EP0542585A3 - Verfahren zur Quantisierung eines Prädiktionsfilters für einen Vocoder mit einer niedrigen Bitrate - Google Patents

Verfahren zur Quantisierung eines Prädiktionsfilters für einen Vocoder mit einer niedrigen Bitrate Download PDF

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Publication number
EP0542585A3
EP0542585A3 EP19920402716 EP92402716A EP0542585A3 EP 0542585 A3 EP0542585 A3 EP 0542585A3 EP 19920402716 EP19920402716 EP 19920402716 EP 92402716 A EP92402716 A EP 92402716A EP 0542585 A3 EP0542585 A3 EP 0542585A3
Authority
EP
European Patent Office
Prior art keywords
bit rate
low bit
quantification method
frame
predictive filter
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
EP19920402716
Other languages
English (en)
French (fr)
Other versions
EP0542585A2 (de
EP0542585B1 (de
Inventor
Pierre-André Thomson-CSF 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
Publication of EP0542585A2 publication Critical patent/EP0542585A2/de
Publication of EP0542585A3 publication Critical patent/EP0542585A3/de
Application granted granted Critical
Publication of EP0542585B1 publication Critical patent/EP0542585B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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)
  • Time-Division Multiplex Systems (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
EP92402716A 1991-10-15 1992-10-06 Verfahren zur Quantisierung eines Prädiktionsfilters für einen Vocoder mit einer niedrigen Bitrate Expired - Lifetime EP0542585B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9112669A FR2690551B1 (fr) 1991-10-15 1991-10-15 Procede de quantification d'un filtre predicteur pour vocodeur a tres faible debit.
FR9112669 1991-10-15

Publications (3)

Publication Number Publication Date
EP0542585A2 EP0542585A2 (de) 1993-05-19
EP0542585A3 true EP0542585A3 (de) 1993-06-09
EP0542585B1 EP0542585B1 (de) 1998-02-04

Family

ID=9417911

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92402716A Expired - Lifetime EP0542585B1 (de) 1991-10-15 1992-10-06 Verfahren zur Quantisierung eines Prädiktionsfilters für einen Vocoder mit einer niedrigen Bitrate

Country Status (6)

Country Link
US (1) US5522009A (de)
EP (1) EP0542585B1 (de)
JP (1) JPH0627998A (de)
CA (1) CA2080572C (de)
DE (1) DE69224352T2 (de)
FR (1) FR2690551B1 (de)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2738383B1 (fr) * 1995-09-05 1997-10-03 Thomson Csf Procede de quantification vectorielle de vocodeurs bas debit
US5682462A (en) * 1995-09-14 1997-10-28 Motorola, Inc. Very low bit rate voice messaging system using variable rate backward search interpolation processing
US5950151A (en) * 1996-02-12 1999-09-07 Lucent Technologies Inc. Methods for implementing non-uniform filters
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
US6681203B1 (en) * 1999-02-26 2004-01-20 Lucent Technologies Inc. Coupled error code protection for multi-mode vocoders
FR2799592B1 (fr) 1999-10-12 2003-09-26 Thomson Csf Procede de construction et de codage simple et systematique de codes ldpc
US6735561B1 (en) 2000-03-29 2004-05-11 At&T Corp. Effective deployment of temporal noise shaping (TNS) filters
US7099830B1 (en) * 2000-03-29 2006-08-29 At&T Corp. Effective deployment of temporal noise shaping (TNS) filters
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
DE60208426T2 (de) * 2001-11-02 2006-08-24 Matsushita Electric Industrial Co., Ltd., Kadoma Vorrichtung zur signalkodierung, signaldekodierung und system zum verteilen von audiodaten
FR2832879B1 (fr) * 2001-11-23 2006-08-18 Thales Sa Procede et egalisation par segmentations des donnees
FR2832877B1 (fr) * 2001-11-23 2006-08-18 Thales Sa Procede et dispositif d'egalisation par blocs avec interpolation amelioree
FR2832880B1 (fr) * 2001-11-23 2004-04-09 Thales Sa Procede et dispositif d'egalisation par blocs avec adaptation au canal de transmission
US8219391B2 (en) * 2005-02-15 2012-07-10 Raytheon Bbn Technologies Corp. Speech analyzing system with speech codebook
JP5649524B2 (ja) * 2011-06-27 2015-01-07 日本電信電話株式会社 映像符号化方法，装置，映像復号方法，装置およびそれらのプログラム
CN112504163B (zh) * 2020-12-11 2022-08-02 北京首钢股份有限公司 热轧带钢横段面的轮廓曲线获取方法、装置及电子设备

