DE69129385T2 - Sprachkodiersystem - Google Patents

Sprachkodiersystem

Info

Publication number
DE69129385T2
DE69129385T2 DE69129385T DE69129385T DE69129385T2 DE 69129385 T2 DE69129385 T2 DE 69129385T2 DE 69129385 T DE69129385 T DE 69129385T DE 69129385 T DE69129385 T DE 69129385T DE 69129385 T2 DE69129385 T2 DE 69129385T2
Authority
DE
Germany
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.)
Expired - Fee Related
Application number
DE69129385T
Other languages
English (en)
Other versions
DE69129385D1 (de
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
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Application granted granted Critical
Publication of DE69129385D1 publication Critical patent/DE69129385D1/de
Publication of DE69129385T2 publication Critical patent/DE69129385T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G10L19/08—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 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
    • G10L2019/0001—Codebooks
    • G10L2019/0002—Codebook adaptations
    • 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
    • G10L2019/0001—Codebooks
    • G10L2019/0003—Backward prediction of gain
    • 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
    • G10L2019/0001—Codebooks
    • G10L2019/0011—Long term prediction filters, i.e. pitch estimation
DE69129385T 1990-06-18 1991-06-18 Sprachkodiersystem Expired - Fee Related DE69129385T2 (de)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
DE69129385D1 DE69129385D1 (de) 1998-06-18
DE69129385T2 true DE69129385T2 (de) 1998-10-08

Family

ID=15727495

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69129385T Expired - Fee Related DE69129385T2 (de) 1990-06-18 1991-06-18 Sprachkodiersystem

Country Status (5)

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

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2051304C (en) * 1990-09-18 1996-03-05 Tomohiko Taniguchi Speech coding and decoding system
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
EP0803117A1 (de) * 1993-08-27 1997-10-29 Pacific Communication Sciences, Inc. Adaptiver sprachkodierer mit code-angeregter linearer praediktion
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
EP0856185B1 (de) * 1995-10-20 2003-08-13 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
EP1734512B1 (de) 1997-10-22 2015-09-09 Godo Kaisha IP Bridge 1 CELP Kodierer und Verfahren für die CELP Kodierung
CA2636552C (en) * 1997-12-24 2011-03-01 Mitsubishi Denki Kabushiki Kaisha A method for speech coding, method for speech decoding and their apparatuses
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。
WO2011074233A1 (ja) * 2009-12-14 2011-06-23 パナソニック株式会社 ベクトル量子化装置、音声符号化装置、ベクトル量子化方法、及び音声符号化方法
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 voice recorder

Also Published As

Publication number Publication date
EP0462558A3 (en) 1992-08-12
EP0462558B1 (de) 1998-05-13
US5245662A (en) 1993-09-14
CA2044751C (en) 1996-01-16
EP0462558A2 (de) 1991-12-27
JPH0451200A (ja) 1992-02-19
DE69129385D1 (de) 1998-06-18
CA2044751A1 (en) 1991-12-19

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee