CN1579047A - 信号编码装置及方法、以及信号解码装置及方法 - Google Patents

信号编码装置及方法、以及信号解码装置及方法 Download PDF

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Publication number
CN1579047A
CN1579047A CNA038013592A CN03801359A CN1579047A CN 1579047 A CN1579047 A CN 1579047A CN A038013592 A CNA038013592 A CN A038013592A CN 03801359 A CN03801359 A CN 03801359A CN 1579047 A CN1579047 A CN 1579047A
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China
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frequency band
signal
spectrum
frequency
band
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Chinese (zh)
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本间弘幸
松本淳
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Sony Corp
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Sony Corp
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    • 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
    • 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
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading 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
    • G10L19/02—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
    • 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
    • G10L19/02—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
    • G10L19/0204—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 using subband decomposition

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Quality & Reliability (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
CNA038013592A 2002-08-21 2003-07-29 信号编码装置及方法、以及信号解码装置及方法 Pending CN1579047A (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP241052/2002 2002-08-21
JP2002241052A JP3861770B2 (ja) 2002-08-21 2002-08-21 信号符号化装置及び方法、信号復号装置及び方法、並びにプログラム及び記録媒体

Publications (1)

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CN1579047A true CN1579047A (zh) 2005-02-09

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CNA038013592A Pending CN1579047A (zh) 2002-08-21 2003-07-29 信号编码装置及方法、以及信号解码装置及方法

Country Status (6)

Country Link
US (1) US7205910B2 (https=)
EP (1) EP1531551A4 (https=)
JP (1) JP3861770B2 (https=)
KR (1) KR20050030887A (https=)
CN (1) CN1579047A (https=)
WO (1) WO2004019497A1 (https=)

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CN101140759B (zh) * 2006-09-08 2010-05-12 华为技术有限公司 语音或音频信号的带宽扩展方法及系统
CN102334159A (zh) * 2009-02-26 2012-01-25 松下电器产业株式会社 编码装置、解码装置及其方法
CN101083076B (zh) * 2006-06-03 2012-03-14 三星电子株式会社 使用带宽扩展技术对信号编码和解码的方法和设备
CN101529503B (zh) * 2006-10-18 2012-05-09 弗劳恩霍夫应用研究促进协会 信息信号的编码装置及方法
CN101273404B (zh) * 2005-09-30 2012-07-04 松下电器产业株式会社 语音编码装置以及语音编码方法
CN101523485B (zh) * 2006-10-02 2012-10-10 卡西欧计算机株式会社 音频编码装置、音频解码装置、音频编码方法和音频解码方法
CN104040624A (zh) * 2011-11-03 2014-09-10 沃伊斯亚吉公司 改善低速率码激励线性预测解码器的非语音内容

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Publication number Priority date Publication date Assignee Title
CN100557687C (zh) * 2005-04-20 2009-11-04 Qnx软件操作系统（威美科）有限公司 用于改善语音质量和可懂度的系统
CN101273404B (zh) * 2005-09-30 2012-07-04 松下电器产业株式会社 语音编码装置以及语音编码方法
CN101083076B (zh) * 2006-06-03 2012-03-14 三星电子株式会社 使用带宽扩展技术对信号编码和解码的方法和设备
CN101140759B (zh) * 2006-09-08 2010-05-12 华为技术有限公司 语音或音频信号的带宽扩展方法及系统
CN101523485B (zh) * 2006-10-02 2012-10-10 卡西欧计算机株式会社 音频编码装置、音频解码装置、音频编码方法和音频解码方法
CN101529503B (zh) * 2006-10-18 2012-05-09 弗劳恩霍夫应用研究促进协会 信息信号的编码装置及方法
CN102334159A (zh) * 2009-02-26 2012-01-25 松下电器产业株式会社 编码装置、解码装置及其方法
CN104040624A (zh) * 2011-11-03 2014-09-10 沃伊斯亚吉公司 改善低速率码激励线性预测解码器的非语音内容
CN104040624B (zh) * 2011-11-03 2017-03-01 沃伊斯亚吉公司 改善低速率码激励线性预测解码器的非语音内容
CN106910509A (zh) * 2011-11-03 2017-06-30 沃伊斯亚吉公司 改善低速率码激励线性预测解码器的非语音内容

Also Published As

Publication number Publication date
JP2004080635A (ja) 2004-03-11
WO2004019497A1 (ja) 2004-03-04
KR20050030887A (ko) 2005-03-31
US20040247037A1 (en) 2004-12-09
JP3861770B2 (ja) 2006-12-20
US7205910B2 (en) 2007-04-17
EP1531551A1 (en) 2005-05-18
EP1531551A4 (en) 2006-01-04

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