BRPI0515623A - dispositivo e método para a geração de um sinal multicanais codificado e dispositivo e método para a decodificação de um sinal multicanais codificado - Google Patents

dispositivo e método para a geração de um sinal multicanais codificado e dispositivo e método para a decodificação de um sinal multicanais codificado

Info

Publication number
BRPI0515623A
BRPI0515623A BRPI0515623-8A BRPI0515623A BRPI0515623A BR PI0515623 A BRPI0515623 A BR PI0515623A BR PI0515623 A BRPI0515623 A BR PI0515623A BR PI0515623 A BRPI0515623 A BR PI0515623A
Authority
BR
Brazil
Prior art keywords
multichannel
coded
multichannel signal
decoding
generating
Prior art date
Application number
BRPI0515623-8A
Other languages
English (en)
Inventor
Juergen Herre
Ralph Sperschneider
Johannes Hilpert
Karsten Linzmeier
Harald Popp
Original Assignee
Fraunhofer Ges Forschung
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 Fraunhofer Ges Forschung filed Critical Fraunhofer Ges Forschung
Publication of BRPI0515623A publication Critical patent/BRPI0515623A/pt
Publication of BRPI0515623A8 publication Critical patent/BRPI0515623A8/pt
Publication of BRPI0515623B1 publication Critical patent/BRPI0515623B1/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
    • 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)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computational Linguistics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Health & Medical Sciences (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Stereophonic System (AREA)
  • Error Detection And Correction (AREA)

Abstract

"DISPOSITIVO E MéTODO PARA A GERAçãO DE UM SINAL MULTICANAIS CODIFICADO E DISPOSITIVO E MéTODO PARA A DECODIFICAçãO DE UM SINAL MULTICANAIS CODIFICADO". Em um codificador multicanais que gera vários diferentes conjuntos de parâmetros para a reconstrução de um sinal de saída multicanais usando pelo menos um canal de transmissão, a taxa de dados (26) é escrita (25) de maneira que dois conjuntos de parâmetros sejam decodificáveis de maneira independente entre si. Assim, um decodificador multicanais pode pular um conjunto de parâmetros marcado como opcional e/ou ter um número de versão maior ao ler a taxa de dados e ainda realizar uma reconstrução multicanais válida usando um conjunto de dados marcado como obrigatório ou um conjunto de dados com um número de versão suficientemente baixo. Isto obtém um conceito flexível codificador/decodificador, adequado para futuras atualizações, caracterizadas por retro compatibilidade e confiabilidade.
BRPI0515623-8A 2004-09-03 2005-08-29 Dispositivo e método para a geração de um sinal multicanais codificado e dispositivo e método para a decodificação de um sinal multicanais codificado BRPI0515623B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102004042819.0 2004-09-03
DE102004042819A DE102004042819A1 (de) 2004-09-03 2004-09-03 Vorrichtung und Verfahren zum Erzeugen eines codierten Multikanalsignals und Vorrichtung und Verfahren zum Decodieren eines codierten Multikanalsignals
PCT/EP2005/009293 WO2006027138A1 (de) 2004-09-03 2005-08-29 Erzeugung eines codierten multikanalsignals und decodierung eines codierten multikanalsignals

Publications (3)

Publication Number Publication Date
BRPI0515623A true BRPI0515623A (pt) 2008-07-29
BRPI0515623A8 BRPI0515623A8 (pt) 2018-07-31
BRPI0515623B1 BRPI0515623B1 (pt) 2019-05-21

Family

ID=35094601

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0515623-8A BRPI0515623B1 (pt) 2004-09-03 2005-08-29 Dispositivo e método para a geração de um sinal multicanais codificado e dispositivo e método para a decodificação de um sinal multicanais codificado

Country Status (16)

Country Link
US (1) US8145498B2 (pt)
EP (1) EP1763870B1 (pt)
JP (1) JP4856641B2 (pt)
KR (1) KR100908081B1 (pt)
CN (1) CN101044550B (pt)
AU (1) AU2005281937B2 (pt)
BR (1) BRPI0515623B1 (pt)
CA (1) CA2578190C (pt)
DE (1) DE102004042819A1 (pt)
ES (1) ES2454670T3 (pt)
IL (1) IL181469A (pt)
MX (1) MX2007002569A (pt)
NO (1) NO338928B1 (pt)
PL (1) PL1763870T3 (pt)
RU (1) RU2379768C2 (pt)
WO (1) WO2006027138A1 (pt)

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Also Published As

Publication number Publication date
NO20070903L (no) 2007-04-03
MX2007002569A (es) 2007-07-05
ES2454670T3 (es) 2014-04-11
IL181469A0 (en) 2007-07-04
EP1763870A1 (de) 2007-03-21
CN101044550A (zh) 2007-09-26
CN101044550B (zh) 2011-05-11
US8145498B2 (en) 2012-03-27
KR100908081B1 (ko) 2009-07-15
KR20070051875A (ko) 2007-05-18
RU2007112113A (ru) 2008-10-20
JP4856641B2 (ja) 2012-01-18
CA2578190C (en) 2012-09-11
AU2005281937A1 (en) 2006-03-16
AU2005281937B2 (en) 2008-10-09
IL181469A (en) 2011-09-27
PL1763870T3 (pl) 2014-08-29
BRPI0515623A8 (pt) 2018-07-31
CA2578190A1 (en) 2006-03-16
NO338928B1 (no) 2016-10-31
BRPI0515623B1 (pt) 2019-05-21
US20070219808A1 (en) 2007-09-20
EP1763870B1 (de) 2014-03-05
JP2008511848A (ja) 2008-04-17
HK1107174A1 (en) 2008-03-28
DE102004042819A1 (de) 2006-03-23
RU2379768C2 (ru) 2010-01-20
WO2006027138A1 (de) 2006-03-16

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B15K Others concerning applications: alteration of classification

Ipc: G10L 19/008 (2013.01), H04S 3/00 (2006.01)

B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

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