BRPI0509113A - codificador de multicanal, método para codificar sinais de entrada, conteúdo de dados codificados, portador de dados, e, decodificador operável para decodificar dados de saìda codificados - Google Patents

codificador de multicanal, método para codificar sinais de entrada, conteúdo de dados codificados, portador de dados, e, decodificador operável para decodificar dados de saìda codificados

Info

Publication number
BRPI0509113A
BRPI0509113A BRPI0509113-6A BRPI0509113A BRPI0509113A BR PI0509113 A BRPI0509113 A BR PI0509113A BR PI0509113 A BRPI0509113 A BR PI0509113A BR PI0509113 A BRPI0509113 A BR PI0509113A
Authority
BR
Brazil
Prior art keywords
data
input signals
channels
encoder
encoded
Prior art date
Application number
BRPI0509113-6A
Other languages
English (en)
Inventor
Dirk Jeroen Breebaart
Erik Gosuinus Petrus Schuijers
Gerard Herman Hotho
Machiel Willem Van Loon
Original Assignee
Koninkl Philips Electronics Nv
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 Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Publication of BRPI0509113A publication Critical patent/BRPI0509113A/pt
Publication of BRPI0509113B1 publication Critical patent/BRPI0509113B1/pt
Publication of BRPI0509113B8 publication Critical patent/BRPI0509113B8/pt

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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Mathematical Physics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Stereophonic System (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Analogue/Digital Conversion (AREA)
  • Error Detection And Correction (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

CODIFICADOR DE MULTICANAL, MéTODO PARA CODIFICAR SINAIS DE ENTRADA, CONEúDO DE DADOS CODIFICADOS, PORTADOR DE DADOS, E, DECODIFICADOR OPERáVEL PARA DECODIFICAR DADOS DE SAìDA CODIFICADOS é descrito um codificador de multicanal (10; 600) para processar sinais de entrada levados em N canais de entrada para gerar sinais de saída correspondentes levados em M canais de saída junto com dados paramétricos complementares; M e N são inteiros em que N > M. O codificador (10; 600) inclui um misturador descendente para misturar descendentemente os sinais de entrada para gerar os sinais de saída correspondentes, o codificador também incluindo um analisador para processar os sinais de entrada para gerar os dados de parâmetro, ditos dados paramétricos descrevendo diferenças mútuas entre os N canais de sinal de entrada para permitir regeneração durante decodificar um ou mais dos N canais de sinais de entrada dos M canais de sinais de saída. Tal codificador (10; 600) é capaz de prover codificação de dados altamente eficiente e também de ser de compatibilidade reversa com decodificadores relativamente mais simples tendo menos que N canais de saída de decodificação. A invenção também relaciona-se a decodificadores (800) compatíveis com um tal codificador de multicanal (10; 600).
BRPI0509113A 2004-04-05 2005-03-25 codificador de multicanal, método para codificar sinais de entrada, conteúdo de dados codificados, portador de dados, e, decodificador operável para decodificar dados de saída codificados BRPI0509113B8 (pt)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
EP04101405.1 2004-04-05
EP04101405 2004-04-05
EP04102863.0 2004-06-22
EP04102863 2004-06-22
PCT/IB2005/051037 WO2005098821A2 (en) 2004-04-05 2005-03-25 Multi-channel encoder

Publications (3)

Publication Number Publication Date
BRPI0509113A true BRPI0509113A (pt) 2007-08-28
BRPI0509113B1 BRPI0509113B1 (pt) 2018-08-14
BRPI0509113B8 BRPI0509113B8 (pt) 2018-10-30

Family

ID=34962299

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0509113A BRPI0509113B8 (pt) 2004-04-05 2005-03-25 codificador de multicanal, método para codificar sinais de entrada, conteúdo de dados codificados, portador de dados, e, decodificador operável para decodificar dados de saída codificados

Country Status (14)

Country Link
US (1) US7602922B2 (pt)
EP (1) EP1735774B1 (pt)
JP (2) JP5032977B2 (pt)
KR (1) KR101158698B1 (pt)
CN (1) CN102122509B (pt)
AT (1) ATE395686T1 (pt)
BR (1) BRPI0509113B8 (pt)
DE (1) DE602005006777D1 (pt)
ES (1) ES2307160T3 (pt)
MX (1) MXPA06011361A (pt)
PL (1) PL1735774T3 (pt)
RU (1) RU2390857C2 (pt)
TW (1) TWI393119B (pt)
WO (1) WO2005098821A2 (pt)

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Also Published As

Publication number Publication date
ES2307160T3 (es) 2008-11-16
EP1735774A2 (en) 2006-12-27
KR20070001208A (ko) 2007-01-03
WO2005098821A2 (en) 2005-10-20
MXPA06011361A (es) 2007-01-16
RU2390857C2 (ru) 2010-05-27
US20070194952A1 (en) 2007-08-23
TWI393119B (zh) 2013-04-11
CN102122509B (zh) 2016-03-23
EP1735774B1 (en) 2008-05-14
BRPI0509113B1 (pt) 2018-08-14
JP5032977B2 (ja) 2012-09-26
BRPI0509113B8 (pt) 2018-10-30
CN102122509A (zh) 2011-07-13
TW200614150A (en) 2006-05-01
WO2005098821A3 (en) 2006-03-16
JP2007531913A (ja) 2007-11-08
KR101158698B1 (ko) 2012-06-22
DE602005006777D1 (de) 2008-06-26
US7602922B2 (en) 2009-10-13
JP2012191625A (ja) 2012-10-04
PL1735774T3 (pl) 2008-11-28
JP5311597B2 (ja) 2013-10-09
ATE395686T1 (de) 2008-05-15
RU2006139048A (ru) 2008-05-20

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