BRPI0516405A - conformação individual de canal para esquemas bcc e similares - Google Patents

conformação individual de canal para esquemas bcc e similares

Info

Publication number
BRPI0516405A
BRPI0516405A BRPI0516405-2A BRPI0516405A BRPI0516405A BR PI0516405 A BRPI0516405 A BR PI0516405A BR PI0516405 A BRPI0516405 A BR PI0516405A BR PI0516405 A BRPI0516405 A BR PI0516405A
Authority
BR
Brazil
Prior art keywords
audio
envelope
channel
channels
temporal envelope
Prior art date
Application number
BRPI0516405-2A
Other languages
English (en)
Inventor
Eric Allamanche
Sascha Disch
Christof Faller
Juergen Herre
Original Assignee
Fraunhofer Ges Forschung
Agere Systems Inc
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, Agere Systems Inc filed Critical Fraunhofer Ges Forschung
Publication of BRPI0516405A publication Critical patent/BRPI0516405A/pt
Publication of BRPI0516405A8 publication Critical patent/BRPI0516405A8/pt
Publication of BRPI0516405B1 publication Critical patent/BRPI0516405B1/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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Mathematical Physics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Stereophonic System (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Outer Garments And Coats (AREA)
  • Superheterodyne Receivers (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Steroid Compounds (AREA)

Abstract

CONFORMAçãO INDIVIDUAL DE CANAL PARA ESQUEMAS BCC E SIMILARES. Em um codificador de áudio, são gerados códigos de sinalização para um ou mais canais de áudio, caracterizados pelo fato de que um código de sinalização de envelope é gerado pela caracterização de um envelope temporal em um canal de áudio. Em um decodificador de áudio, E canal(is) de áudio transmitido(s) são decodificados para gerar C canais de áudio playback, onde C>E<sym>1. Os códigos de sinalização recebidos incluem um código de sinalização de envelope que corresponde a um envelope temporal caracterizado de um canal de áudio que corresponde ao(s) canal(is) transmitido(s). Um ou mais canal(is) transmitido(s) são upmixados para gerar um ou mais canais upmixados. Um ou mais canais de playback são sintetizados pela aplicação dos códigos de sinalização ao um ou mais canais upmixados, em que o código de sinalização de envelope é aplicado a um canal upmixado ou a um sinal sintetizado para ajustar um envelope temporal do sinal sintetizado baseado no envelope temporal caracterizado de maneira que o envelope temporal ajustado combine substancialmente com o envelope temporal caracterizado.
BRPI0516405-2A 2004-10-20 2005-09-07 Conformação individual de canal para esquemas bcc e similares BRPI0516405B1 (pt)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US62048004P 2004-10-20 2004-10-20
US60/620,480 2004-10-20
US11/006,482 US7720230B2 (en) 2004-10-20 2004-12-07 Individual channel shaping for BCC schemes and the like
US11/006,482 2004-12-07
PCT/EP2005/009618 WO2006045371A1 (en) 2004-10-20 2005-09-07 Individual channel temporal envelope shaping for binaural cue coding schemes and the like

Publications (3)

Publication Number Publication Date
BRPI0516405A true BRPI0516405A (pt) 2008-09-02
BRPI0516405A8 BRPI0516405A8 (pt) 2018-07-31
BRPI0516405B1 BRPI0516405B1 (pt) 2019-09-17

Family

ID=36180779

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0516405-2A BRPI0516405B1 (pt) 2004-10-20 2005-09-07 Conformação individual de canal para esquemas bcc e similares

Country Status (20)

Country Link
US (1) US7720230B2 (pt)
EP (1) EP1803117B1 (pt)
JP (1) JP4664371B2 (pt)
KR (1) KR100924576B1 (pt)
CN (1) CN101044551B (pt)
AT (1) ATE424606T1 (pt)
AU (1) AU2005299068B2 (pt)
BR (1) BRPI0516405B1 (pt)
CA (1) CA2582485C (pt)
DE (1) DE602005013103D1 (pt)
DK (1) DK1803117T3 (pt)
ES (1) ES2323275T3 (pt)
IL (1) IL182236A (pt)
MX (1) MX2007004726A (pt)
NO (1) NO338919B1 (pt)
PL (1) PL1803117T3 (pt)
PT (1) PT1803117E (pt)
RU (1) RU2339088C1 (pt)
TW (1) TWI318079B (pt)
WO (1) WO2006045371A1 (pt)

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TW200628001A (en) 2006-08-01
EP1803117B1 (en) 2009-03-04
CA2582485C (en) 2012-05-15
US20060083385A1 (en) 2006-04-20
CN101044551B (zh) 2012-02-08
EP1803117A1 (en) 2007-07-04
PT1803117E (pt) 2009-06-15
NO338919B1 (no) 2016-10-31
KR20070061872A (ko) 2007-06-14
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AU2005299068B2 (en) 2008-10-30
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ATE424606T1 (de) 2009-03-15
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AU2005299068A1 (en) 2006-05-04
BRPI0516405B1 (pt) 2019-09-17
RU2339088C1 (ru) 2008-11-20
NO20071493L (no) 2007-05-22
HK1106861A1 (en) 2008-03-20
CA2582485A1 (en) 2006-05-04
KR100924576B1 (ko) 2009-11-02
ES2323275T3 (es) 2009-07-10
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