CA2044751A1 - Systeme de codage de paroles - Google Patents

Systeme de codage de paroles

Info

Publication number
CA2044751A1
CA2044751A1 CA2044751A CA2044751A CA2044751A1 CA 2044751 A1 CA2044751 A1 CA 2044751A1 CA 2044751 A CA2044751 A CA 2044751A CA 2044751 A CA2044751 A CA 2044751A CA 2044751 A1 CA2044751 A1 CA 2044751A1
Authority
CA
Canada
Prior art keywords
code
vector
code vectors
sparse
gain
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
CA2044751A
Other languages
English (en)
Other versions
CA2044751C (fr
Inventor
Tomohiko Taniguchi
Mark Johnson
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.)
Fujitsu Ltd
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2044751A1 publication Critical patent/CA2044751A1/fr
Application granted granted Critical
Publication of CA2044751C publication Critical patent/CA2044751C/fr
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
    • G10L19/10—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
    • G10L2019/0002—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
    • G10L2019/0003—Backward prediction of gain
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Algebra (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
CA002044751A 1990-06-18 1991-06-17 Systeme de codage de paroles Expired - Fee Related CA2044751C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2161042A JPH0451200A (ja) 1990-06-18 1990-06-18 音声符号化方式
JP2-161042 1990-06-18

Publications (2)

Publication Number Publication Date
CA2044751A1 true CA2044751A1 (fr) 1991-12-19
CA2044751C CA2044751C (fr) 1996-01-16

Family

ID=15727495

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002044751A Expired - Fee Related CA2044751C (fr) 1990-06-18 1991-06-17 Systeme de codage de paroles

Country Status (5)

Country Link
US (1) US5245662A (fr)
EP (1) EP0462558B1 (fr)
JP (1) JPH0451200A (fr)
CA (1) CA2044751C (fr)
DE (1) DE69129385T2 (fr)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2051304C (fr) * 1990-09-18 1996-03-05 Tomohiko Taniguchi Systeme de codage et de decodage de paroles
JP3077944B2 (ja) * 1990-11-28 2000-08-21 シャープ株式会社 信号再生装置
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
AU675322B2 (en) * 1993-04-29 1997-01-30 Unisearch Limited Use of an auditory model to improve quality or lower the bit rate of speech synthesis systems
AU5095193A (en) * 1993-08-27 1995-03-21 Pacific Communication Sciences, Inc. Adaptive speech coder having code excited linear prediction
US5488665A (en) * 1993-11-23 1996-01-30 At&T Corp. Multi-channel perceptual audio compression system with encoding mode switching among matrixed channels
KR960009530B1 (en) * 1993-12-20 1996-07-20 Korea Electronics Telecomm Method for shortening processing time in pitch checking method for vocoder
US5797118A (en) * 1994-08-09 1998-08-18 Yamaha Corporation Learning vector quantization and a temporary memory such that the codebook contents are renewed when a first speaker returns
DE69629485T2 (de) * 1995-10-20 2004-06-09 America Online, Inc. Kompressionsystem für sich wiederholende töne
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
WO1999021174A1 (fr) 1997-10-22 1999-04-29 Matsushita Electric Industrial Co., Ltd. Codeur de sons et decodeur de sons
DE69736446T2 (de) 1997-12-24 2007-03-29 Mitsubishi Denki K.K. Audio Dekodierverfahren und -vorrichtung
US7072832B1 (en) 1998-08-24 2006-07-04 Mindspeed Technologies, Inc. System for speech encoding having an adaptive encoding arrangement
US6584437B2 (en) 2001-06-11 2003-06-24 Nokia Mobile Phones Ltd. Method and apparatus for coding successive pitch periods in speech signal
JP4722782B2 (ja) * 2006-06-30 2011-07-13 株式会社日立ハイテクインスツルメンツ プリント基板支持装置
JP5159279B2 (ja) * 2007-12-03 2013-03-06 株式会社東芝 音声処理装置及びそれを用いた音声合成装置。
ES2924180T3 (es) * 2009-12-14 2022-10-05 Fraunhofer Ges Forschung Dispositivo de cuantificación vectorial, dispositivo de codificación de habla, procedimiento de cuantificación vectorial y procedimiento de codificación de habla
CN113948085B (zh) * 2021-12-22 2022-03-25 中国科学院自动化研究所 语音识别方法、系统、电子设备和存储介质

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL94119A (en) * 1989-06-23 1996-06-18 Motorola Inc Digital speech coder

Also Published As

Publication number Publication date
EP0462558A3 (en) 1992-08-12
DE69129385T2 (de) 1998-10-08
DE69129385D1 (de) 1998-06-18
US5245662A (en) 1993-09-14
EP0462558A2 (fr) 1991-12-27
JPH0451200A (ja) 1992-02-19
EP0462558B1 (fr) 1998-05-13
CA2044751C (fr) 1996-01-16

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Effective date: 20060619