BRPI0608945B8 - codificador de áudio de multi-canal, decodificador de áudio de multi-canal, método de codificar n sinais de áudio em m sinais de áudio e dados paramétricos associados, método de decodificar k sinais de áudio e dados paramétricos associados, método de transmitir e receber um sinal de áudio de multi-canal codificado, mídia de armazenamento legível por computador, e, sistema de transmissão - Google Patents

codificador de áudio de multi-canal, decodificador de áudio de multi-canal, método de codificar n sinais de áudio em m sinais de áudio e dados paramétricos associados, método de decodificar k sinais de áudio e dados paramétricos associados, método de transmitir e receber um sinal de áudio de multi-canal codificado, mídia de armazenamento legível por computador, e, sistema de transmissão

Info

Publication number
BRPI0608945B8
BRPI0608945B8 BRPI0608945A BRPI0608945A BRPI0608945B8 BR PI0608945 B8 BRPI0608945 B8 BR PI0608945B8 BR PI0608945 A BRPI0608945 A BR PI0608945A BR PI0608945 A BRPI0608945 A BR PI0608945A BR PI0608945 B8 BRPI0608945 B8 BR PI0608945B8
Authority
BR
Brazil
Prior art keywords
channel audio
mix
audio signals
parametric data
associated parametric
Prior art date
Application number
BRPI0608945A
Other languages
English (en)
Inventor
C Den Brinker Albertus
J Breebaart Dirk
G P Schuijers Erik
H Hotho Gerard
Purnhagen Heiko
J Rodén Karl
F Villemoes Lars
Original Assignee
Coding Tech Ab
Dolby Int Ab
Dolby Sweden Ab
Koninl 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 Coding Tech Ab, Dolby Int Ab, Dolby Sweden Ab, Koninl Philips Electronics Nv filed Critical Coding Tech Ab
Publication of BRPI0608945A2 publication Critical patent/BRPI0608945A2/pt
Publication of BRPI0608945B1 publication Critical patent/BRPI0608945B1/pt
Publication of BRPI0608945B8 publication Critical patent/BRPI0608945B8/pt
Publication of BRPI0608945C8 publication Critical patent/BRPI0608945C8/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
    • G10L19/04—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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • 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
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2420/00—Details of connection covered by H04R, not provided for in its groups
    • H04R2420/07—Applications of wireless loudspeakers or wireless microphones
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Computational Linguistics (AREA)
  • Human Computer Interaction (AREA)
  • Multimedia (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Stereophonic System (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Circuit For Audible Band Transducer (AREA)

Abstract

codificador de áudio de multi-canal, decodificador de áudio de multi-canal, metodos de codificar n sinais de áudio em m sinais de atjdio e dados paramétricos associados, de decodificar k sinais de áudio e dados paramétrilcos associados em n sinais de áudio, e de transmitir e receber um sinal de audio de multi-canal codificado, sinal de audio de miujlti-canal codificado, meio de armazenamento, sistema de transmissão, transmissor, receptor, reprodutor de áudio de multi-canal, gravador de audio de multi-canal, e, produto de programa de computador. um codificador de áudio de multi-canal (10) para codificar um sinal de áudio de multi-canal (101), por exemplo um sinal de áudio de 5.1 canais, em uma mistura abaixo espacial (102), por exemplo, um sinal estéreo, e parâmetros associados (104, 105). o codificador (10) inclui primeira e segunda unidades (110, 120). a primeira unidade (110) codifica o sinal de áudio de multi-canal (101) na mistura abaixo espacial (102) e parâmetros (104). estes parâmetros (104) habilitam um decodificador de multi-canal (20) reconstruir o sinal de áudio de multi-canal (203) da mistura abaixo espacial (102). a segunda unidade (120) gera, da mistura abaixo espacial (102), parâmetros (105) que habilitam o decodificador a reconstruir a mistura abaixo espacial (202) de uma mistura abaixo alternativa (103), por exemplo uma denominada mistura abaixo artística que foi misturada manualmente em um estúdio de som. deste modo, o decodificador (20) pode lidar eficazmente com uma situação na qual um mistura abaixo alternativa (103) é recebida em vez da mistura abaixo espacial (102) habitual. no decodificador (20), primeiro a mistura abaixo espacial (202) é reconstruída do mistura abaixo alternativa (103) e dos parâmetros (105). a seguir, a mistura abaixo espacial (202) é decodificada no sinal de áudio de multi-canal (203).
BRPI0608945A 2005-03-30 2006-03-16 codificador de áudio de multi-canal, decodificador de áudio de multi-canal, método de codificar n sinais de áudio em m sinais de áudio e dados paramétricos associados, método de decodificar k sinais de áudio e dados paramétricos associados, método de transmitir e receber um sinal de áudio de multi-canal codificado, mídia de armazenamento legível por computador, e, sistema de transmissão BRPI0608945C8 (pt)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
EP05102515 2005-03-30
EP05102515.3 2005-03-30
EP05103085.6 2005-04-18
EP05103085 2005-04-18
PCT/IB2006/050822 WO2006103584A1 (en) 2005-03-30 2006-03-16 Multi-channel audio coding

Publications (4)

Publication Number Publication Date
BRPI0608945A2 BRPI0608945A2 (pt) 2010-11-16
BRPI0608945B1 BRPI0608945B1 (pt) 2019-05-28
BRPI0608945B8 true BRPI0608945B8 (pt) 2020-12-01
BRPI0608945C8 BRPI0608945C8 (pt) 2020-12-22

Family

ID=36579565

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0608945A BRPI0608945C8 (pt) 2005-03-30 2006-03-16 codificador de áudio de multi-canal, decodificador de áudio de multi-canal, método de codificar n sinais de áudio em m sinais de áudio e dados paramétricos associados, método de decodificar k sinais de áudio e dados paramétricos associados, método de transmitir e receber um sinal de áudio de multi-canal codificado, mídia de armazenamento legível por computador, e, sistema de transmissão

Country Status (11)

Country Link
US (1) US8346564B2 (pt)
EP (1) EP1866912B1 (pt)
JP (1) JP4610650B2 (pt)
KR (1) KR101271069B1 (pt)
AT (1) ATE473502T1 (pt)
BR (1) BRPI0608945C8 (pt)
DE (1) DE602006015294D1 (pt)
MX (1) MX2007011915A (pt)
PL (1) PL1866912T3 (pt)
RU (2) RU2411594C2 (pt)
WO (1) WO2006103584A1 (pt)

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Also Published As

Publication number Publication date
RU2407073C2 (ru) 2010-12-20
BRPI0608945C8 (pt) 2020-12-22
DE602006015294D1 (de) 2010-08-19
RU2007139918A (ru) 2009-05-10
MX2007011915A (es) 2007-11-22
US20100153097A1 (en) 2010-06-17
JP2008535356A (ja) 2008-08-28
KR20070118161A (ko) 2007-12-13
US8346564B2 (en) 2013-01-01
KR101271069B1 (ko) 2013-06-04
EP1866912A1 (en) 2007-12-19
RU2411594C2 (ru) 2011-02-10
JP4610650B2 (ja) 2011-01-12
WO2006103584A1 (en) 2006-10-05
ATE473502T1 (de) 2010-07-15
BRPI0608945B1 (pt) 2019-05-28
EP1866912B1 (en) 2010-07-07
PL1866912T3 (pl) 2011-03-31
RU2007139922A (ru) 2009-05-10
BRPI0608945A2 (pt) 2010-11-16

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