JP3063668B2 - 音声符号化装置及び復号装置 - Google Patents

音声符号化装置及び復号装置

Info

Publication number
JP3063668B2
JP3063668B2 JP9086663A JP8666397A JP3063668B2 JP 3063668 B2 JP3063668 B2 JP 3063668B2 JP 9086663 A JP9086663 A JP 9086663A JP 8666397 A JP8666397 A JP 8666397A JP 3063668 B2 JP3063668 B2 JP 3063668B2
Authority
JP
Japan
Prior art keywords
pulse
signal
auxiliary
decoding
pulse position
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 - Lifetime
Application number
JP9086663A
Other languages
English (en)
Japanese (ja)
Other versions
JPH10282997A (ja
Inventor
俊之 野村
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
NEC Corp
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 NEC Corp filed Critical NEC Corp
Priority to JP9086663A priority Critical patent/JP3063668B2/ja
Priority to CA002233146A priority patent/CA2233146C/en
Priority to US09/053,606 priority patent/US6192334B1/en
Priority to DE69837296T priority patent/DE69837296T2/de
Priority to EP04090222A priority patent/EP1473710B1/en
Priority to DE69830816T priority patent/DE69830816T2/de
Priority to EP98250117A priority patent/EP0869477B1/en
Publication of JPH10282997A publication Critical patent/JPH10282997A/ja
Application granted granted Critical
Publication of JP3063668B2 publication Critical patent/JP3063668B2/ja
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
    • G10L19/04—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
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • 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
    • 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
JP9086663A 1997-04-04 1997-04-04 音声符号化装置及び復号装置 Expired - Lifetime JP3063668B2 (ja)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP9086663A JP3063668B2 (ja) 1997-04-04 1997-04-04 音声符号化装置及び復号装置
CA002233146A CA2233146C (en) 1997-04-04 1998-03-26 Audio encoding apparatus and audio decoding apparatus
US09/053,606 US6192334B1 (en) 1997-04-04 1998-04-01 Audio encoding apparatus and audio decoding apparatus for encoding in multiple stages a multi-pulse signal
EP04090222A EP1473710B1 (en) 1997-04-04 1998-04-02 Multistage multipulse excitation audio encoding apparatus and method
DE69837296T DE69837296T2 (de) 1997-04-04 1998-04-02 Verfahren und Vorrichtung zur Audiokodierung mittels einer mehrstufigen Mehrimpulsanregung
DE69830816T DE69830816T2 (de) 1997-04-04 1998-04-02 Mehrstufige Audiodekodierung
EP98250117A EP0869477B1 (en) 1997-04-04 1998-04-02 Multiple stage audio decoding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9086663A JP3063668B2 (ja) 1997-04-04 1997-04-04 音声符号化装置及び復号装置

Publications (2)

Publication Number Publication Date
JPH10282997A JPH10282997A (ja) 1998-10-23
JP3063668B2 true JP3063668B2 (ja) 2000-07-12

Family

ID=13893282

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9086663A Expired - Lifetime JP3063668B2 (ja) 1997-04-04 1997-04-04 音声符号化装置及び復号装置

Country Status (5)

Country Link
US (1) US6192334B1 (US06192334-20010220-M00012.png)
EP (2) EP0869477B1 (US06192334-20010220-M00012.png)
JP (1) JP3063668B2 (US06192334-20010220-M00012.png)
CA (1) CA2233146C (US06192334-20010220-M00012.png)
DE (2) DE69830816T2 (US06192334-20010220-M00012.png)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2252170A1 (en) * 1998-10-27 2000-04-27 Bruno Bessette A method and device for high quality coding of wideband speech and audio signals
AU4993200A (en) * 1999-05-06 2000-11-21 Sandia Corporation Fuel cell and membrane
US6236960B1 (en) * 1999-08-06 2001-05-22 Motorola, Inc. Factorial packing method and apparatus for information coding
JP4304360B2 (ja) * 2002-05-22 2009-07-29 日本電気株式会社 音声符号化復号方式間の符号変換方法および装置とその記憶媒体
JP4789430B2 (ja) * 2004-06-25 2011-10-12 パナソニック株式会社 音声符号化装置、音声復号化装置、およびこれらの方法
US8265929B2 (en) * 2004-12-08 2012-09-11 Electronics And Telecommunications Research Institute Embedded code-excited linear prediction speech coding and decoding apparatus and method
CN101138022B (zh) * 2005-03-09 2011-08-10 艾利森电话股份有限公司 低复杂度码激励线性预测编码及解码的方法及装置
US8000967B2 (en) 2005-03-09 2011-08-16 Telefonaktiebolaget Lm Ericsson (Publ) Low-complexity code excited linear prediction encoding
MX2009009229A (es) * 2007-03-02 2009-09-08 Panasonic Corp Dispositivo de codificacion y metodo de codificacion.
JP4871894B2 (ja) * 2007-03-02 2012-02-08 パナソニック株式会社 符号化装置、復号装置、符号化方法および復号方法
JP5403949B2 (ja) * 2007-03-02 2014-01-29 パナソニック株式会社 符号化装置および符号化方法
US7889103B2 (en) * 2008-03-13 2011-02-15 Motorola Mobility, Inc. Method and apparatus for low complexity combinatorial coding of signals
EP2267699A4 (en) * 2008-04-09 2012-03-07 Panasonic Corp ENCODING DEVICE AND ENCODING METHOD

