BRPI0816557A2 - codificação de áudio usando upmix - Google Patents

codificação de áudio usando upmix

Info

Publication number
BRPI0816557A2
BRPI0816557A2 BRPI0816557A BRPI0816557A BRPI0816557A2 BR PI0816557 A2 BRPI0816557 A2 BR PI0816557A2 BR PI0816557 A BRPI0816557 A BR PI0816557A BR PI0816557 A BRPI0816557 A BR PI0816557A BR PI0816557 A2 BRPI0816557 A2 BR PI0816557A2
Authority
BR
Brazil
Prior art keywords
upmix
audio coding
coding
audio
Prior art date
Application number
BRPI0816557A
Other languages
English (en)
Inventor
Falch Cornelia
Hellmuth Oliver
Herre Juergen
Hilpert Johannes
Hoelzer Andreas
Terentiev Leonid
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=40149576&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BRPI0816557(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
Publication of BRPI0816557A2 publication Critical patent/BRPI0816557A2/pt
Publication of BRPI0816557B1 publication Critical patent/BRPI0816557B1/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
    • 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
    • G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
    • 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
    • H04S3/002—Non-adaptive circuits, e.g. manually adjustable or static, for enhancing the sound image or the spatial distribution
    • 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
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/20—Vocoders using multiple modes using sound class specific coding, hybrid encoders or object based coding
    • 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
    • H04S2420/07—Synergistic effects of band splitting and sub-band processing

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Human Computer Interaction (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Multimedia (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Stereophonic System (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
BRPI0816557-2A 2007-10-17 2008-10-17 Codificação de áudio usando upmix BRPI0816557B1 (pt)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US98057107P 2007-10-17 2007-10-17
US60/980,571 2007-10-17
US99133507P 2007-11-30 2007-11-30
US60/991,335 2007-11-30
PCT/EP2008/008800 WO2009049896A1 (en) 2007-10-17 2008-10-17 Audio coding using upmix

Publications (2)

Publication Number Publication Date
BRPI0816557A2 true BRPI0816557A2 (pt) 2016-03-01
BRPI0816557B1 BRPI0816557B1 (pt) 2020-02-18

Family

ID=40149576

Family Applications (2)

Application Number Title Priority Date Filing Date
BRPI0816556A BRPI0816556A2 (pt) 2007-10-17 2008-10-17 codificação de áudio usando downmix
BRPI0816557-2A BRPI0816557B1 (pt) 2007-10-17 2008-10-17 Codificação de áudio usando upmix

Family Applications Before (1)

Application Number Title Priority Date Filing Date
BRPI0816556A BRPI0816556A2 (pt) 2007-10-17 2008-10-17 codificação de áudio usando downmix

Country Status (12)

Country Link
US (4) US8155971B2 (pt)
EP (2) EP2082396A1 (pt)
JP (2) JP5883561B2 (pt)
KR (4) KR101244515B1 (pt)
CN (2) CN101849257B (pt)
AU (2) AU2008314030B2 (pt)
BR (2) BRPI0816556A2 (pt)
CA (2) CA2701457C (pt)
MX (2) MX2010004138A (pt)
RU (2) RU2474887C2 (pt)
TW (2) TWI395204B (pt)
WO (2) WO2009049895A1 (pt)

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