CA2182386A1 - Procede de codage de parole a prediction lineaire et excitation par codes algebriques - Google Patents

Procede de codage de parole a prediction lineaire et excitation par codes algebriques

Info

Publication number
CA2182386A1
CA2182386A1 CA002182386A CA2182386A CA2182386A1 CA 2182386 A1 CA2182386 A1 CA 2182386A1 CA 002182386 A CA002182386 A CA 002182386A CA 2182386 A CA2182386 A CA 2182386A CA 2182386 A1 CA2182386 A1 CA 2182386A1
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CA
Canada
Prior art keywords
posi
coding method
linear prediction
speech coding
algebraic
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Granted
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CA002182386A
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English (en)
Other versions
CA2182386C (fr
Inventor
Claude Lamblin
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Orange SA
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Individual
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Publication of CA2182386A1 publication Critical patent/CA2182386A1/fr
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Publication of CA2182386C publication Critical patent/CA2182386C/fr
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
    • G10L13/00—Speech synthesis; Text to speech systems
    • 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
    • G10L19/107—Sparse pulse excitation, e.g. by using algebraic codebook
    • 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
    • G10L2019/0007—Codebook element generation
    • G10L2019/0008—Algebraic codebooks
    • 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)
  • Physics & Mathematics (AREA)
  • Computational Linguistics (AREA)
  • Multimedia (AREA)
  • Acoustics & Sound (AREA)
  • Human Computer Interaction (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Mathematical Analysis (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing (AREA)
  • Pure & Applied Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Mathematical Optimization (AREA)
  • General Physics & Mathematics (AREA)
  • Algebra (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)

Abstract

Le procédé utilise la technique de codage CELP à répertoire algébrique. La recherche de l'excitation CELP comporte un calcul de certaines composantes de la matrice de covariance U = HT.H où H désigne une matrice triangulaire inférieure de Toeplitz formée à partir de la réponse impulsionnelle d'un filtre composé de filtres de synthèse et d'un filtre de pondération perceptuelle. Les composantes mémorisées de la matrice de covariance sont seulement celles de la forme U(posi,p, posi,p) et celles de la forme U(posi,p, posj,q,) posi,p et posj,q désignant respectivement la position i et la position j pour les impulsions p et q dans les codes du répertoire algébrique.
CA002182386A 1995-01-06 1996-01-04 Procede de codage de parole a prediction lineaire et excitation par codes algebriques Expired - Lifetime CA2182386C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9500133A FR2729245B1 (fr) 1995-01-06 1995-01-06 Procede de codage de parole a prediction lineaire et excitation par codes algebriques
FR95/00133 1995-01-06
PCT/FR1996/000017 WO1996021221A1 (fr) 1995-01-06 1996-01-04 Procede de codage de parole a prediction lineaire et excitation par codes algebriques

Publications (2)

Publication Number Publication Date
CA2182386A1 true CA2182386A1 (fr) 1996-07-11
CA2182386C CA2182386C (fr) 2003-09-09

Family

ID=9474930

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002182386A Expired - Lifetime CA2182386C (fr) 1995-01-06 1996-01-04 Procede de codage de parole a prediction lineaire et excitation par codes algebriques

Country Status (8)

Country Link
US (1) US5717825A (fr)
EP (1) EP0749626B1 (fr)
JP (1) JP3481251B2 (fr)
KR (1) KR100389693B1 (fr)
CA (1) CA2182386C (fr)
DE (1) DE69604729T2 (fr)
FR (1) FR2729245B1 (fr)
WO (1) WO1996021221A1 (fr)

