BR0316498A - Método e aparelho para processar sinais de áudio de um fluxo de bits - Google Patents

Método e aparelho para processar sinais de áudio de um fluxo de bits

Info

Publication number
BR0316498A
BR0316498A BR0316498-5A BR0316498A BR0316498A BR 0316498 A BR0316498 A BR 0316498A BR 0316498 A BR0316498 A BR 0316498A BR 0316498 A BR0316498 A BR 0316498A
Authority
BR
Brazil
Prior art keywords
audio
channel
channel configuration
correct
mpeg
Prior art date
Application number
BR0316498-5A
Other languages
English (en)
Inventor
Juergen Schmidt
Jens Spille
Ernst F Schroeder
Johannes Boehm
Original Assignee
Thomson Licensing Sa
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 Thomson Licensing Sa filed Critical Thomson Licensing Sa
Publication of BR0316498A publication Critical patent/BR0316498A/pt

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S1/00—Two-channel systems
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S1/00—Two-channel systems
    • H04S1/007—Two-channel systems in which the audio signals are in digital form

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Stereophonic System (AREA)

Abstract

"MéTODO E APARELHO PARA PROCESSAR SINAIS DE áUDIO DE UM FLUXO DE BITS". No padrão ISO/IEC 14496:2001 MPEG-4, diversos objetos de áudio que podem ser codificados com diferentes tipos de codificação do formato MPEG-4 podem juntos formar um sistema de áudio composto que representa uma única trilha de som proveniente de diversos subfluxos de bits. Em um receptor, os múltiplos objetos de áudio são decodificados separadamente, mas não diretamente reproduzidos para um ouvinte. Em vez disso, instruções transmitidas para mixagem são usadas para preparar uma única trilha de som. Conflitos de mixagem podem ocorrer no caso de os sinais de áudio a ser combinados terem diferentes números ou configurações de canal. De acordo com a invenção, é usado um nó de configuração de canal de áudio adicional que sinaliza os itens de informação de configuração de canal corretos para os fluxos de dados de áudio decodificados a ser apresentados. A invenção permite que o provedor de conteúdo ajuste a configuração de canal de uma maneira tal que o apresentador no lado do receptor possa produzir uma apresentação de canal correta sob todas as circunstâncias. Um valor de código de escape nos dados de configuração de canal facilita o correto tratamento de combinações de canais ainda não definidas.
BR0316498-5A 2002-12-02 2003-11-24 Método e aparelho para processar sinais de áudio de um fluxo de bits BR0316498A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP02026779A EP1427252A1 (en) 2002-12-02 2002-12-02 Method and apparatus for processing audio signals from a bitstream
PCT/EP2003/013172 WO2004052052A2 (en) 2002-12-02 2003-11-24 Method and apparatus for processing audio signals from a bitstream

Publications (1)

Publication Number Publication Date
BR0316498A true BR0316498A (pt) 2005-10-11

Family

ID=32309353

Family Applications (2)

Application Number Title Priority Date Filing Date
BRPI0316498-5A BRPI0316498B1 (pt) 2002-12-02 2003-11-24 Método e aparelho para processar sinais de áudio de um fluxo de bits
BR0316498-5A BR0316498A (pt) 2002-12-02 2003-11-24 Método e aparelho para processar sinais de áudio de um fluxo de bits

Family Applications Before (1)

Application Number Title Priority Date Filing Date
BRPI0316498-5A BRPI0316498B1 (pt) 2002-12-02 2003-11-24 Método e aparelho para processar sinais de áudio de um fluxo de bits

Country Status (9)

Country Link
US (1) US8082050B2 (pt)
EP (2) EP1427252A1 (pt)
JP (2) JP5031988B2 (pt)
KR (1) KR101024749B1 (pt)
CN (1) CN100525513C (pt)
AU (1) AU2003288154B2 (pt)
BR (2) BRPI0316498B1 (pt)
CA (1) CA2508220C (pt)
WO (1) WO2004052052A2 (pt)

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Also Published As

Publication number Publication date
CN1711800A (zh) 2005-12-21
US8082050B2 (en) 2011-12-20
JP2011150358A (ja) 2011-08-04
JP2006508592A (ja) 2006-03-09
CA2508220A1 (en) 2004-06-17
CN100525513C (zh) 2009-08-05
KR101024749B1 (ko) 2011-03-24
EP1568250B1 (en) 2013-01-09
BRPI0316498B1 (pt) 2018-01-23
KR20050085262A (ko) 2005-08-29
EP1427252A1 (en) 2004-06-09
US20060174267A1 (en) 2006-08-03
AU2003288154B2 (en) 2008-08-07
JP5346051B2 (ja) 2013-11-20
JP5031988B2 (ja) 2012-09-26
AU2003288154A1 (en) 2004-06-23
WO2004052052A3 (en) 2004-08-12
CA2508220C (en) 2013-02-19
WO2004052052A2 (en) 2004-06-17
EP1568250A2 (en) 2005-08-31

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