AR080396A1 - Decodificador de senales de audio, codificador de senales 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 senales de audio, codificador de senales 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
AR080396A1
AR080396A1 ARP110100746A AR080396A1 AR 080396 A1 AR080396 A1 AR 080396A1 AR P110100746 A ARP110100746 A AR P110100746A AR 080396 A1 AR080396 A1 AR 080396A1
Authority
AR
Argentina
Prior art keywords
audio signal
coding
time distortion
distortion
encoded
Prior art date
Application number
Other languages
English (en)
Original Assignee
Dolby Int Ab
Fraunhofer Ges Forschung
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, Fraunhofer Ges Forschung filed Critical Dolby Int Ab
Publication of AR080396A1 publication Critical patent/AR080396A1/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
    • 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
    • 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 senal de audio configurado para proveer una representacion de senal de audio decodificada teniendo en cuenta una representacion de senal de audio codificada que comprende informacion de frecuencia de muestreo, informacion de distorsion en el tiempo codificada y una representacion de espectro codificada, que comprende un calculador de distorsion en el tiempo y un decodificador de distorsion. El calculador de distorsion en el tiempo se configura para adaptar una regla de mapeo para mapear palabras codificadas de la informacion de distorsion en el tiempo codificada en valores de distorsion en el tiempo decodificados que describen la informacion de distorsion en el tiempo decodificada dependiendo de la informacion de frecuencia de muestreo. El decodificador de distorsion se configura para proveer una representacion de senal de audio decodificada teniendo en cuenta la representacion de espectro codificada y dependiendo de la informacion de distorsion en el tiempo decodificada.
ARP110100746 2010-03-10 2011-03-10 Decodificador de senales de audio, codificador de senales de audio, metodos y programa de computacion que utiliza tasa de muestreo dependiente de la codificacion del contorno de distorsion en el tiempo AR080396A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US31250310P 2010-03-10 2010-03-10

Publications (1)

Publication Number Publication Date
AR080396A1 true AR080396A1 (es) 2012-04-04

Family

ID=43829343

Family Applications (2)

Application Number Title Priority Date Filing Date
ARP110100748 AR084465A1 (es) 2010-03-10 2011-03-10 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
ARP110100746 AR080396A1 (es) 2010-03-10 2011-03-10 Decodificador de senales de audio, codificador de senales de audio, metodos y programa de computacion que utiliza tasa de muestreo dependiente de la codificacion del contorno de distorsion en el tiempo

Family Applications Before (1)

Application Number Title Priority Date Filing Date
ARP110100748 AR084465A1 (es) 2010-03-10 2011-03-10 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) EP2532001B1 (es)
JP (2) JP5625076B2 (es)
KR (2) KR101445296B1 (es)
CN (2) CN102884573B (es)
AR (2) AR084465A1 (es)
AU (2) AU2011226143B9 (es)
BR (2) BR112012022744B1 (es)
CA (2) CA2792500C (es)
ES (2) ES2461183T3 (es)
HK (2) HK1179743A1 (es)
MX (2) MX2012010439A (es)
PL (2) PL2532001T3 (es)
RU (2) RU2586848C2 (es)
TW (2) TWI455113B (es)
WO (2) WO2011110591A1 (es)

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Also Published As

Publication number Publication date
TW201207846A (en) 2012-02-16
HK1181540A1 (en) 2013-11-08
BR112012022741A2 (pt) 2020-11-24
BR112012022741B1 (pt) 2021-09-21
EP2532001B1 (en) 2014-04-02
AU2011226140B2 (en) 2014-08-14
HK1179743A1 (en) 2013-10-04
AR084465A1 (es) 2013-05-22
JP2013521540A (ja) 2013-06-10
MX2012010469A (es) 2012-12-10
BR112012022744A2 (pt) 2017-12-12
TW201203224A (en) 2012-01-16
EP2532001A1 (en) 2012-12-12
RU2607264C2 (ru) 2017-01-10
EP2539893B1 (en) 2014-04-02
US9129597B2 (en) 2015-09-08
KR20120128156A (ko) 2012-11-26
JP5456914B2 (ja) 2014-04-02
JP2013522658A (ja) 2013-06-13
US20130117015A1 (en) 2013-05-09
AU2011226143B9 (en) 2015-03-19
WO2011110591A1 (en) 2011-09-15
AU2011226143B2 (en) 2014-08-28
ES2458354T3 (es) 2014-05-05
RU2012143340A (ru) 2014-04-20
CN102884572A (zh) 2013-01-16
US9524726B2 (en) 2016-12-20
CA2792500A1 (en) 2011-09-15
KR101445296B1 (ko) 2014-09-29
PL2539893T3 (pl) 2014-09-30
RU2012143323A (ru) 2014-04-20
US20130073296A1 (en) 2013-03-21
ES2461183T3 (es) 2014-05-19
WO2011110594A1 (en) 2011-09-15
BR112012022744B1 (pt) 2021-02-17
CN102884573B (zh) 2014-09-10
MX2012010439A (es) 2013-04-29
CA2792504A1 (en) 2011-09-15
EP2539893A1 (en) 2013-01-02
CN102884572B (zh) 2015-06-17
AU2011226143A1 (en) 2012-10-25
CA2792500C (en) 2016-05-03
PL2532001T3 (pl) 2014-09-30
RU2586848C2 (ru) 2016-06-10
CN102884573A (zh) 2013-01-16
TWI455113B (zh) 2014-10-01
TWI441170B (zh) 2014-06-11
AU2011226140A1 (en) 2012-10-18
CA2792504C (en) 2016-05-31
KR101445294B1 (ko) 2014-09-29
KR20130018761A (ko) 2013-02-25
JP5625076B2 (ja) 2014-11-12

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