BR0305434A - Métodos e arranjos para codificar e para decodificar um sinal de áudio multicanal, aparelhos para fornecer um sinal de áudio codificado e um sinal de áudio decodificado, sinal de áudio multicanal codificado, e, meio de armazenagem - Google Patents

Métodos e arranjos para codificar e para decodificar um sinal de áudio multicanal, aparelhos para fornecer um sinal de áudio codificado e um sinal de áudio decodificado, sinal de áudio multicanal codificado, e, meio de armazenagem

Info

Publication number
BR0305434A
BR0305434A BR0305434-9A BR0305434A BR0305434A BR 0305434 A BR0305434 A BR 0305434A BR 0305434 A BR0305434 A BR 0305434A BR 0305434 A BR0305434 A BR 0305434A
Authority
BR
Brazil
Prior art keywords
audio signal
encoded
encoding
signal
multichannel
Prior art date
Application number
BR0305434-9A
Other languages
English (en)
Inventor
Dirk J Breebaart
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.)
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Publication date
Application filed by Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Publication of BR0305434A publication Critical patent/BR0305434A/pt

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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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2420/00—Techniques used stereophonic systems covered by H04S but not provided for in its groups
    • H04S2420/03—Application of parametric coding in stereophonic audio systems

Landscapes

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

Abstract

"MéTODOS E ARRANJOS PARA CODIFICAR E PARA DECODIFICAR UM SINAL DE áUDIO MULTICANAL, APARELHOS PARA FORNECER UM SINAL DE áUDIO CODIFICADO E UM SINAL DE áUDIO DECODIFICADO, SINAL DE áUDIO MULTICANAL CODIFICADO, E, MEIO DE ARMAZENAGEM". Um método para codificar um sinal de áudio multicanal que inclui no mínimo um primeiro componente de sinal (LF), um segundo componente de sinal (LR) e um terceiro componente de sinal (RF). O método compreende as etapas de codificar os primeiro e segundo componentes de sinal por meio de um primeiro codificador paramétrico (202) resultando em um primeiro sinal codificado (L) e um primeiro conjunto de parâmetros de codificação (P2); codificar o primeiro sinal codificado e um outro sinal (R) por meio de um segundo codificador paramétrico (201) resultando em um segundo sinal codificado (T) e um segundo conjunto de parâmetros de codificação (PI), onde o outro sinal é derivado do no mínimo terceiro componente de sinal, e que representa o sinal de áudio multicanal no mínimo por meio de um sinal codificado resultante (T) derivado do no mínimo segundo sinal codificado por meio do primeiro conjunto de parâmetros de codificação e por meio do segundo conjunto de parâmetros de codificação.
BR0305434-9A 2002-07-12 2003-06-19 Métodos e arranjos para codificar e para decodificar um sinal de áudio multicanal, aparelhos para fornecer um sinal de áudio codificado e um sinal de áudio decodificado, sinal de áudio multicanal codificado, e, meio de armazenagem BR0305434A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP02077866 2002-07-12
PCT/IB2003/002858 WO2004008805A1 (en) 2002-07-12 2003-06-19 Audio coding

Publications (1)

Publication Number Publication Date
BR0305434A true BR0305434A (pt) 2004-09-28

Family

ID=30011202

Family Applications (2)

Application Number Title Priority Date Filing Date
BR0305434-9A BR0305434A (pt) 2002-07-12 2003-06-19 Métodos e arranjos para codificar e para decodificar um sinal de áudio multicanal, aparelhos para fornecer um sinal de áudio codificado e um sinal de áudio decodificado, sinal de áudio multicanal codificado, e, meio de armazenagem
BRPI0305434-9A BRPI0305434B1 (pt) 2002-07-12 2003-06-19 Methods and arrangements for encoding and decoding a multichannel audio signal, and multichannel audio coded signal

Family Applications After (1)

Application Number Title Priority Date Filing Date
BRPI0305434-9A BRPI0305434B1 (pt) 2002-07-12 2003-06-19 Methods and arrangements for encoding and decoding a multichannel audio signal, and multichannel audio coded signal

Country Status (12)

Country Link
US (2) US7447629B2 (pt)
EP (1) EP1523862B1 (pt)
JP (1) JP4322207B2 (pt)
KR (1) KR100981699B1 (pt)
CN (1) CN100539742C (pt)
AT (1) ATE377339T1 (pt)
AU (1) AU2003244932A1 (pt)
BR (2) BR0305434A (pt)
DE (1) DE60317203T2 (pt)
ES (1) ES2294300T3 (pt)
RU (1) RU2363116C2 (pt)
WO (1) WO2004008805A1 (pt)

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ES2294300T3 (es) 2008-04-01
WO2004008805A1 (en) 2004-01-22
KR100981699B1 (ko) 2010-09-13
ATE377339T1 (de) 2007-11-15
AU2003244932A1 (en) 2004-02-02
DE60317203D1 (de) 2007-12-13
KR20050019851A (ko) 2005-03-03
US20080243520A1 (en) 2008-10-02
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