JP3861770B2 - 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 - Google Patents

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 Download PDF

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JP3861770B2
JP3861770B2 JP2002241052A JP2002241052A JP3861770B2 JP 3861770 B2 JP3861770 B2 JP 3861770B2 JP 2002241052 A JP2002241052 A JP 2002241052A JP 2002241052 A JP2002241052 A JP 2002241052A JP 3861770 B2 JP3861770 B2 JP 3861770B2
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band
spectrum
series signal
time
frequency
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JP2004080635A (ja
JP2004080635A5 (https=
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弘幸 本間
淳 松本
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Sony Corp
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Sony Corp
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Priority to JP2002241052A priority Critical patent/JP3861770B2/ja
Application filed by Sony Corp filed Critical Sony Corp
Priority to CNA038013592A priority patent/CN1579047A/zh
Priority to US10/492,677 priority patent/US7205910B2/en
Priority to PCT/JP2003/009613 priority patent/WO2004019497A1/ja
Priority to KR1020047005898A priority patent/KR20050030887A/ko
Priority to EP03792639A priority patent/EP1531551A4/en
Publication of JP2004080635A publication Critical patent/JP2004080635A/ja
Publication of JP2004080635A5 publication Critical patent/JP2004080635A5/ja
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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)
JP2002241052A 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 Expired - Fee Related JP3861770B2 (ja)

Priority Applications (6)

Application Number Priority Date Filing Date Title
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
US10/492,677 US7205910B2 (en) 2002-08-21 2003-07-29 Signal encoding apparatus and signal encoding method, and signal decoding apparatus and signal decoding method
PCT/JP2003/009613 WO2004019497A1 (ja) 2002-08-21 2003-07-29 信号符号化装置及び方法、並びに信号復号装置及び方法
KR1020047005898A KR20050030887A (ko) 2002-08-21 2003-07-29 신호 부호화 장치 및 방법, 및 신호 복호 장치 및 방법
CNA038013592A 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
EP03792639A EP1531551A4 (en) 2002-08-21 2003-07-29 SIGNAL CODING DEVICE, METHOD, SIGNAL DECODING DEVICE AND METHOD

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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

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JP2004080635A JP2004080635A (ja) 2004-03-11
JP2004080635A5 JP2004080635A5 (https=) 2005-10-27
JP3861770B2 true JP3861770B2 (ja) 2006-12-20

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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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Also Published As

Publication number Publication date
JP2004080635A (ja) 2004-03-11
WO2004019497A1 (ja) 2004-03-04
KR20050030887A (ko) 2005-03-31
CN1579047A (zh) 2005-02-09
US20040247037A1 (en) 2004-12-09
US7205910B2 (en) 2007-04-17
EP1531551A1 (en) 2005-05-18
EP1531551A4 (en) 2006-01-04

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