ECSP12012006A - Decodificación mejorada de flujos de bits codificados de audio multicanales utilizando transformación híbrida adaptativa - Google Patents

Decodificación mejorada de flujos de bits codificados de audio multicanales utilizando transformación híbrida adaptativa

Info

Publication number
ECSP12012006A
ECSP12012006A ECSP12012006A ECSP12012006A EC SP12012006 A ECSP12012006 A EC SP12012006A EC SP12012006 A ECSP12012006 A EC SP12012006A EC SP12012006 A ECSP12012006 A EC SP12012006A
Authority
EC
Ecuador
Prior art keywords
improved
decodification
adaptive hybrid
channel audio
coded bit
Prior art date
Application number
Other languages
English (en)
Inventor
Kamalanathan Ramamoorthy
Original Assignee
Dolby Lab Licensing 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
Publication date
Application filed by Dolby Lab Licensing Corp filed Critical Dolby Lab Licensing Corp
Publication of ECSP12012006A publication Critical patent/ECSP12012006A/es

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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
    • 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
    • G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Mathematical Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Analogue/Digital Conversion (AREA)

Abstract

Un método y un aparato para decodificar un cuadro de una señal de audio digital codificada y medio de almacenamiento que graba un programa de instrucciones. La eficiencia de procesamiento de un proceso utilizado para decodificar cuadros de un flujo de bits AC 3 mejorado se mejora procesando cada bloque de audio en un cuadro sólo una vez. Los bloques de audio de datos codificados se decodifican por orden de bloque en lugar de por orden de canal. Se revelan los procesos de decodificación ejemplares para las características de codificación de flujo de bits mejorado como el procesamiento de transformada híbrida adaptativa y la extensión espectral.
ECSP12012006 2009-12-07 2012-06-27 Decodificación mejorada de flujos de bits codificados de audio multicanales utilizando transformación híbrida adaptativa ECSP12012006A (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US26742209P 2009-12-07 2009-12-07

Publications (1)

Publication Number Publication Date
ECSP12012006A true ECSP12012006A (es) 2012-08-31

Family

ID=43334376

Family Applications (1)

Application Number Title Priority Date Filing Date
ECSP12012006 ECSP12012006A (es) 2009-12-07 2012-06-27 Decodificación mejorada de flujos de bits codificados de audio multicanales utilizando transformación híbrida adaptativa

Country Status (37)

Country Link
US (2) US8891776B2 (es)
EP (3) EP2706529A3 (es)
JP (2) JP5547297B2 (es)
KR (2) KR101629306B1 (es)
CN (2) CN102687198B (es)
AP (1) AP3301A (es)
AR (1) AR079878A1 (es)
AU (1) AU2010328635B2 (es)
BR (1) BR112012013745B1 (es)
CA (1) CA2779453C (es)
CL (1) CL2012001493A1 (es)
CO (1) CO6460719A2 (es)
DK (1) DK2510515T3 (es)
EA (1) EA024310B1 (es)
EC (1) ECSP12012006A (es)
ES (1) ES2463840T3 (es)
GE (1) GEP20146081B (es)
GT (1) GT201200134A (es)
HN (1) HN2012000819A (es)
HR (1) HRP20140400T1 (es)
IL (1) IL219304A (es)
MA (1) MA33775B1 (es)
MX (1) MX2012005723A (es)
MY (1) MY161012A (es)
NI (1) NI201200063A (es)
NZ (1) NZ599981A (es)
PE (1) PE20130167A1 (es)
PH (1) PH12012500906A1 (es)
PL (1) PL2510515T3 (es)
PT (1) PT2510515E (es)
RS (1) RS53288B (es)
SI (1) SI2510515T1 (es)
TN (1) TN2012000211A1 (es)
TW (1) TWI498881B (es)
UA (1) UA100353C2 (es)
WO (1) WO2011071610A1 (es)
ZA (1) ZA201203290B (es)

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EA024310B1 (ru) 2016-09-30
CN104217724A (zh) 2014-12-17
PE20130167A1 (es) 2013-02-16
US9620132B2 (en) 2017-04-11
DK2510515T3 (da) 2014-05-19
JP2014063187A (ja) 2014-04-10
EP2706529A3 (en) 2014-04-02
EP2706529A2 (en) 2014-03-12
TW201126511A (en) 2011-08-01
CA2779453A1 (en) 2011-06-16
BR112012013745B1 (pt) 2020-10-27
AP3301A (en) 2015-06-30
KR20120074305A (ko) 2012-07-05
KR101629306B1 (ko) 2016-06-10
AR079878A1 (es) 2012-02-29
CN104217724B (zh) 2017-04-05
MA33775B1 (fr) 2012-11-01
GEP20146081B (en) 2014-04-25
HRP20140400T1 (hr) 2014-06-06
JP2013511754A (ja) 2013-04-04
AU2010328635A1 (en) 2012-05-17
BR112012013745A2 (pt) 2016-03-15
KR20130116959A (ko) 2013-10-24
KR101370522B1 (ko) 2014-03-06
EP2510515A1 (en) 2012-10-17
EP2801975B1 (en) 2017-01-04
SI2510515T1 (sl) 2014-06-30
CO6460719A2 (es) 2012-06-15
HN2012000819A (es) 2015-03-16
WO2011071610A1 (en) 2011-06-16
HK1170058A1 (en) 2013-02-15
TWI498881B (zh) 2015-09-01
PT2510515E (pt) 2014-05-23
MX2012005723A (es) 2012-06-13
US8891776B2 (en) 2014-11-18
CA2779453C (en) 2015-12-22
PL2510515T3 (pl) 2014-07-31
AP2012006289A0 (en) 2012-06-30
TN2012000211A1 (en) 2013-12-12
EA201270642A1 (ru) 2012-12-28
JP5547297B2 (ja) 2014-07-09
IL219304A0 (en) 2012-06-28
CN102687198B (zh) 2014-09-24
AU2010328635B2 (en) 2014-02-13
JP5607809B2 (ja) 2014-10-15
RS53288B (sr) 2014-08-29
ZA201203290B (en) 2013-07-31
CN102687198A (zh) 2012-09-19
US20120243692A1 (en) 2012-09-27
NI201200063A (es) 2013-06-13
NZ599981A (en) 2014-07-25
PH12012500906A1 (en) 2015-03-25
MY161012A (en) 2017-03-31
CL2012001493A1 (es) 2012-10-19
EP2801975A1 (en) 2014-11-12
IL219304A (en) 2015-05-31
UA100353C2 (uk) 2012-12-10
US20150030161A1 (en) 2015-01-29
GT201200134A (es) 2013-08-29
ES2463840T3 (es) 2014-05-29
EP2510515B1 (en) 2014-03-19

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