Families Citing this family (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2729247A1 (fr) * 1995-01-06 1996-07-12 Matra Communication Procede de codage de parole a analyse par synthese
FR2729246A1 (fr) * 1995-01-06 1996-07-12 Matra Communication Procede de codage de parole a analyse par synthese
US5646867A (en) * 1995-07-24 1997-07-08 Motorola Inc. Method and system for improved motion compensation
JP3094908B2 (ja) * 1996-04-17 2000-10-03 日本電気株式会社 音声符号化装置
JP3707154B2 (ja) * 1996-09-24 2005-10-19 ソニー株式会社 音声符号化方法及び装置
DE19641619C1 (de) * 1996-10-09 1997-06-26 Nokia Mobile Phones Ltd Verfahren zur Synthese eines Rahmens eines Sprachsignals
US5970444A (en) * 1997-03-13 1999-10-19 Nippon Telegraph And Telephone Corporation Speech coding method
US5924062A (en) * 1997-07-01 1999-07-13 Nokia Mobile Phones ACLEP codec with modified autocorrelation matrix storage and search
CA2254620A1 (fr) * 1998-01-13 1999-07-13 Lucent Technologies Inc. Vocodeur avec codage du vecteur d'excitation tolerant aux pannes
US6266412B1 (en) * 1998-06-15 2001-07-24 Lucent Technologies Inc. Encrypting speech coder
US6714907B2 (en) 1998-08-24 2004-03-30 Mindspeed Technologies, Inc. Codebook structure and search for speech coding
US6556966B1 (en) 1998-08-24 2003-04-29 Conexant Systems, Inc. Codebook structure for changeable pulse multimode speech coding
SE521225C2 (sv) * 1998-09-16 2003-10-14 Ericsson Telefon Ab L M Förfarande och anordning för CELP-kodning/avkodning
JP4005359B2 (ja) * 1999-09-14 2007-11-07 富士通株式会社 音声符号化及び音声復号化装置
EP1221162B1 (fr) 1999-09-30 2005-06-29 STMicroelectronics Asia Pacific Pte Ltd. Codeur audio g.723.1
JP3449339B2 (ja) * 2000-06-08 2003-09-22 日本電気株式会社 復号化装置および復号化方法
US7363219B2 (en) * 2000-09-22 2008-04-22 Texas Instruments Incorporated Hybrid speech coding and system
JP3449348B2 (ja) * 2000-09-29 2003-09-22 日本電気株式会社 相関行列学習方法および装置ならびに記憶媒体
JP3536921B2 (ja) * 2001-04-18 2004-06-14 日本電気株式会社 相関行列学習方法、装置及びプログラム
DE10140507A1 (de) * 2001-08-17 2003-02-27 Philips Corp Intellectual Pty Verfahren für die algebraische Codebook-Suche eines Sprachsignalkodierers
US7383283B2 (en) * 2001-10-16 2008-06-03 Joseph Carrabis Programable method and apparatus for real-time adaptation of presentations to individuals
US8195597B2 (en) * 2002-02-07 2012-06-05 Joseph Carrabis System and method for obtaining subtextual information regarding an interaction between an individual and a programmable device
US8655804B2 (en) 2002-02-07 2014-02-18 Next Stage Evolution, Llc System and method for determining a characteristic of an individual
JP4290917B2 (ja) * 2002-02-08 2009-07-08 株式会社エヌ・ティ・ティ・ドコモ 復号装置、符号化装置、復号方法、及び、符号化方法
US7003461B2 (en) * 2002-07-09 2006-02-21 Renesas Technology Corporation Method and apparatus for an adaptive codebook search in a speech processing system
EP1383109A1 (fr) * 2002-07-17 2004-01-21 STMicroelectronics N.V. Procédé et dispositif d'encodage de la parole à bande élargie
US7249014B2 (en) 2003-03-13 2007-07-24 Intel Corporation Apparatus, methods and articles incorporating a fast algebraic codebook search technique
GB0307752D0 (en) * 2003-04-03 2003-05-07 Seiko Epson Corp Apparatus for algebraic codebook search
FI118835B (fi) * 2004-02-23 2008-03-31 Nokia Corp Koodausmallin valinta
KR100668299B1 (ko) * 2004-05-12 2007-01-12 삼성전자주식회사 구간별 선형양자화를 이용한 디지털 신호 부호화/복호화방법 및 장치
SG123639A1 (en) 2004-12-31 2006-07-26 St Microelectronics Asia A system and method for supporting dual speech codecs
JP3981399B1 (ja) * 2006-03-10 2007-09-26 松下電器産業株式会社 固定符号帳探索装置および固定符号帳探索方法
KR101542069B1 (ko) * 2006-05-25 2015-08-06 삼성전자주식회사 고정 코드북 검색 방법 및 장치와 그를 이용한 음성 신호의부호화/복호화 방법 및 장치
EP2165328B1 (fr) 2007-06-11 2018-01-17 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Codeur et décodeur d'un signal audio ayant une partie de type impulsion et une partie stationnaire
JP5264913B2 (ja) * 2007-09-11 2013-08-14 ヴォイスエイジ・コーポレーション 話声およびオーディオの符号化における、代数符号帳の高速検索のための方法および装置
ATE518224T1 (de) 2008-01-04 2011-08-15 Dolby Int Ab Audiokodierer und -dekodierer
CN101615394B (zh) 2008-12-31 2011-02-16 华为技术有限公司 分配子帧的方法和装置
US9324331B2 (en) * 2011-01-14 2016-04-26 Panasonic Intellectual Property Corporation Of America Coding device, communication processing device, and coding method
CN102623012B (zh) * 2011-01-26 2014-08-20 华为技术有限公司 矢量联合编解码方法及编解码器
TR201818834T4 (tr) * 2012-10-05 2019-01-21 Fraunhofer Ges Forschung Otokorelasyon alanında acelp kullanan bir konuşma sinyalinin şifrelenmesine ilişkin bir ekipman.
EP2919232A1 (fr) * 2014-03-14 2015-09-16 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Codeur, décodeur et procédé de codage et de décodage

