JP3112681B2 - 音声符号化方式 - Google Patents

音声符号化方式

Info

Publication number
JP3112681B2
JP3112681B2 JP03515016A JP51501691A JP3112681B2 JP 3112681 B2 JP3112681 B2 JP 3112681B2 JP 03515016 A JP03515016 A JP 03515016A JP 51501691 A JP51501691 A JP 51501691A JP 3112681 B2 JP3112681 B2 JP 3112681B2
Authority
JP
Japan
Prior art keywords
vector
code
vectors
delta
codebook
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
JP03515016A
Other languages
English (en)
Japanese (ja)
Other versions
JPWO1992005541A1 (ja
Inventor
智彦 谷口
ジョンソン マーク
恭士 大田
秀明 栗原
良紀 田中
良広 坂井
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
Priority claimed from JP3127669A external-priority patent/JPH04352200A/ja
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Publication of JPWO1992005541A1 publication Critical patent/JPWO1992005541A1/ja
Application granted granted Critical
Publication of JP3112681B2 publication Critical patent/JP3112681B2/ja
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
    • G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] vocoders
    • 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
    • G10L2019/0007—Codebook element generation
    • 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
    • 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
    • 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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
    • G10L25/06—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being correlation coefficients

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
JP03515016A 1990-09-14 1991-09-17 音声符号化方式 Expired - Fee Related JP3112681B2 (ja)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP24417490 1990-09-14
JP2-244174 1990-09-14
JP3-127669 1991-05-30
JP3127669A JPH04352200A (ja) 1991-05-30 1991-05-30 音声符号化方式
PCT/JP1991/001235 WO1992005541A1 (en) 1990-09-14 1991-09-17 Voice coding system

Publications (2)

Publication Number Publication Date
JPWO1992005541A1 JPWO1992005541A1 (ja) 1992-10-01
JP3112681B2 true JP3112681B2 (ja) 2000-11-27

Family

ID=26463564

Family Applications (1)

Application Number Title Priority Date Filing Date
JP03515016A Expired - Fee Related JP3112681B2 (ja) 1990-09-14 1991-09-17 音声符号化方式

Country Status (6)

Country Link
US (1) US5323486A (2)
EP (1) EP0500961B1 (2)
JP (1) JP3112681B2 (2)
CA (1) CA2068526C (2)
DE (1) DE69129329T2 (2)
WO (1) WO1992005541A1 (2)

