B1 (fr)
GB (1) GB2058523B (fr)
NL (1) NL8020114A (fr)
SE (1) SE422377B (fr)
WO (1) WO1980002211A1 (fr)

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NL188189C (nl) * 1979-04-04 1992-04-16 Philips Nv Werkwijze ter bepaling van stuursignalen voor besturing van polen van een louter-polen filter in een spraaksynthese-inrichting.
JPS57500901A (fr) * 1980-05-19 1982-05-20
US4544919A (en) * 1982-01-03 1985-10-01 Motorola, Inc. Method and means of determining coefficients for linear predictive coding
US4520499A (en) * 1982-06-25 1985-05-28 Milton Bradley Company Combination speech synthesis and recognition apparatus
JPS59153346A (ja) * 1983-02-21 1984-09-01 Nec Corp 音声符号化・復号化装置
US4731846A (en) * 1983-04-13 1988-03-15 Texas Instruments Incorporated Voice messaging system with pitch tracking based on adaptively filtered LPC residual signal
US4667340A (en) * 1983-04-13 1987-05-19 Texas Instruments Incorporated Voice messaging system with pitch-congruent baseband coding
CA1223365A (fr) * 1984-02-02 1987-06-23 Shigeru Ono Methode et appareil de codage de paroles
US4704730A (en) * 1984-03-12 1987-11-03 Allophonix, Inc. Multi-state speech encoder and decoder
JPS60239798A (ja) * 1984-05-14 1985-11-28 日本電気株式会社 音声信号符号化／復号化装置
CA1255802A (fr) * 1984-07-05 1989-06-13 Kazunori Ozawa Codage et decodage de signaux a faible debit binaire utilisant un nombre restreint d'impulsions d'excitation
US4675863A (en) * 1985-03-20 1987-06-23 International Mobile Machines Corp. Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels
US5067158A (en) * 1985-06-11 1991-11-19 Texas Instruments Incorporated Linear predictive residual representation via non-iterative spectral reconstruction
US4776014A (en) * 1986-09-02 1988-10-04 General Electric Company Method for pitch-aligned high-frequency regeneration in RELP vocoders
US4860360A (en) * 1987-04-06 1989-08-22 Gte Laboratories Incorporated Method of evaluating speech
US5202953A (en) * 1987-04-08 1993-04-13 Nec Corporation Multi-pulse type coding system with correlation calculation by backward-filtering operation for multi-pulse searching
US4817157A (en) * 1988-01-07 1989-03-28 Motorola, Inc. Digital speech coder having improved vector excitation source
US4896361A (en) * 1988-01-07 1990-01-23 Motorola, Inc. Digital speech coder having improved vector excitation source
AU620384B2 (en) * 1988-03-28 1992-02-20 Nec Corporation Linear predictive speech analysis-synthesis apparatus
JPH0782359B2 (ja) * 1989-04-21 1995-09-06 三菱電機株式会社 音声符号化装置、音声復号化装置及び音声符号化・復号化装置
US5261027A (en) * 1989-06-28 1993-11-09 Fujitsu Limited Code excited linear prediction speech coding system
US5263119A (en) * 1989-06-29 1993-11-16 Fujitsu Limited Gain-shape vector quantization method and apparatus
JPH0332228A (ja) * 1989-06-29 1991-02-12 Fujitsu Ltd ゲイン―シェイプ・ベクトル量子化方式
JPH0365822A (ja) * 1989-08-04 1991-03-20 Fujitsu Ltd ベクトル量子化符号器及びベクトル量子化復号器
US5054075A (en) * 1989-09-05 1991-10-01 Motorola, Inc. Subband decoding method and apparatus
DE69033672T2 (de) * 1989-10-17 2001-05-10 Motorola Inc Auf dem lpc-verfahren beruhende sprachsynthese mit adaptivem pitchvorfilter
US5195168A (en) * 1991-03-15 1993-03-16 Codex Corporation Speech coder and method having spectral interpolation and fast codebook search
US5265190A (en) * 1991-05-31 1993-11-23 Motorola, Inc. CELP vocoder with efficient adaptive codebook search
US5255339A (en) * 1991-07-19 1993-10-19 Motorola, Inc. Low bit rate vocoder means and method
US5357567A (en) * 1992-08-14 1994-10-18 Motorola, Inc. Method and apparatus for volume switched gain control
US5546383A (en) 1993-09-30 1996-08-13 Cooley; David M. Modularly clustered radiotelephone system
US5621852A (en) * 1993-12-14 1997-04-15 Interdigital Technology Corporation Efficient codebook structure for code excited linear prediction coding
US5761633A (en) * 1994-08-30 1998-06-02 Samsung Electronics Co., Ltd. Method of encoding and decoding speech signals
JP3137176B2 (ja) * 1995-12-06 2001-02-19 日本電気株式会社 音声符号化装置
US5839098A (en) 1996-12-19 1998-11-17 Lucent Technologies Inc. Speech coder methods and systems
US6973424B1 (en) * 1998-06-30 2005-12-06 Nec Corporation Voice coder
US7171355B1 (en) 2000-10-25 2007-01-30 Broadcom Corporation Method and apparatus for one-stage and two-stage noise feedback coding of speech and audio signals
US7110942B2 (en) * 2001-08-14 2006-09-19 Broadcom Corporation Efficient excitation quantization in a noise feedback coding system using correlation techniques
US7206740B2 (en) * 2002-01-04 2007-04-17 Broadcom Corporation Efficient excitation quantization in noise feedback coding with general noise shaping
US6751587B2 (en) 2002-01-04 2004-06-15 Broadcom Corporation Efficient excitation quantization in noise feedback coding with general noise shaping
US8473286B2 (en) * 2004-02-26 2013-06-25 Broadcom Corporation Noise feedback coding system and method for providing generalized noise shaping within a simple filter structure
EP2309776B1 (fr) * 2009-09-14 2014-07-23 GN Resound A/S Appareil auditif permettant une compensation adaptative de réaction

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US2928902A (en) * 1957-05-14 1960-03-15 Vilbig Friedrich Signal transmission
US3979557A (en) * 1974-07-03 1976-09-07 International Telephone And Telegraph Corporation Speech processor system for pitch period extraction using prediction filters
US3975587A (en) * 1974-09-13 1976-08-17 International Telephone And Telegraph Corporation Digital vocoder
JPS6051720B2 (ja) * 1975-08-22 1985-11-15 日本電信電話株式会社 音声の基本周期抽出装置

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
EXBK/74 *
EXBK/75 *
EXBK/78 *
EXBK/79 *

Also Published As

Publication number Publication date
JPS5936275B2 (ja) 1984-09-03
WO1980002211A1 (fr) 1980-10-16
GB2058523B (en) 1983-09-14
NL8020114A (nl) 1981-01-30
DE3041423C1 (de) 1987-04-16
FR2452756B1 (fr) 1985-08-02
JPS56500314A (fr) 1981-03-12
US4220819A (en) 1980-09-02
GB2058523A (en) 1981-04-08
SE8008245L (sv) 1980-11-25
SE422377B (sv) 1982-03-01

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