ES2791001T3 - Codificación y decodificación de señales de audio mediante el uso de bancos de filtros de valor complejo - Google Patents

Codificación y decodificación de señales de audio mediante el uso de bancos de filtros de valor complejo Download PDF

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Publication number
ES2791001T3
ES2791001T3 ES05797747T ES05797747T ES2791001T3 ES 2791001 T3 ES2791001 T3 ES 2791001T3 ES 05797747 T ES05797747 T ES 05797747T ES 05797747 T ES05797747 T ES 05797747T ES 2791001 T3 ES2791001 T3 ES 2791001T3
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Prior art keywords
subband
signal
sub
time domain
band
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Expired - Lifetime
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ES05797747T
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English (en)
Spanish (es)
Inventor
Lars F Villemoes
Erik G P Schuijers
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Dolby International AB
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Koninklijke Philips NV
Dolby International AB
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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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  • 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)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
ES05797747T 2004-11-02 2005-10-31 Codificación y decodificación de señales de audio mediante el uso de bancos de filtros de valor complejo Expired - Lifetime ES2791001T3 (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP04105457 2004-11-02
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

Publications (1)

Publication Number Publication Date
ES2791001T3 true ES2791001T3 (es) 2020-10-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
ES05797747T Expired - Lifetime ES2791001T3 (es) 2004-11-02 2005-10-31 Codificación y decodificación de señales de audio mediante el uso de bancos de filtros de valor complejo

Country Status (11)

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

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Also Published As

Publication number Publication date
KR101187597B1 (ko) 2012-10-12
BRPI0517234A (pt) 2008-10-07
JP2008519290A (ja) 2008-06-05
CN102148035A (zh) 2011-08-10
CN101053019A (zh) 2007-10-10
JP4939424B2 (ja) 2012-05-23
MX2007005103A (es) 2007-07-04
KR20070085681A (ko) 2007-08-27
EP1810281A1 (en) 2007-07-25
PL1810281T3 (pl) 2020-07-27
RU2007120591A (ru) 2008-12-10
WO2006048814A1 (en) 2006-05-11
CN102148035B (zh) 2014-06-18
BRPI0517234B1 (pt) 2019-07-02
CN101053019B (zh) 2012-01-25
RU2407069C2 (ru) 2010-12-20
US20090063140A1 (en) 2009-03-05
EP1810281B1 (en) 2020-02-26
US8255231B2 (en) 2012-08-28

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