MX2012010469A - Decodificador de señales de audio, codificador de señales de audio, metodos y programa de computacion que utiliza tasa de muestreo dependiente de la codificacion del contorno de distorsion en el tiempo. - Google Patents

Decodificador de señales de audio, codificador de señales de audio, metodos y programa de computacion que utiliza tasa de muestreo dependiente de la codificacion del contorno de distorsion en el tiempo.

Info

Publication number
MX2012010469A
MX2012010469A MX2012010469A MX2012010469A MX2012010469A MX 2012010469 A MX2012010469 A MX 2012010469A MX 2012010469 A MX2012010469 A MX 2012010469A MX 2012010469 A MX2012010469 A MX 2012010469A MX 2012010469 A MX2012010469 A MX 2012010469A
Authority
MX
Mexico
Prior art keywords
audio signal
time warp
decoder
methods
computer program
Prior art date
Application number
MX2012010469A
Other languages
English (en)
Inventor
Bernd Edler
Ralf Geiger
Sascha Disch
Lars Villemoes
Tom Baeckstroem
Stefan Bayer
Original Assignee
Dolby Int Ab
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 Int Ab filed Critical Dolby Int Ab
Publication of MX2012010469A publication Critical patent/MX2012010469A/es

Links

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
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/04—Time compression or expansion
    • 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
    • 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
    • G10L19/0212—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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/90—Pitch determination of speech signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (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)
  • Spectroscopy & Molecular Physics (AREA)
  • Quality & Reliability (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

Un decodificador de señal de audio configurado para proveer una representación de señal de audio decodificada teniendo en cuenta una representación de señal de audio codificada que comprende información de frecuencia de muestreo, información de distorsión en el tiempo codificada y una representación de espectro codificada, que comprende un calculador de distorsión en el tiempo y un decodificador de distorsión. El calculador de distorsión en el tiempo se configura para adaptar una regla de mapeo para mapear palabras codificadas de la información de distorsión en el tiempo codificada en valores de distorsión en el tiempo decodificados que describen la información de distorsión en el tiempo decodificada dependiendo de la información de frecuencia de muestreo. El decodificador de distorsión se configura para proveer una representación de señal de audio decodificada teniendo en cuenta la representación de espectro codificada y dependiendo de la información de distorsión en el tiempo decodificada.
MX2012010469A 2010-03-10 2011-03-09 Decodificador de señales de audio, codificador de señales de audio, metodos y programa de computacion que utiliza tasa de muestreo dependiente de la codificacion del contorno de distorsion en el tiempo. MX2012010469A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US31250310P 2010-03-10 2010-03-10
PCT/EP2011/053538 WO2011110591A1 (en) 2010-03-10 2011-03-09 Audio signal decoder, audio signal encoder, methods and computer program using a sampling rate dependent time-warp contour encoding

Publications (1)

Publication Number Publication Date
MX2012010469A true MX2012010469A (es) 2012-12-10

Family

ID=43829343

Family Applications (2)

Application Number Title Priority Date Filing Date
MX2012010469A MX2012010469A (es) 2010-03-10 2011-03-09 Decodificador de señales de audio, codificador de señales de audio, metodos y programa de computacion que utiliza tasa de muestreo dependiente de la codificacion del contorno de distorsion en el tiempo.
MX2012010439A MX2012010439A (es) 2010-03-10 2011-03-09 Decodificador de señales de audio, codificador de señales de audio, metodo para decodificar una señal de audio, metodo para codificar una señal de audio y programa de computacion que utilizan una adaptacion dependiente de la frecuencia de un contexto de codificacion.

Family Applications After (1)

Application Number Title Priority Date Filing Date
MX2012010439A MX2012010439A (es) 2010-03-10 2011-03-09 Decodificador de señales de audio, codificador de señales de audio, metodo para decodificar una señal de audio, metodo para codificar una señal de audio y programa de computacion que utilizan una adaptacion dependiente de la frecuencia de un contexto de codificacion.

Country Status (16)

Country Link
US (2) US9129597B2 (es)
EP (2) EP2539893B1 (es)
JP (2) JP5625076B2 (es)
KR (2) KR101445296B1 (es)
CN (2) CN102884572B (es)
AR (2) AR080396A1 (es)
AU (2) AU2011226143B9 (es)
BR (2) BR112012022744B1 (es)
CA (2) CA2792500C (es)
ES (2) ES2458354T3 (es)
HK (2) HK1179743A1 (es)
MX (2) MX2012010469A (es)
PL (2) PL2539893T3 (es)
RU (2) RU2586848C2 (es)
TW (2) TWI441170B (es)
WO (2) WO2011110591A1 (es)

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Also Published As

Publication number Publication date
JP2013521540A (ja) 2013-06-10
US20130117015A1 (en) 2013-05-09
US9524726B2 (en) 2016-12-20
CN102884572B (zh) 2015-06-17
TW201207846A (en) 2012-02-16
US20130073296A1 (en) 2013-03-21
CA2792504C (en) 2016-05-31
CN102884573B (zh) 2014-09-10
AR084465A1 (es) 2013-05-22
PL2532001T3 (pl) 2014-09-30
EP2532001A1 (en) 2012-12-12
US9129597B2 (en) 2015-09-08
JP5625076B2 (ja) 2014-11-12
BR112012022741B1 (pt) 2021-09-21
KR20120128156A (ko) 2012-11-26
PL2539893T3 (pl) 2014-09-30
RU2607264C2 (ru) 2017-01-10
KR101445296B1 (ko) 2014-09-29
ES2458354T3 (es) 2014-05-05
BR112012022744A2 (pt) 2017-12-12
AU2011226140B2 (en) 2014-08-14
BR112012022744B1 (pt) 2021-02-17
AU2011226140A1 (en) 2012-10-18
BR112012022741A2 (pt) 2020-11-24
CA2792500C (en) 2016-05-03
RU2012143340A (ru) 2014-04-20
CN102884572A (zh) 2013-01-16
TW201203224A (en) 2012-01-16
WO2011110594A1 (en) 2011-09-15
TWI441170B (zh) 2014-06-11
EP2539893B1 (en) 2014-04-02
CA2792500A1 (en) 2011-09-15
TWI455113B (zh) 2014-10-01
EP2532001B1 (en) 2014-04-02
HK1181540A1 (en) 2013-11-08
WO2011110591A1 (en) 2011-09-15
JP5456914B2 (ja) 2014-04-02
HK1179743A1 (en) 2013-10-04
ES2461183T3 (es) 2014-05-19
AU2011226143B2 (en) 2014-08-28
AU2011226143B9 (en) 2015-03-19
CN102884573A (zh) 2013-01-16
AU2011226143A1 (en) 2012-10-25
RU2012143323A (ru) 2014-04-20
JP2013522658A (ja) 2013-06-13
KR101445294B1 (ko) 2014-09-29
RU2586848C2 (ru) 2016-06-10
KR20130018761A (ko) 2013-02-25
MX2012010439A (es) 2013-04-29
EP2539893A1 (en) 2013-01-02
AR080396A1 (es) 2012-04-04
CA2792504A1 (en) 2011-09-15

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