KR101445396B1 - 스펙트럼 도메인에서 적응적으로 스위칭되는 시간적해상도를 이용하여 오디오 신호를 인코딩 및 디코딩하는방법 및 장치 - Google Patents

스펙트럼 도메인에서 적응적으로 스위칭되는 시간적해상도를 이용하여 오디오 신호를 인코딩 및 디코딩하는방법 및 장치 Download PDF

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KR101445396B1
KR101445396B1 KR1020080055986A KR20080055986A KR101445396B1 KR 101445396 B1 KR101445396 B1 KR 101445396B1 KR 1020080055986 A KR1020080055986 A KR 1020080055986A KR 20080055986 A KR20080055986 A KR 20080055986A KR 101445396 B1 KR101445396 B1 KR 101445396B1
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조한네스 보엠
스벤 고든
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톰슨 라이센싱
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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)
KR1020080055986A 2007-06-14 2008-06-13 스펙트럼 도메인에서 적응적으로 스위칭되는 시간적해상도를 이용하여 오디오 신호를 인코딩 및 디코딩하는방법 및 장치 Expired - Fee Related KR101445396B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
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
EP07110289.1 2007-06-14

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KR20080110542A KR20080110542A (ko) 2008-12-18
KR101445396B1 true KR101445396B1 (ko) 2014-09-26

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US (1) US8095359B2 (https=)
EP (2) EP2015293A1 (https=)
JP (1) JP5627843B2 (https=)
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CN (1) CN101325060B (https=)

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US8095359B2 (en) 2012-01-10
JP5627843B2 (ja) 2014-11-19
KR20080110542A (ko) 2008-12-18
CN101325060B (zh) 2012-10-31
EP2015293A1 (en) 2009-01-14
US20090012797A1 (en) 2009-01-08
CN101325060A (zh) 2008-12-17
EP2003643A1 (en) 2008-12-17
EP2003643B1 (en) 2014-02-12
JP2008310327A (ja) 2008-12-25

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