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1229681A (fr) * 1984-03-06 1987-11-24 Kazunori Ozawa Methode et appareil de codage de signaux dans la bande de frequences vocales
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
US4868867A (en) * 1987-04-06 1989-09-19 Voicecraft Inc. Vector excitation speech or audio coder for transmission or storage
US4899385A (en) * 1987-06-26 1990-02-06 American Telephone And Telegraph Company Code excited linear predictive vocoder
US4910781A (en) * 1987-06-26 1990-03-20 At&T Bell Laboratories Code excited linear predictive vocoder using virtual searching
CA2005115C (fr) * 1989-01-17 1997-04-22 Juin-Hwey Chen Codeur predictif lineaire excite par code a temps de retard bref pour les signaux vocaux ou audio
WO1990013112A1 (fr) * 1989-04-25 1990-11-01 Kabushiki Kaisha Toshiba Codeur vocal
CA2027705C (fr) * 1989-10-17 1994-02-15 Masami Akamine Systeme de codage de paroles utilisant un procede de calcul recursif afin d'ameliorer la vitesse de traitement
CA2010830C (fr) * 1990-02-23 1996-06-25 Jean-Pierre Adoul Regles de codage dynamique permettant un codage efficace des paroles au moyen de codes algebriques
US5195137A (en) * 1991-01-28 1993-03-16 At&T Bell Laboratories Method of and apparatus for generating auxiliary information for expediting sparse codebook search
US5495555A (en) * 1992-06-01 1996-02-27 Hughes Aircraft Company High quality low bit rate celp-based speech codec
FR2700632B1 (fr) * 1993-01-21 1995-03-24 France Telecom Système de codage-décodage prédictif d'un signal numérique de parole par transformée adaptative à codes imbriqués.

Also Published As

Publication number Publication date
FR2729245B1 (fr) 1997-04-11
JPH10502191A (ja) 1998-02-24
FR2729245A1 (fr) 1996-07-12
DE69604729D1 (de) 1999-11-25
KR970701901A (ko) 1997-04-12
DE69604729T2 (de) 2002-07-25
JP3481251B2 (ja) 2003-12-22
KR100389693B1 (ko) 2003-12-01
EP0749626B1 (fr) 1999-10-20
EP0749626A1 (fr) 1996-12-27
US5717825A (en) 1998-02-10
WO1996021221A1 (fr) 1996-07-11
CA2182386C (fr) 2003-09-09

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