AR091042A1 - Codificador, metodo y decodificador eficaz de señal de audio multicanal con multiples subcorrientes - Google Patents

Codificador, metodo y decodificador eficaz de señal de audio multicanal con multiples subcorrientes

Info

Publication number
AR091042A1
AR091042A1 ARP130101660A ARP130101660A AR091042A1 AR 091042 A1 AR091042 A1 AR 091042A1 AR P130101660 A ARP130101660 A AR P130101660A AR P130101660 A ARP130101660 A AR P130101660A AR 091042 A1 AR091042 A1 AR 091042A1
Authority
AR
Argentina
Prior art keywords
audio signal
multichannel audio
channel configuration
decoder
sub
Prior art date
Application number
ARP130101660A
Other languages
English (en)
Original Assignee
Dolby Int Ab
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 Int Ab, Dolby Lab Licensing Corp filed Critical Dolby Int Ab
Publication of AR091042A1 publication Critical patent/AR091042A1/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
    • 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
    • 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
    • G10L19/032—Quantisation or dequantisation of spectral components
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/008—Systems employing more than two channels, e.g. quadraphonic in which the audio signals are in digital form, i.e. employing more than two discrete digital channels
    • 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
    • G10L19/04—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 predictive techniques
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Mathematical Physics (AREA)
  • Stereophonic System (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

La presente se refiere a codificación/decodificación de audio. En particular, la presente se refiere a un método y sistema para mejorar la calidad de señales de audio multicanal codificadas. Se describe un codificador de audio configurado para codificar una señal de audio multicanal de acuerdo con una velocidad de transferencia de datos total disponible. La señal de audio multicanal se puede representar como un grupo básico (121) de canales para producir la señal de audio multicanal de acuerdo con una configuración de canales básicos, y como un grupo de extensión (122) de canales que, en combinación con el grupo básico (122), es para producir la señal de audio multicanal de acuerdo con una configuración de canales extendidos. La configuración de canales básicos y la configuración de canales extendidos son diferentes entre sí.
ARP130101660A 2012-05-15 2013-05-14 Codificador, metodo y decodificador eficaz de señal de audio multicanal con multiples subcorrientes AR091042A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US201261647226P 2012-05-15 2012-05-15

Publications (1)

Publication Number Publication Date
AR091042A1 true AR091042A1 (es) 2014-12-30

Family

ID=48576522

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP130101660A AR091042A1 (es) 2012-05-15 2013-05-14 Codificador, metodo y decodificador eficaz de señal de audio multicanal con multiples subcorrientes

Country Status (9)

Country Link
US (1) US9779738B2 (es)
EP (1) EP2850613B1 (es)
JP (1) JP6133408B2 (es)
CN (1) CN104285253B (es)
AR (1) AR091042A1 (es)
ES (1) ES2641390T3 (es)
HK (1) HK1201371A1 (es)
TW (1) TWI505262B (es)
WO (1) WO2013173314A1 (es)

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CN104065977B (zh) * 2014-06-06 2018-05-15 北京音之邦文化科技有限公司 音/视频文件的处理方法及装置
CN110364190B (zh) * 2014-10-03 2021-03-12 杜比国际公司 个性化音频的智能访问
CA2975431C (en) * 2015-02-02 2019-09-17 Adrian Murtaza Apparatus and method for processing an encoded audio signal
MX2018004166A (es) * 2015-10-08 2018-08-01 Dolby Int Ab Codificacion en capas y estructuras de datos para representaciones comprimidas, ambisonicas de mayor orden de sonido o campo de sonido.
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Also Published As

Publication number Publication date
EP2850613A1 (en) 2015-03-25
US9779738B2 (en) 2017-10-03
JP2015520872A (ja) 2015-07-23
TW201405548A (zh) 2014-02-01
HK1201371A1 (en) 2015-08-28
CN104285253A (zh) 2015-01-14
EP2850613B1 (en) 2017-08-16
TWI505262B (zh) 2015-10-21
CN104285253B (zh) 2017-05-17
WO2013173314A1 (en) 2013-11-21
ES2641390T3 (es) 2017-11-08
JP6133408B2 (ja) 2017-05-24
US20150131800A1 (en) 2015-05-14

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