DE69827313D1 - Verfahren zur Kodierung des Zufallskomponenten-Vektors in einem ACELP-Kodierer - Google Patents

Verfahren zur Kodierung des Zufallskomponenten-Vektors in einem ACELP-Kodierer

Info

Publication number
DE69827313D1
DE69827313D1 DE69827313T DE69827313T DE69827313D1 DE 69827313 D1 DE69827313 D1 DE 69827313D1 DE 69827313 T DE69827313 T DE 69827313T DE 69827313 T DE69827313 T DE 69827313T DE 69827313 D1 DE69827313 D1 DE 69827313D1
Authority
DE
Germany
Prior art keywords
coding
component vector
random component
acelp encoder
acelp
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
DE69827313T
Other languages
English (en)
Other versions
DE69827313T2 (de
Inventor
Shinji Hayashi
Sachiko Kurihara
Akitoshi Kataoka
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Publication of DE69827313D1 publication Critical patent/DE69827313D1/de
Application granted granted Critical
Publication of DE69827313T2 publication Critical patent/DE69827313T2/de
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
    • G10L19/08—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
    • G10L2019/0001—Codebooks
    • G10L2019/0007—Codebook element generation
    • G10L2019/0008—Algebraic codebooks
DE69827313T 1997-03-13 1998-03-12 Verfahren zur Kodierung des Zufallskomponenten-Vektors in einem ACELP-Kodierer Expired - Lifetime DE69827313T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP5946697 1997-03-13
JP5946697 1997-03-13

Publications (2)

Publication Number Publication Date
DE69827313D1 true DE69827313D1 (de) 2004-12-09
DE69827313T2 DE69827313T2 (de) 2005-11-10

Family

ID=13114126

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69827313T Expired - Lifetime DE69827313T2 (de) 1997-03-13 1998-03-12 Verfahren zur Kodierung des Zufallskomponenten-Vektors in einem ACELP-Kodierer

Country Status (4)

Country Link
US (1) US5970444A (de)
EP (1) EP0865027B1 (de)
CA (1) CA2231925C (de)
DE (1) DE69827313T2 (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69712539T2 (de) * 1996-11-07 2002-08-29 Matsushita Electric Ind Co Ltd Verfahren und Vorrichtung zur Erzeugung eines Vektorquantisierungs-Codebuchs
US6889185B1 (en) * 1997-08-28 2005-05-03 Texas Instruments Incorporated Quantization of linear prediction coefficients using perceptual weighting
JP3252782B2 (ja) * 1998-01-13 2002-02-04 日本電気株式会社 モデム信号対応音声符号化復号化装置
JP3199020B2 (ja) 1998-02-27 2001-08-13 日本電気株式会社 音声音楽信号の符号化装置および復号装置
WO1999063520A1 (de) * 1998-05-29 1999-12-09 Siemens Aktiengesellschaft Verfahren und anordnung zur fehlerverdeckung
US6556966B1 (en) * 1998-08-24 2003-04-29 Conexant Systems, Inc. Codebook structure for changeable pulse multimode speech coding
ATE328407T1 (de) * 1998-09-11 2006-06-15 Motorola Inc Verfahren zur kodierung von informationsignalen
JP4173940B2 (ja) * 1999-03-05 2008-10-29 松下電器産業株式会社 音声符号化装置及び音声符号化方法
US6574593B1 (en) * 1999-09-22 2003-06-03 Conexant Systems, Inc. Codebook tables for encoding and decoding
US6738733B1 (en) 1999-09-30 2004-05-18 Stmicroelectronics Asia Pacific Pte Ltd. G.723.1 audio encoder
US6847929B2 (en) * 2000-10-12 2005-01-25 Texas Instruments Incorporated Algebraic codebook system and method
FI119955B (fi) * 2001-06-21 2009-05-15 Nokia Corp Menetelmä, kooderi ja laite puheenkoodaukseen synteesi-analyysi puhekoodereissa
JP2004101588A (ja) * 2002-09-05 2004-04-02 Hitachi Kokusai Electric Inc 音声符号化方法及び音声符号化装置
US7698132B2 (en) * 2002-12-17 2010-04-13 Qualcomm Incorporated Sub-sampled excitation waveform codebooks
US7249014B2 (en) * 2003-03-13 2007-07-24 Intel Corporation Apparatus, methods and articles incorporating a fast algebraic codebook search technique
EP3038104B1 (de) 2013-08-22 2018-12-19 Panasonic Intellectual Property Corporation of America Sprachcodierungsvorrichtung und verfahren dafür

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2729245B1 (fr) * 1995-01-06 1997-04-11 Lamblin Claude Procede de codage de parole a prediction lineaire et excitation par codes algebriques
US5664055A (en) * 1995-06-07 1997-09-02 Lucent Technologies Inc. CS-ACELP speech compression system with adaptive pitch prediction filter gain based on a measure of periodicity
US5732389A (en) * 1995-06-07 1998-03-24 Lucent Technologies Inc. Voiced/unvoiced classification of speech for excitation codebook selection in celp speech decoding during frame erasures
JP3196595B2 (ja) * 1995-09-27 2001-08-06 日本電気株式会社 音声符号化装置
CA2188369C (en) * 1995-10-19 2005-01-11 Joachim Stegmann Method and an arrangement for classifying speech signals

Also Published As

Publication number Publication date
CA2231925A1 (en) 1998-09-13
EP0865027A3 (de) 1999-05-26
EP0865027A2 (de) 1998-09-16
DE69827313T2 (de) 2005-11-10
US5970444A (en) 1999-10-19
EP0865027B1 (de) 2004-11-03
CA2231925C (en) 2002-07-02

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