BRPI0605641A - equipamento e método para a geração de sinal de controle sintetizador multicanais e equipamento e método para sintetizar multicanais - Google Patents

equipamento e método para a geração de sinal de controle sintetizador multicanais e equipamento e método para sintetizar multicanais

Info

Publication number
BRPI0605641A
BRPI0605641A BRPI0605641-5A BRPI0605641A BRPI0605641A BR PI0605641 A BRPI0605641 A BR PI0605641A BR PI0605641 A BRPI0605641 A BR PI0605641A BR PI0605641 A BRPI0605641 A BR PI0605641A
Authority
BR
Brazil
Prior art keywords
multichannel
equipment
synthesizer control
multichannel synthesizer
control signal
Prior art date
Application number
BRPI0605641-5A
Other languages
English (en)
Inventor
Matthias Neusinger
Juergen Herre
Sascha Disch
Heiko Purnhagen
Kristofer Kjoerling
Jonas Engdegard
Jeroen Breebaart
Erik Schuijers
Werner Oomen
Original Assignee
Fraunhofer Ges Forschung
Koninkl Philips Electronics Nv
Coding Tech Ab
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, Koninkl Philips Electronics Nv, Coding Tech Ab filed Critical Fraunhofer Ges Forschung
Publication of BRPI0605641A publication Critical patent/BRPI0605641A/pt
Publication of BRPI0605641B1 publication Critical patent/BRPI0605641B1/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
    • G10L19/04—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
    • G10L19/26—Pre-filtering or post-filtering
    • 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 
    • H04S5/00—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation 
    • 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
    • G10L2019/0001—Codebooks
    • G10L2019/0012—Smoothing of parameters of the decoder interpolation
    • 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)
  • Multimedia (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Health & Medical Sciences (AREA)
  • Computational Linguistics (AREA)
  • Mathematical Physics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Stereophonic System (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Electrophonic Musical Instruments (AREA)

Abstract

EQUIPAMENTO E MéTODO PARA A GERAçãO DE SINAL DE CONTROLE SINTETIZADOR MULTICANAIS E EQUIPAMENTO E MéTODO PARA SINTETIZAR MULTICANAIS. é analisado um sinal de entrada multicanais no lado do codificador, para a obtenção de informações de controle de suavização, que devem ser usadas por uma síntese multicanais no lado do decodificador para a suavização de parâmetros de suavização quantizados transmitidos ou valores derivados dos parâmetros quantizados transmitidos para prover uma qualidade subjetiva de áudio aperfeiçoada, em particular para fontes pontuais de movimentação lenta e fontes pontuais de movimentação rápida, tendo material tonal do tipo senóides de rápida movimentação.
BRPI0605641A 2005-04-15 2006-01-19 equipamento e método para a geração de sinal de controle sintetizador multicanais e equipamento e método para sintetizar multicanais BRPI0605641B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US67158205P 2005-04-15 2005-04-15
US11/212,395 US7983922B2 (en) 2005-04-15 2005-08-27 Apparatus and method for generating multi-channel synthesizer control signal and apparatus and method for multi-channel synthesizing
PCT/EP2006/000455 WO2006108456A1 (en) 2005-04-15 2006-01-19 Apparatus and method for generating multi-channel synthesizer control signal and apparatus and method for multi-channel synthesizing

Publications (2)

Publication Number Publication Date
BRPI0605641A true BRPI0605641A (pt) 2007-12-18
BRPI0605641B1 BRPI0605641B1 (pt) 2020-04-07

Family

ID=36274412

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0605641A BRPI0605641B1 (pt) 2005-04-15 2006-01-19 equipamento e método para a geração de sinal de controle sintetizador multicanais e equipamento e método para sintetizar multicanais

Country Status (17)

Country Link
US (2) US7983922B2 (pt)
EP (1) EP1738356B1 (pt)
JP (3) JP5511136B2 (pt)
KR (1) KR100904542B1 (pt)
CN (1) CN101816040B (pt)
AU (1) AU2006233504B2 (pt)
BR (1) BRPI0605641B1 (pt)
CA (1) CA2566992C (pt)
ES (1) ES2399058T3 (pt)
IL (1) IL180046A (pt)
MX (1) MXPA06014987A (pt)
MY (1) MY141404A (pt)
NO (1) NO338934B1 (pt)
PL (1) PL1738356T3 (pt)
RU (1) RU2361288C2 (pt)
TW (1) TWI307248B (pt)
WO (1) WO2006108456A1 (pt)

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