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4852179A (en) * 1987-10-05 1989-07-25 Motorola, Inc. Variable frame rate, fixed bit rate vocoding method
EP0428445A1 (de) * 1989-11-14 1991-05-22 Thomson-Csf Verfahren und Einrichtung zur Codierung von Prädiktionsfiltern in Vocodern mit sehr niedriger Datenrate

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3715512A (en) * 1971-12-20 1973-02-06 Bell Telephone Labor Inc Adaptive predictive speech signal coding system
JPS60116000A (ja) * 1983-11-28 1985-06-22 ケイディディ株式会社 音声符号化装置
IT1180126B (it) * 1984-11-13 1987-09-23 Cselt Centro Studi Lab Telecom Procedimento e dispositivo per la codifica e decodifica del segnale vocale mediante tecniche di quantizzazione vettoriale
US4815134A (en) * 1987-09-08 1989-03-21 Texas Instruments Incorporated Very low rate speech encoder and decoder
US5274739A (en) * 1990-05-22 1993-12-28 Rockwell International Corporation Product code memory Itakura-Saito (MIS) measure for sound recognition

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4852179A (en) * 1987-10-05 1989-07-25 Motorola, Inc. Variable frame rate, fixed bit rate vocoding method
EP0428445A1 (de) * 1989-11-14 1991-05-22 Thomson-Csf Verfahren und Einrichtung zur Codierung von Prädiktionsfiltern in Vocodern mit sehr niedriger Datenrate

Non-Patent Citations (9)

* Cited by examiner, † Cited by third party
Title
ICASSP'87 (1987 INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, Dallas, Texas, 6-9 avril 1987), vol. 3, pages 1653-1656, IEEE, New York, US; J. PICONE et al.: "Low rate speech coding using contour quantization" *
ICASSP'89 (1989 INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, Glasgow, 23-26 mai 1989), vol. 1, pages 156-159, IEEE, New York, US; T. TANIGUCHI et al.: "Multimode coding: application to CELP" *
ICASSP'91 (1991 INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, Toronto, Ontario, 14-17 mai 1991), vol. 1, pages 609-612, IEEE, New York, US; D.P. KEMP et al.: "Multi-frame coding of LPC parameters at 600-800 BPS" *
ICCE '86 (1986 IEEE International Conference on Consumer Electronics, 3-6 June 1986), N. MORI et al.: "A voice activated telephone", pages 102,103 *
IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE & EXHIBITION, Hollywood, Florida, 28 novembre - 1 décembre 1988, vol. 1, pages 290-294, IEEE, New York, US; M. YONG et al.: "Vector excitation coding with dynamic bit allocation" *
IEEE TRANSACTIONS ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, vol. ASSP-24, no. 5, octobre 1976, pages 380-391, New York, US; A.H. GRAY, Jr. et al.: "Distance measures for speech processing" *
IEEE TRANSACTIONS ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, vol. ASSP-25, no. 4, août 1977, pages 322-330, New York, US; S. CHANDRA et al.: "Linear prediction with a variable analysis frame size" *
IEEE TRANSACTIONS ON COMMUNICATIONS, vol. COM-30, no. 4, avril 1982, pages 674-686, New York, US; V.R. VISWANATHAN et al.: "Variable frame rate transmission: a review of methodology and application to narrow-band LPC speech coding" *
MILCOM'91 (1991 IEEE MILITARY COMMUNICATIONS IN A CHANGING WORLD, McLean, 4-7 novembre 1991), vol. 3, pages 1215-1219, IEEE, New York, US; B. FETTE et al.: "A 600 BPS LPC voice coder" *

Also Published As

Publication number Publication date
US5522009A (en) 1996-05-28
FR2690551A1 (fr) 1993-10-29
DE69224352T2 (de) 1998-05-28
DE69224352D1 (de) 1998-03-12
CA2080572A1 (en) 1993-04-16
EP0542585A2 (de) 1993-05-19
CA2080572C (en) 2001-12-04
JPH0627998A (ja) 1994-02-04
FR2690551B1 (fr) 1994-06-03
EP0542585B1 (de) 1998-02-04

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