JP5627843B2 - スペクトル領域において適応切り替え式時間分解を使用して音声信号を符号化及び復号化する方法及び装置 - Google Patents

スペクトル領域において適応切り替え式時間分解を使用して音声信号を符号化及び復号化する方法及び装置 Download PDF

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JP5627843B2
JP5627843B2 JP2008154011A JP2008154011A JP5627843B2 JP 5627843 B2 JP5627843 B2 JP 5627843B2 JP 2008154011 A JP2008154011 A JP 2008154011A JP 2008154011 A JP2008154011 A JP 2008154011A JP 5627843 B2 JP5627843 B2 JP 5627843B2
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ベーム ヨハンネス
ベーム ヨハンネス
コルドン スベン
コルドン スベン
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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
    • G10L19/03—Spectral prediction for preventing pre-echo; Temporary noise shaping [TNS], e.g. in MPEG2 or MPEG4
    • 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
    • G10L19/0212—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 orthogonal transformation
    • 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
    • G10L19/022—Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring

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  • Engineering & Computer Science (AREA)
  • 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)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
JP2008154011A 2007-06-14 2008-06-12 スペクトル領域において適応切り替え式時間分解を使用して音声信号を符号化及び復号化する方法及び装置 Expired - Fee Related JP5627843B2 (ja)

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EP07110289.1 2007-06-14
EP07110289A EP2015293A1 (en) 2007-06-14 2007-06-14 Method and apparatus for encoding and decoding an audio signal using adaptively switched temporal resolution in the spectral domain

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JP2008310327A JP2008310327A (ja) 2008-12-25
JP2008310327A5 JP2008310327A5 (cg-RX-API-DMAC10.html) 2014-02-20
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US (1) US8095359B2 (cg-RX-API-DMAC10.html)
EP (2) EP2015293A1 (cg-RX-API-DMAC10.html)
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KR (1) KR101445396B1 (cg-RX-API-DMAC10.html)
CN (1) CN101325060B (cg-RX-API-DMAC10.html)

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EP2003643A1 (en) 2008-12-17
CN101325060A (zh) 2008-12-17
US8095359B2 (en) 2012-01-10
EP2015293A1 (en) 2009-01-14
KR101445396B1 (ko) 2014-09-26
EP2003643B1 (en) 2014-02-12
CN101325060B (zh) 2012-10-31
US20090012797A1 (en) 2009-01-08
JP2008310327A (ja) 2008-12-25
KR20080110542A (ko) 2008-12-18

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