TW200639801A - Low-complexity code excited linear prediction encoding - Google Patents

Low-complexity code excited linear prediction encoding

Info

Publication number
TW200639801A
TW200639801A TW094144472A TW94144472A TW200639801A TW 200639801 A TW200639801 A TW 200639801A TW 094144472 A TW094144472 A TW 094144472A TW 94144472 A TW94144472 A TW 94144472A TW 200639801 A TW200639801 A TW 200639801A
Authority
TW
Taiwan
Prior art keywords
signals
signal
low
excitation signals
linear prediction
Prior art date
Application number
TW094144472A
Other languages
English (en)
Chinese (zh)
Inventor
Anisse Taleb
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of TW200639801A publication Critical patent/TW200639801A/zh

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
    • G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
    • 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
    • G10L19/09—Long term prediction, i.e. removing periodical redundancies, e.g. by using adaptive codebook or pitch predictor
    • 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
    • G10L19/10—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 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
    • G10L19/10—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Mathematical Physics (AREA)
  • Algebra (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • General Physics & Mathematics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Analogue/Digital Conversion (AREA)
TW094144472A 2005-03-09 2005-12-15 Low-complexity code excited linear prediction encoding TW200639801A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SE2005/000349 WO2006096099A1 (en) 2005-03-09 2005-03-09 Low-complexity code excited linear prediction encoding

Publications (1)

Publication Number Publication Date
TW200639801A true TW200639801A (en) 2006-11-16

Family

ID=36953623

Family Applications (1)

Application Number Title Priority Date Filing Date
TW094144472A TW200639801A (en) 2005-03-09 2005-12-15 Low-complexity code excited linear prediction encoding

Country Status (8)

Country Link
EP (1) EP1859441B1 (pt)
JP (1) JP5174651B2 (pt)
KR (1) KR101235425B1 (pt)
CN (1) CN101138022B (pt)
AT (1) ATE513290T1 (pt)
BR (1) BRPI0520115B1 (pt)
TW (1) TW200639801A (pt)
WO (1) WO2006096099A1 (pt)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008134974A1 (en) 2007-04-29 2008-11-13 Huawei Technologies Co., Ltd. An encoding method, a decoding method, an encoder and a decoder
CN102299760B (zh) 2010-06-24 2014-03-12 华为技术有限公司 脉冲编解码方法及脉冲编解码器

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3139602B2 (ja) * 1995-03-24 2001-03-05 日本電信電話株式会社 音響信号符号化方法及び復号化方法
JPH1097295A (ja) * 1996-09-24 1998-04-14 Nippon Telegr & Teleph Corp <Ntt> 音響信号符号化方法及び復号化方法
JP3622365B2 (ja) * 1996-09-26 2005-02-23 ヤマハ株式会社 音声符号化伝送方式
JP3329216B2 (ja) * 1997-01-27 2002-09-30 日本電気株式会社 音声符号化装置及び音声復号装置
US7024355B2 (en) * 1997-01-27 2006-04-04 Nec Corporation Speech coder/decoder
JP3063668B2 (ja) * 1997-04-04 2000-07-12 日本電気株式会社 音声符号化装置及び復号装置
JP3134817B2 (ja) * 1997-07-11 2001-02-13 日本電気株式会社 音声符号化復号装置
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
SE521225C2 (sv) * 1998-09-16 2003-10-14 Ericsson Telefon Ab L M Förfarande och anordning för CELP-kodning/avkodning
JP3343082B2 (ja) * 1998-10-27 2002-11-11 松下電器産業株式会社 Ｃｅｌｐ型音声符号化装置
US6539349B1 (en) * 2000-02-15 2003-03-25 Lucent Technologies Inc. Constraining pulse positions in CELP vocoding
JP2004302259A (ja) * 2003-03-31 2004-10-28 Matsushita Electric Ind Co Ltd 音響信号の階層符号化方法および階層復号化方法

Also Published As

Publication number Publication date
KR20070116869A (ko) 2007-12-11
KR101235425B1 (ko) 2013-02-20
EP1859441B1 (en) 2011-06-15
BRPI0520115A2 (pt) 2009-09-15
BRPI0520115B1 (pt) 2018-07-17
JP5174651B2 (ja) 2013-04-03
JP2008533522A (ja) 2008-08-21
EP1859441A1 (en) 2007-11-28
CN101138022A (zh) 2008-03-05
CN101138022B (zh) 2011-08-10
WO2006096099A1 (en) 2006-09-14
ATE513290T1 (de) 2011-07-15

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