Families Citing this family (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992005541A1 (en) 1990-09-14 1992-04-02 Fujitsu Limited Voice coding system
JP3077944B2 (ja) * 1990-11-28 2000-08-21 シャープ株式会社 信号再生装置
GB2266822B (en) * 1990-12-21 1995-05-10 British Telecomm Speech coding
US5671327A (en) * 1991-10-21 1997-09-23 Kabushiki Kaisha Toshiba Speech encoding apparatus utilizing stored code data
JP3071012B2 (ja) 1991-12-09 2000-07-31 富士通株式会社 音声伝送方式
US5864650A (en) * 1992-09-16 1999-01-26 Fujitsu Limited Speech encoding method and apparatus using tree-structure delta code book
IT1257431B (it) * 1992-12-04 1996-01-16 Sip Procedimento e dispositivo per la quantizzazione dei guadagni dell'eccitazione in codificatori della voce basati su tecniche di analisi per sintesi
CA2102080C (en) * 1992-12-14 1998-07-28 Willem Bastiaan Kleijn Time shifting for generalized analysis-by-synthesis coding
JP2591430B2 (ja) * 1993-06-30 1997-03-19 日本電気株式会社 ベクトル量子化装置
JP2626492B2 (ja) * 1993-09-13 1997-07-02 日本電気株式会社 ベクトル量子化装置
US5462879A (en) * 1993-10-14 1995-10-31 Minnesota Mining And Manufacturing Company Method of sensing with emission quenching sensors
CA2137756C (en) * 1993-12-10 2000-02-01 Kazunori Ozawa Voice coder and a method for searching codebooks
JPH07168913A (ja) * 1993-12-14 1995-07-04 Chugoku Nippon Denki Software Kk 文字認識システム
JP3119063B2 (ja) * 1994-01-11 2000-12-18 富士通株式会社 符号情報処理方式並びにその符号装置及び復号装置
JP2956473B2 (ja) * 1994-04-21 1999-10-04 日本電気株式会社 ベクトル量子化装置
US5704003A (en) * 1995-09-19 1997-12-30 Lucent Technologies Inc. RCELP coder
DE69629485T2 (de) * 1995-10-20 2004-06-09 America Online, Inc. Kompressionsystem für sich wiederholende töne
AU767779B2 (en) * 1995-10-20 2003-11-27 Facebook, Inc. Repetitive sound compression system
JP3680380B2 (ja) * 1995-10-26 2005-08-10 ソニー株式会社 音声符号化方法及び装置
JP3707116B2 (ja) * 1995-10-26 2005-10-19 ソニー株式会社 音声復号化方法及び装置
TW317051B (2) * 1996-02-15 1997-10-01 Philips Electronics Nv
JP3970327B2 (ja) * 1996-02-15 2007-09-05 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴイ 複雑さが軽減された信号送信システム
US6038528A (en) * 1996-07-17 2000-03-14 T-Netix, Inc. Robust speech processing with affine transform replicated data
US6192336B1 (en) * 1996-09-30 2001-02-20 Apple Computer, Inc. Method and system for searching for an optimal codevector
US6161086A (en) * 1997-07-29 2000-12-12 Texas Instruments Incorporated Low-complexity speech coding with backward and inverse filtered target matching and a tree structured mutitap adaptive codebook search
US6493665B1 (en) * 1998-08-24 2002-12-10 Conexant Systems, Inc. Speech classification and parameter weighting used in codebook search
US6556966B1 (en) * 1998-08-24 2003-04-29 Conexant Systems, Inc. Codebook structure for changeable pulse multimode speech coding
US6823303B1 (en) * 1998-08-24 2004-11-23 Conexant Systems, Inc. Speech encoder using voice activity detection in coding noise
US6173257B1 (en) * 1998-08-24 2001-01-09 Conexant Systems, Inc Completed fixed codebook for speech encoder
US6714907B2 (en) 1998-08-24 2004-03-30 Mindspeed Technologies, Inc. Codebook structure and search for speech coding
US6480822B2 (en) * 1998-08-24 2002-11-12 Conexant Systems, Inc. Low complexity random codebook structure
US6212496B1 (en) 1998-10-13 2001-04-03 Denso Corporation, Ltd. Customizing audio output to a user's hearing in a digital telephone
US6850884B2 (en) * 2000-09-15 2005-02-01 Mindspeed Technologies, Inc. Selection of coding parameters based on spectral content of a speech signal
US6842733B1 (en) 2000-09-15 2005-01-11 Mindspeed Technologies, Inc. Signal processing system for filtering spectral content of a signal for speech coding
DE60126149T8 (de) * 2000-11-27 2008-01-31 Nippon Telegraph And Telephone Corp. Verfahren, einrichtung und programm zum codieren und decodieren eines akustischen parameters und verfahren, einrichtung und programm zum codieren und decodieren von klängen
EP1688917A1 (en) * 2003-12-26 2006-08-09 Matsushita Electric Industries Co., Ltd. Voice/musical sound encoding device and voice/musical sound encoding method
KR20080052813A (ko) * 2006-12-08 2008-06-12 한국전자통신연구원 채널별 신호 분포 특성을 반영한 오디오 코딩 장치 및 방법

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5323486A (en) 1990-09-14 1994-06-21 Fujitsu Limited Speech coding system having codebook storing differential vectors between each two adjoining code vectors

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61237519A (ja) * 1985-04-12 1986-10-22 Mitsubishi Electric Corp フレ−ム間適応ベクトル量子化符号化装置
JPS63240600A (ja) * 1987-03-28 1988-10-06 松下電器産業株式会社 ベクトル量子化方法
US4868867A (en) * 1987-04-06 1989-09-19 Voicecraft Inc. Vector excitation speech or audio coder for transmission or storage
CA1337217C (en) * 1987-08-28 1995-10-03 Daniel Kenneth Freeman Speech coding
DE3871369D1 (de) * 1988-03-08 1992-06-25 Ibm Verfahren und einrichtung zur sprachkodierung mit niedriger datenrate.
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
US5144671A (en) * 1990-03-15 1992-09-01 Gte Laboratories Incorporated Method for reducing the search complexity in analysis-by-synthesis coding

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5323486A (en) 1990-09-14 1994-06-21 Fujitsu Limited Speech coding system having codebook storing differential vectors between each two adjoining code vectors