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3024467B2 (ja) 1993-12-10 2000-03-21 日本電気株式会社 音声符号化装置

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4890327A (en) * 1987-06-03 1989-12-26 Itt Corporation Multi-rate digital voice coder apparatus
SE463691B (sv) 1989-05-11 1991-01-07 Ericsson Telefon Ab L M Foerfarande att utplacera excitationspulser foer en lineaerprediktiv kodare (lpc) som arbetar enligt multipulsprincipen
US5060269A (en) * 1989-05-18 1991-10-22 General Electric Company Hybrid switched multi-pulse/stochastic speech coding technique
US5091945A (en) * 1989-09-28 1992-02-25 At&T Bell Laboratories Source dependent channel coding with error protection
US4980916A (en) * 1989-10-26 1990-12-25 General Electric Company Method for improving speech quality in code excited linear predictive speech coding
US5307441A (en) * 1989-11-29 1994-04-26 Comsat Corporation Wear-toll quality 4.8 kbps speech codec
US5097507A (en) * 1989-12-22 1992-03-17 General Electric Company Fading bit error protection for digital cellular multi-pulse speech coder
JP3114197B2 (ja) 1990-11-02 2000-12-04 日本電気株式会社 音声パラメータ符号化方法
US5138661A (en) * 1990-11-13 1992-08-11 General Electric Company Linear predictive codeword excited speech synthesizer
US5127053A (en) * 1990-12-24 1992-06-30 General Electric Company Low-complexity method for improving the performance of autocorrelation-based pitch detectors
CA2137756C (en) * 1993-12-10 2000-02-01 Kazunori Ozawa Voice coder and a method for searching codebooks
AU696092B2 (en) * 1995-01-12 1998-09-03 Digital Voice Systems, Inc. Estimation of excitation parameters

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3024467B2 (ja) 1993-12-10 2000-03-21 日本電気株式会社 音声符号化装置

Non-Patent Citations (6)

* Cited by examiner, † Cited by third party
Title
Ｐｒｏｃｅｅｄｉｎｇｓ ｏｆ ＩＥＥＥ １９９１ Ｉｎｔｅｒｎａｔｉｏｎａｌ Ｃｏｎｆｅｒｅｎｃｅ ｏｎ Ａｃｏｕｓｔｉｃｓ，Ｓｐｅｅｃｈ ａｎｄ Ｓｉｇｎａｌ Ｐｒｏｃｅｓｓｉｎｇ，Ｖｏｌ．１，"Ｓ９．２９ Ｅｍｂｅｄｄｅｄ ＣＥＬＰ Ｃｏｄｉｎｇ ｆｏｒ Ｖａｒｉａｂｌｅ Ｂｉｔ−Ｒａｔｅ Ｂｅｔｗｅｅｎ ６．４ ａｎｄ ９．６ ｋｂｉｔ／ｓ" ｐ．６８１−６８４
日本音響学会平成８年度春季研究発表会講演論文集 １−４−２２「マルチパルスベクトル量子化と位置の高速探索を用いるＭＰ−ＣＥＬＰ音声符号化の検討」ｐ．２６１−２６２（平成８年３月２６日発行）
日本音響学会平成８年度春季研究発表会講演論文集 ２−Ｐ−５「ＣＥＬＰにおけるパルス励振源の効率的な探索」ｐ．３１１−３１２（平成８年３月２６日発行）
日本音響学会平成９年度秋季研究発表会講演論文集 ３−２−６「ＡＭＲ標準化向けマルチレートＭＰ−ＣＥＬＰの音質評価」ｐ．２７７−２７８（平成９年９月１７日発行）
電子情報通信学会１９９７年総合大会講演論文集，情報・システム１，ＳＤ−５−３，「ビットレート制御可能なＭＰ−ＣＥＬＰ音声符号化方式」，ｐ．３４８−３４９，（１９９７年３月６日発行）
電子情報通信学会論文誌，Ｖｏｌ．Ｊ７９−Ａ Ｎｏ．１０，Ｏｃｔｏｂｅｒ １９９６，「マルチパルスベクトル量子化音源と高速探索に基づくＭＰ−ＣＥＬＰ音声符号化」，ｐ．１６５５−１６６３（平成８年１０月２５日発行）

