ATE451684T1 - Effiziente kodierung digitaler audiospektraldaten unter verwendung spektraler ähnlichkeit - Google Patents

Effiziente kodierung digitaler audiospektraldaten unter verwendung spektraler ähnlichkeit

Info

Publication number
ATE451684T1
ATE451684T1 AT04779866T AT04779866T ATE451684T1 AT E451684 T1 ATE451684 T1 AT E451684T1 AT 04779866 T AT04779866 T AT 04779866T AT 04779866 T AT04779866 T AT 04779866T AT E451684 T1 ATE451684 T1 AT E451684T1
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AT
Austria
Prior art keywords
encoding
spectral
shape
spectral coefficients
spectrum
Prior art date
Application number
AT04779866T
Other languages
English (en)
Inventor
Sanjeev Mehrotra
Wei-Ge Chen
Original Assignee
Microsoft Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application granted granted Critical
Publication of ATE451684T1 publication Critical patent/ATE451684T1/de

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Classifications

    • 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
    • G10L19/0208—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
    • G10L19/032—Quantisation or dequantisation of spectral components
    • G10L19/035—Scalar quantisation
    • 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

Landscapes

  • 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)
  • Lubricants (AREA)
AT04779866T 2004-01-23 2004-07-29 Effiziente kodierung digitaler audiospektraldaten unter verwendung spektraler ähnlichkeit ATE451684T1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US53904604P 2004-01-23 2004-01-23
US10/882,801 US7460990B2 (en) 2004-01-23 2004-06-29 Efficient coding of digital media spectral data using wide-sense perceptual similarity
PCT/US2004/024935 WO2005076260A1 (en) 2004-01-23 2004-07-29 Efficient coding of digital media spectral data using wide-sense perceptual similarity

Publications (1)

Publication Number Publication Date
ATE451684T1 true ATE451684T1 (de) 2009-12-15

Family

ID=34798916

Family Applications (1)

Application Number Title Priority Date Filing Date
AT04779866T ATE451684T1 (de) 2004-01-23 2004-07-29 Effiziente kodierung digitaler audiospektraldaten unter verwendung spektraler ähnlichkeit

Country Status (8)

Country Link
US (2) US7460990B2 (de)
EP (1) EP1730725B1 (de)
JP (4) JP4745986B2 (de)
KR (3) KR101130355B1 (de)
CN (1) CN1813286B (de)
AT (1) ATE451684T1 (de)
DE (1) DE602004024591D1 (de)
WO (1) WO2005076260A1 (de)

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US20050165611A1 (en) 2005-07-28
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CN1813286B (zh) 2010-11-24
JP2014240963A (ja) 2014-12-25
JP2007532934A (ja) 2007-11-15
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CN1813286A (zh) 2006-08-02
KR20060121655A (ko) 2006-11-29
EP1730725B1 (de) 2009-12-09
JP4745986B2 (ja) 2011-08-10
US7460990B2 (en) 2008-12-02
US8645127B2 (en) 2014-02-04
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EP1730725A1 (de) 2006-12-13
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KR101251813B1 (ko) 2013-04-09
KR101130355B1 (ko) 2012-03-27
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US20090083046A1 (en) 2009-03-26
KR20110042137A (ko) 2011-04-22
WO2005076260A1 (en) 2005-08-18

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