JP4939424B2 - 複素値のフィルタ・バンクを用いたオーディオ信号の符号化及び復号化 - Google Patents

複素値のフィルタ・バンクを用いたオーディオ信号の符号化及び復号化 Download PDF

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JP4939424B2
JP4939424B2 JP2007538599A JP2007538599A JP4939424B2 JP 4939424 B2 JP4939424 B2 JP 4939424B2 JP 2007538599 A JP2007538599 A JP 2007538599A JP 2007538599 A JP2007538599 A JP 2007538599A JP 4939424 B2 JP4939424 B2 JP 4939424B2
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subband
time domain
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band
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エフ ビレモエス，ラルス
ヘー ペー スハイエルス，エリク
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    • 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
    • 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

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  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
JP2007538599A 2004-11-02 2005-10-31 複素値のフィルタ・バンクを用いたオーディオ信号の符号化及び復号化 Expired - Lifetime JP4939424B2 (ja)

Applications Claiming Priority (5)

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EP04105457 2004-11-02
EP04105457.8 2004-11-02
EP05108293.1 2005-09-09
EP05108293 2005-09-09
PCT/IB2005/053545 WO2006048814A1 (en) 2004-11-02 2005-10-31 Encoding and decoding of audio signals using complex-valued filter banks

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JP2008519290A JP2008519290A (ja) 2008-06-05
JP2008519290A5 JP2008519290A5 (https=) 2008-07-17
JP4939424B2 true JP4939424B2 (ja) 2012-05-23

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US (1) US8255231B2 (https=)
EP (1) EP1810281B1 (https=)
JP (1) JP4939424B2 (https=)
KR (1) KR101187597B1 (https=)
CN (2) CN102148035B (https=)
BR (1) BRPI0517234B1 (https=)
ES (1) ES2791001T3 (https=)
MX (1) MX2007005103A (https=)
PL (1) PL1810281T3 (https=)
RU (1) RU2407069C2 (https=)
WO (1) WO2006048814A1 (https=)

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Publication number Publication date
BRPI0517234A (pt) 2008-10-07
JP2008519290A (ja) 2008-06-05
CN101053019B (zh) 2012-01-25
BRPI0517234B1 (pt) 2019-07-02
CN102148035B (zh) 2014-06-18
EP1810281B1 (en) 2020-02-26
MX2007005103A (es) 2007-07-04
CN102148035A (zh) 2011-08-10
KR20070085681A (ko) 2007-08-27
EP1810281A1 (en) 2007-07-25
WO2006048814A1 (en) 2006-05-11
US8255231B2 (en) 2012-08-28
RU2007120591A (ru) 2008-12-10
KR101187597B1 (ko) 2012-10-12
CN101053019A (zh) 2007-10-10
US20090063140A1 (en) 2009-03-05
ES2791001T3 (es) 2020-10-30
PL1810281T3 (pl) 2020-07-27
RU2407069C2 (ru) 2010-12-20

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