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DE69932460D1 - Sprachkodierer/dekodierer - Google Patents

Sprachkodierer/dekodierer

Info

Publication number
DE69932460D1
DE69932460D1 DE69932460T DE69932460T DE69932460D1 DE 69932460 D1 DE69932460 D1 DE 69932460D1 DE 69932460 T DE69932460 T DE 69932460T DE 69932460 T DE69932460 T DE 69932460T DE 69932460 D1 DE69932460 D1 DE 69932460D1
Authority
DE
Germany
Prior art keywords
decoder
speech coder
coder
speech
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
DE69932460T
Other languages
English (en)
Other versions
DE69932460T2 (de
Inventor
Masanao Suzuki
Yasuji Ota
Yoshiteru Tsuchinaga
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
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Application granted granted Critical
Publication of DE69932460D1 publication Critical patent/DE69932460D1/de
Publication of DE69932460T2 publication Critical patent/DE69932460T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G10L19/09—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
    • 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
    • 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
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • 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
    • G10L2019/0008—Algebraic codebooks

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Computational Linguistics (AREA)
  • Algebra (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
DE69932460T 1999-09-14 1999-09-14 Sprachkodierer/dekodierer Expired - Lifetime DE69932460T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP1999/004991 WO2001020595A1 (en) 1999-09-14 1999-09-14 Voice encoder/decoder

Publications (2)

Publication Number Publication Date
DE69932460D1 true DE69932460D1 (de) 2006-08-31
DE69932460T2 DE69932460T2 (de) 2007-02-08

Family

ID=14236705

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69932460T Expired - Lifetime DE69932460T2 (de) 1999-09-14 1999-09-14 Sprachkodierer/dekodierer

Country Status (5)

Country Link
US (1) US6594626B2 (de)
EP (1) EP1221694B1 (de)
JP (1) JP4005359B2 (de)
DE (1) DE69932460T2 (de)
WO (1) WO2001020595A1 (de)

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CN1653521B (zh) * 2002-03-12 2010-05-26 迪里辛姆网络控股有限公司 用于音频代码转换中的自适应码本音调滞后计算的方法
JP4676140B2 (ja) 2002-09-04 2011-04-27 マイクロソフト コーポレーション オーディオの量子化および逆量子化
US7299190B2 (en) * 2002-09-04 2007-11-20 Microsoft Corporation Quantization and inverse quantization for audio
US7502743B2 (en) 2002-09-04 2009-03-10 Microsoft Corporation Multi-channel audio encoding and decoding with multi-channel transform selection
KR100463417B1 (ko) * 2002-10-10 2004-12-23 한국전자통신연구원 상관함수의 최대값과 그의 후보값의 비를 이용한 피치검출 방법 및 그 장치
JP2004157381A (ja) * 2002-11-07 2004-06-03 Hitachi Kokusai Electric Inc 音声符号化装置及び方法
KR100465316B1 (ko) * 2002-11-18 2005-01-13 한국전자통신연구원 음성 부호화기 및 이를 이용한 음성 부호화 방법
US7698132B2 (en) * 2002-12-17 2010-04-13 Qualcomm Incorporated Sub-sampled excitation waveform codebooks
TWI225637B (en) * 2003-06-09 2004-12-21 Ali Corp Method for calculation a pitch period estimation of speech signals with variable step size
WO2005020210A2 (en) * 2003-08-26 2005-03-03 Sarnoff Corporation Method and apparatus for adaptive variable bit rate audio encoding
US20050091047A1 (en) * 2003-10-27 2005-04-28 Gibbs Jonathan A. Method and apparatus for network communication
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
EP2189978A1 (de) 2004-08-30 2010-05-26 QUALCOMM Incorporated Verfahren und Vorrichtung für einen adaptiven De-Jitter-Puffer
US8085678B2 (en) 2004-10-13 2011-12-27 Qualcomm Incorporated Media (voice) playback (de-jitter) buffer adjustments based on air interface
US8355907B2 (en) 2005-03-11 2013-01-15 Qualcomm Incorporated Method and apparatus for phase matching frames in vocoders
US8155965B2 (en) 2005-03-11 2012-04-10 Qualcomm Incorporated Time warping frames inside the vocoder by modifying the residual
US7539612B2 (en) * 2005-07-15 2009-05-26 Microsoft Corporation Coding and decoding scale factor information
WO2007105586A1 (ja) * 2006-03-10 2007-09-20 Matsushita Electric Industrial Co., Ltd. 符号化装置および符号化方法
US8712766B2 (en) * 2006-05-16 2014-04-29 Motorola Mobility Llc Method and system for coding an information signal using closed loop adaptive bit allocation
JPWO2008001866A1 (ja) * 2006-06-29 2009-11-26 パナソニック株式会社 音声符号化装置及び音声符号化方法
JPWO2008007616A1 (ja) * 2006-07-13 2009-12-10 日本電気株式会社 無音声発声の入力警告装置と方法並びにプログラム
CN101226744B (zh) * 2007-01-19 2011-04-13 华为技术有限公司 语音解码器中实现语音解码的方法及装置
US8566106B2 (en) * 2007-09-11 2013-10-22 Voiceage Corporation Method and device for fast algebraic codebook search in speech and audio coding
CN100578619C (zh) * 2007-11-05 2010-01-06 华为技术有限公司 编码方法和编码器
CN101981612B (zh) * 2008-09-26 2012-06-27 松下电器产业株式会社 声音分析装置以及声音分析方法
CN101931414B (zh) 2009-06-19 2013-04-24 华为技术有限公司 脉冲编码方法及装置、脉冲解码方法及装置
JP5320508B2 (ja) * 2010-07-16 2013-10-23 日本電信電話株式会社 符号化装置、復号装置、これらの方法、プログラム及び記録媒体
CN102623012B (zh) * 2011-01-26 2014-08-20 华为技术有限公司 矢量联合编解码方法及编解码器
JP5613781B2 (ja) * 2011-02-16 2014-10-29 日本電信電話株式会社 符号化方法、復号方法、符号化装置、復号装置、プログラム及び記録媒体
US9947331B2 (en) * 2012-05-23 2018-04-17 Nippon Telegraph And Telephone Corporation Encoding method, decoding method, encoder, decoder, program and recording medium

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Also Published As

Publication number Publication date
JP4005359B2 (ja) 2007-11-07
DE69932460T2 (de) 2007-02-08
US6594626B2 (en) 2003-07-15
WO2001020595A1 (en) 2001-03-22
EP1221694A1 (de) 2002-07-10
EP1221694B1 (de) 2006-07-19
US20020111800A1 (en) 2002-08-15
EP1221694A4 (de) 2005-06-22

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Legal Events

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