BRPI0607166A2 - codificação paramétrica conjunta de fontes de áudio - Google Patents

codificação paramétrica conjunta de fontes de áudio

Info

Publication number
BRPI0607166A2
BRPI0607166A2 BRPI0607166-0A BRPI0607166A BRPI0607166A2 BR PI0607166 A2 BRPI0607166 A2 BR PI0607166A2 BR PI0607166 A BRPI0607166 A BR PI0607166A BR PI0607166 A2 BRPI0607166 A2 BR PI0607166A2
Authority
BR
Brazil
Prior art keywords
source signals
coding
properties
signals
statistical properties
Prior art date
Application number
BRPI0607166-0A
Other languages
English (en)
Inventor
Christof Faller
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=34938725&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BRPI0607166(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Fraunhofer Ges Forschung filed Critical Fraunhofer Ges Forschung
Priority to BR122018072504-4A priority Critical patent/BR122018072504B1/pt
Priority to BR122018072505-2A priority patent/BR122018072505B1/pt
Priority to BR122018072508-7A priority patent/BR122018072508B1/pt
Priority to BR122018072501-0A priority patent/BR122018072501B1/pt
Publication of BRPI0607166A2 publication Critical patent/BRPI0607166A2/pt
Publication of BRPI0607166B1 publication Critical patent/BRPI0607166B1/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
    • G10L19/02—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
    • 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
    • G10L19/0204—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 using subband decomposition
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
    • H04S7/30—Control circuits for electronic adaptation of the sound field
    • H04S7/307—Frequency adjustment, e.g. tone control
    • 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
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/233—Processing of audio elementary streams
    • 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
    • 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
    • H04S2420/13—Application of wave-field synthesis in stereophonic audio systems
    • 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 
    • H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Mathematical Physics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Stereophonic System (AREA)

Abstract

CODIFICAçAO PARAMéTRICA CONJUNTA DE FONTES DE áUDIO. O seguinte cenário de codificação é abordado: diversos sinais de fonte de áudio precisam ser transmitidos ou armazenados para fins de mixagem de síntese de campo de onda, sinais surround de multicanais ou sinais estéreos após a decodificação dos sinais de fonte. A técnica proposta oferece significativo ganho de codificação ao se realizar a codificação conjunta dos sinais de fonte em comparação à codificação separada destes, mesmo quando nenhuma redundância estiver presente entre os sinais de fonte. Isto é possível considerando as propriedades estatísticas dos sinais de fonte, as propriedades das técnicas de mixagem e a audição espacial. A soma dos sinais de fonte é transmitida com as propriedades estatísticas dos sinais de fonte que predominantemente determinam os cues espaciais perceptivelmente importantes dos canais de áudio finais mixados. Os sinais de fonte são recuperados no receptor, de modo que suas propriedades estatísticas se aproximem das propriedades correspondentes dos sinais de fonte originais. Avaliações subjetivas indicam que a alta qualidade de áudio é obtida utilizando-se o esquema proposto.
BRPI0607166-0A 2005-02-14 2006-02-13 Codificação paramétrica conjunta de fontes de áudio BRPI0607166B1 (pt)

Priority Applications (4)

Application Number Priority Date Filing Date Title
BR122018072504-4A BR122018072504B1 (pt) 2005-02-14 2006-02-13 Codificação paramétrica conjunta de fontes de áudio
BR122018072505-2A BR122018072505B1 (pt) 2005-02-14 2006-02-13 Codificação paramétrica conjunta de fontes de áudio
BR122018072508-7A BR122018072508B1 (pt) 2005-02-14 2006-02-13 Codificação paramétrica conjunta de fontes de áudio
BR122018072501-0A BR122018072501B1 (pt) 2005-02-14 2006-02-13 Codificação paramétrica conjunta de fontes de áudio

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP05101055.1 2005-02-14
EP05101055A EP1691348A1 (en) 2005-02-14 2005-02-14 Parametric joint-coding of audio sources
PCT/EP2006/050904 WO2006084916A2 (en) 2005-02-14 2006-02-13 Parametric joint-coding of audio sources

Publications (2)

Publication Number Publication Date
BRPI0607166A2 true BRPI0607166A2 (pt) 2009-08-11
BRPI0607166B1 BRPI0607166B1 (pt) 2019-06-25

Family

ID=34938725

Family Applications (5)

Application Number Title Priority Date Filing Date
BR122018072508-7A BR122018072508B1 (pt) 2005-02-14 2006-02-13 Codificação paramétrica conjunta de fontes de áudio
BRPI0607166-0A BRPI0607166B1 (pt) 2005-02-14 2006-02-13 Codificação paramétrica conjunta de fontes de áudio
BR122018072505-2A BR122018072505B1 (pt) 2005-02-14 2006-02-13 Codificação paramétrica conjunta de fontes de áudio
BR122018072504-4A BR122018072504B1 (pt) 2005-02-14 2006-02-13 Codificação paramétrica conjunta de fontes de áudio
BR122018072501-0A BR122018072501B1 (pt) 2005-02-14 2006-02-13 Codificação paramétrica conjunta de fontes de áudio

Family Applications Before (1)

Application Number Title Priority Date Filing Date
BR122018072508-7A BR122018072508B1 (pt) 2005-02-14 2006-02-13 Codificação paramétrica conjunta de fontes de áudio

Family Applications After (3)

Application Number Title Priority Date Filing Date
BR122018072505-2A BR122018072505B1 (pt) 2005-02-14 2006-02-13 Codificação paramétrica conjunta de fontes de áudio
BR122018072504-4A BR122018072504B1 (pt) 2005-02-14 2006-02-13 Codificação paramétrica conjunta de fontes de áudio
BR122018072501-0A BR122018072501B1 (pt) 2005-02-14 2006-02-13 Codificação paramétrica conjunta de fontes de áudio

Country Status (17)

Country Link
US (12) US8355509B2 (pt)
EP (4) EP1691348A1 (pt)
JP (2) JP5179881B2 (pt)
KR (1) KR100924577B1 (pt)
CN (2) CN101133441B (pt)
AT (1) ATE531035T1 (pt)
AU (3) AU2006212191B2 (pt)
BR (5) BR122018072508B1 (pt)
CA (2) CA2707761C (pt)
ES (2) ES2682073T3 (pt)
IL (1) IL185192A (pt)
MX (1) MX2007009559A (pt)
NO (1) NO338701B1 (pt)
PL (1) PL1844465T3 (pt)
RU (1) RU2376654C2 (pt)
TR (1) TR201811059T4 (pt)
WO (1) WO2006084916A2 (pt)

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