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
Ｐｒｏｃｅｅｄｉｎｇｓ ｏｆ １９９１ ＩＥＥＥ Ｉｎｔｅｒｎａｔｉｏｎａｌ Ｓｙｍｐｏｓｉｕｍ ｏｎ Ｃｉｒｃｕｉｔｓ ａｎｄ Ｓｙｓｔｅｍｓ，Ｖｏｌ．１，Ｔ．Ｔａｎｉｇｕｃｈｉ ｅｔ ａｌ，"Ｉｍｐｒｏｖｉｎｇ ｔｈｅ Ｐｅｒｆｏｒｍａｎｃｅ ｏｆ ＣＥＬＰ−Ｂａｓｅｄ Ｓｐｅｅｃｈ Ｃｏｄｉｎｇ ａｔ Ｌｏｗ Ｂｉｔ Ｒａｔｅｓ"，ｐ．５９０−５９３，１１−１４ Ｊｕｎｅ １９９１
Ｐｒｏｃｅｅｄｉｎｇｓ ｏｆ ＩＥＥＥ １９９１ Ｉｎｔｅｒｎａｔｉｏｎａｌ Ｃｏｎｆｅｒｅｎｃｅ ｏｎ Ａｃｏｕｓｔｉｃｓ，Ｓｐｅｅｃｈ ａｎｄ Ｓｉｇｎａｌ Ｐｒｏｃｅｓｓｉｎｇ，Ｖｏｌ．１，Ｔ．Ｔａｎｉｇｕｃｈｉ ｅｔ ａｌ，"Ｐｉｔｃｈ Ｓｈａｒｐｅｎｉｎｇ ｆｏｒ Ｐｅｒｃｅｐｔｕａｌｌｙ Ｉｍｐｒｏｖｅｄ ＣＥＬＰ，ａｎｄ ｔｈｅ Ｓｐａｒｓｅ−Ｄｅｌｔａ Ｃｏｄｅｂｏｏｋ ｆｏｒ Ｒｅｄｕｃｅｄ Ｃｏｍｐｕｔａｔｉｏｎ"ｐ．２４１−２４４，Ｍａｙ １４−１７，１９９１
Ｐｒｏｃｅｅｄｉｎｇｓ ｏｆ ＩＥＥＥ １９９２ Ｉｎｔｅｒｎａｔｉｏｎａｌ Ｃｏｎｆｅｒｅｎｃｅ ｏｎ Ａｃｏｕｓｔｉｃｓ，Ｓｐｅｅｃｈ ａｎｄ Ｓｉｇｎａｌ Ｐｒｏｃｅｓｓｉｎｇ，Ｖｏｌ．１，Ｔ．Ｔａｎｉｇｕｃｈｉ ｅｔ ａｌ，"Ｔｒｅｅ−Ｓｔｒｕｃｔｕｒｅｄ Ｄｅｌｔａ Ｃｏｄｅｂｏｏｋ ｆｏｒ ａｎ Ｅｆｆｉｃｉｅｎｔ Ｉｍｐｌｅｍｅｎｔａｔｉｏｎ ｏｆ ＣＥＬＰ"ｐ．Ｉ−３２５〜Ｉ−３２８，Ｍａｒｃｈ ２３−２６，１９９２

Also Published As

Publication number Publication date
WO1992005541A1 (en) 1992-04-02
EP0500961A4 (2) 1995-01-11
US5323486A (en) 1994-06-21
CA2068526C (en) 1997-02-25
DE69129329D1 (de) 1998-06-04
EP0500961B1 (en) 1998-04-29
EP0500961A1 (en) 1992-09-02
CA2068526A1 (en) 1992-03-15
DE69129329T2 (de) 1998-09-24

Similar Documents

Publication Publication Date Title
JP3112681B2 (ja) 音声符号化方式
US5327519A (en) Pulse pattern excited linear prediction voice coder
US5717824A (en) Adaptive speech coder having code excited linear predictor with multiple codebook searches
US4868867A (en) Vector excitation speech or audio coder for transmission or storage
JPWO1992005541A1 (ja) 音声符号化方式
CA2430111C (en) Speech parameter coding and decoding methods, coder and decoder, and programs, and speech coding and decoding methods, coder and decoder, and programs
WO2001020595A1 (fr) Codeur/decodeur vocal
KR19980080463A (ko) 코드여기 선형예측 음성코더내에서의 벡터 양자화 방법
JPH04264500A (ja) 音声信号伝送方法および音声信号伝送装置
JPH0771045B2 (ja) 音声符号化方法、音声復号方法、およびこれらを使用した通信方法
JP3531935B2 (ja) 音声符号化方法及び装置
US5864650A (en) Speech encoding method and apparatus using tree-structure delta code book
KR100465316B1 (ko) 음성 부호화기 및 이를 이용한 음성 부호화 방법
JPWO1994007239A1 (ja) 音声符号化方法及び装置
JP3916934B2 (ja) 音響パラメータ符号化、復号化方法、装置及びプログラム、音響信号符号化、復号化方法、装置及びプログラム、音響信号送信装置、音響信号受信装置
JPH0784600A (ja) ベクトル量子化装置
JPH096396A (ja) 音響信号符号化方法及び音響信号復号化方法
JP2943983B1 (ja) 音響信号の符号化方法、復号方法、そのプログラム記録媒体、およびこれに用いる符号帳
Xydeas et al. Theory and Real Time Implementation of a CELP Coder at 4.8 and 6.0 kbits/second Using Ternary Code Excitation
JP3071012B2 (ja) 音声伝送方式
JP3233184B2 (ja) 音声符号化方法
JP3192051B2 (ja) 音声符号化装置
JP2947788B1 (ja) 音声および音響信号の高速な符号化方法および装置および記録媒体
GB2199215A (en) A stochastic coder
JP4228630B2 (ja) 音声符号化装置および音声符号化プログラム

Legal Events

Date Code Title Description
FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20080922

Year of fee payment: 8

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20080922

Year of fee payment: 8

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20090922

Year of fee payment: 9

LAPS Cancellation because of no payment of annual fees