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)

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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 (https=)
EP (1) EP1810281B1 (https=)
JP (1) JP4939424B2 (https=)
KR (1) KR101187597B1 (https=)
CN (2) CN101053019B (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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JP5552988B2 (ja) * 2010-09-27 2014-07-16 富士通株式会社 音声帯域拡張装置および音声帯域拡張方法
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Also Published As

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

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