CA2061832A1 - Methode et appareil de codage de parametres vocaux - Google Patents

Methode et appareil de codage de parametres vocaux

Info

Publication number
CA2061832A1
CA2061832A1 CA2061832A CA2061832A CA2061832A1 CA 2061832 A1 CA2061832 A1 CA 2061832A1 CA 2061832 A CA2061832 A CA 2061832A CA 2061832 A CA2061832 A CA 2061832A CA 2061832 A1 CA2061832 A1 CA 2061832A1
Authority
CA
Canada
Prior art keywords
order number
spectrum
coding method
codevectors
quantize
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
CA2061832A
Other languages
English (en)
Other versions
CA2061832C (fr
Inventor
Kazunori Ozawa
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.)
NEC Corp
Original Assignee
Kazunori Ozawa
Nec Corporation
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 Kazunori Ozawa, Nec Corporation filed Critical Kazunori Ozawa
Publication of CA2061832A1 publication Critical patent/CA2061832A1/fr
Application granted granted Critical
Publication of CA2061832C publication Critical patent/CA2061832C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G10L19/02—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 spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/032—Quantisation or dequantisation of spectral components
    • G10L19/038—Vector quantisation, e.g. TwinVQ audio
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/3082—Vector coding
    • 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
    • G10L2019/0004—Design or structure of the codebook
    • G10L2019/0005—Multi-stage vector quantisation
CA002061832A 1991-02-26 1992-02-25 Methode et appareil de codage de parametres vocaux Expired - Lifetime CA2061832C (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP103267/1991 1991-02-26
JP10326791 1991-02-26
JP261925/1991 1991-10-09
JP26192591A JP3151874B2 (ja) 1991-02-26 1991-10-09 音声パラメータ符号化方式および装置
US07/841,726 US5487128A (en) 1991-02-26 1992-02-26 Speech parameter coding method and appparatus

Publications (2)

Publication Number Publication Date
CA2061832A1 true CA2061832A1 (fr) 1992-08-27
CA2061832C CA2061832C (fr) 1996-04-30

Family

ID=27309938

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002061832A Expired - Lifetime CA2061832C (fr) 1991-02-26 1992-02-25 Methode et appareil de codage de parametres vocaux

Country Status (4)

Country Link
US (1) US5487128A (fr)
EP (1) EP0504627B1 (fr)
JP (1) JP3151874B2 (fr)
CA (1) CA2061832C (fr)

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JPH09281995A (ja) * 1996-04-12 1997-10-31 Nec Corp 信号符号化装置及び方法
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JP3335841B2 (ja) * 1996-05-27 2002-10-21 日本電気株式会社 信号符号化装置
CA2213909C (fr) * 1996-08-26 2002-01-22 Nec Corporation Codeur de paroles haute qualite utilisant de faibles debits binaires
US6192336B1 (en) * 1996-09-30 2001-02-20 Apple Computer, Inc. Method and system for searching for an optimal codevector
KR100389897B1 (ko) * 1996-10-31 2003-10-17 삼성전자주식회사 분할된 lsf 벡터의 예측-연결 양자화 방법
JP3266178B2 (ja) * 1996-12-18 2002-03-18 日本電気株式会社 音声符号化装置
US5902244A (en) * 1997-02-05 1999-05-11 Olympus Optical Co., Ltd. Ultrasonic diagnosis apparatus including simple digital scan converter
JP3067676B2 (ja) * 1997-02-13 2000-07-17 日本電気株式会社 Ｌｓｐの予測符号化装置及び方法
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JP3180762B2 (ja) 1998-05-11 2001-06-25 日本電気株式会社 音声符号化装置及び音声復号化装置
CA2336360C (fr) 1998-06-30 2006-08-01 Nec Corporation Codeur vocal
JP3319396B2 (ja) 1998-07-13 2002-08-26 日本電気株式会社 音声符号化装置ならびに音声符号化復号化装置
SE521225C2 (sv) * 1998-09-16 2003-10-14 Ericsson Telefon Ab L M Förfarande och anordning för CELP-kodning/avkodning
DE19845888A1 (de) * 1998-10-06 2000-05-11 Bosch Gmbh Robert Verfahren zur Codierung oder Decodierung von Sprachsignalabtastwerten sowie Coder bzw. Decoder
JP3180786B2 (ja) 1998-11-27 2001-06-25 日本電気株式会社 音声符号化方法及び音声符号化装置
SE9804455L (sv) * 1998-12-21 2000-06-22 Ericsson Telefon Ab L M Förfarande och arrangemang för att finna en optimal rekonstruktionspunkt
JP3426207B2 (ja) * 2000-10-26 2003-07-14 三菱電機株式会社 音声符号化方法および装置
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
AU2003267713A1 (en) * 2002-10-03 2004-04-23 Koninklijke Philips Electronics N.V. Encoding and decoding a media signal
US8352248B2 (en) * 2003-01-03 2013-01-08 Marvell International Ltd. Speech compression method and apparatus
KR100651712B1 (ko) * 2003-07-10 2006-11-30 학교법인연세대학교 광대역 음성 부호화기 및 그 방법과 광대역 음성 복호화기및 그 방법
US20090198491A1 (en) * 2006-05-12 2009-08-06 Panasonic Corporation Lsp vector quantization apparatus, lsp vector inverse-quantization apparatus, and their methods
JP5253518B2 (ja) * 2008-12-22 2013-07-31 日本電信電話株式会社 符号化方法、復号方法、それらの装置、プログラム及び記録媒体
TW201220715A (en) * 2010-09-17 2012-05-16 Panasonic Corp Quantization device and quantization method
US9588155B2 (en) * 2014-10-16 2017-03-07 Freescale Semiconductor, Inc. Current detection circuit with over-current protection
JP6640896B2 (ja) * 2018-02-15 2020-02-05 株式会社東芝 データ処理装置、データ処理方法およびプログラム

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CA1323934C (fr) * 1986-04-15 1993-11-02 Tetsu Taguchi Appareil de traitement de paroles
GB2210236B (en) * 1987-09-24 1991-12-18 Newbridge Networks Corp Speech processing system
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CA1333420C (fr) * 1988-02-29 1994-12-06 Tokumichi Murakami Quantificateur vectoriel
JP2625998B2 (ja) * 1988-12-09 1997-07-02 沖電気工業株式会社 特徴抽出方式
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JP3256215B2 (ja) * 1990-02-22 2002-02-12 日本電気株式会社 音声符号化装置
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US5271089A (en) * 1990-11-02 1993-12-14 Nec Corporation Speech parameter encoding method capable of transmitting a spectrum parameter at a reduced number of bits

Also Published As

Publication number Publication date
EP0504627B1 (fr) 1999-09-15
CA2061832C (fr) 1996-04-30
JPH04363000A (ja) 1992-12-15
JP3151874B2 (ja) 2001-04-03
US5487128A (en) 1996-01-23
EP0504627A3 (en) 1993-02-24
EP0504627A2 (fr) 1992-09-23

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