Also Published As

Publication number Publication date
CA2233146A1 (en) 1998-10-04
DE69830816T2 (de) 2006-04-20
EP0869477B1 (en) 2005-07-13
EP0869477A3 (en) 1999-04-21
EP0869477A2 (en) 1998-10-07
EP1473710A1 (en) 2004-11-03
US6192334B1 (en) 2001-02-20
DE69830816D1 (de) 2005-08-18
JPH10282997A (ja) 1998-10-23
EP1473710B1 (en) 2007-03-07
DE69837296D1 (de) 2007-04-19
DE69837296T2 (de) 2007-11-08
CA2233146C (en) 2002-02-19

Similar Documents

Publication Publication Date Title
JP3134817B2 (ja) 音声符号化復号装置
JPH0353300A (ja) 音声符号化装置
JP3063668B2 (ja) 音声符号化装置及び復号装置
JP4304360B2 (ja) 音声符号化復号方式間の符号変換方法および装置とその記憶媒体
JP3137176B2 (ja) 音声符号化装置
JPH09281995A (ja) 信号符号化装置及び方法
JP2002268696A (ja) 音響信号符号化方法、復号化方法及び装置並びにプログラム及び記録媒体
JPH1097295A (ja) 音響信号符号化方法及び復号化方法
JP3582589B2 (ja) 音声符号化装置及び音声復号化装置
JP3335841B2 (ja) 信号符号化装置
JPH0944195A (ja) 音声符号化装置
JP3329216B2 (ja) 音声符号化装置及び音声復号装置
JP3303580B2 (ja) 音声符号化装置
JP3299099B2 (ja) 音声符号化装置
JPH0519795A (ja) 音声の励振信号符号化・復号化方法
JP2004348120A (ja) 音声符号化装置、音声復号化装置及びこれらの方法
JP3490325B2 (ja) 音声信号符号化方法、復号方法およびその符号化器、復号器
JP2968109B2 (ja) コード励振線形予測符号化器及び復号化器
JP3319396B2 (ja) 音声符号化装置ならびに音声符号化復号化装置
JP3144284B2 (ja) 音声符号化装置
JP3552201B2 (ja) 音声符号化方法および装置
JPH08185199A (ja) 音声符号化装置
JP2002073097A (ja) Ｃｅｌｐ型音声符号化装置とｃｅｌｐ型音声復号化装置及び音声符号化方法と音声復号化方法
JP2853170B2 (ja) 音声符号化復号化方式
JP3410931B2 (ja) 音声符号化方法及び装置

Legal Events

Date Code Title Description
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20000404

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

Free format text: PAYMENT UNTIL: 20090512

Year of fee payment: 9

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

Free format text: PAYMENT UNTIL: 20100512

Year of fee payment: 10

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

Free format text: PAYMENT UNTIL: 20110512

Year of fee payment: 11

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

Free format text: PAYMENT UNTIL: 20110512

Year of fee payment: 11

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

Free format text: PAYMENT UNTIL: 20120512

Year of fee payment: 12

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

Free format text: PAYMENT UNTIL: 20120512

Year of fee payment: 12

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

Free format text: PAYMENT UNTIL: 20130512

Year of fee payment: 13

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

Free format text: PAYMENT UNTIL: 20140512

Year of fee payment: 14

EXPY Cancellation because of completion of term