CA2933562C - Transitioning of ambient higher-order ambisonic coefficients - Google Patents

Transitioning of ambient higher-order ambisonic coefficients Download PDF

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Publication number
CA2933562C
CA2933562C CA2933562A CA2933562A CA2933562C CA 2933562 C CA2933562 C CA 2933562C CA 2933562 A CA2933562 A CA 2933562A CA 2933562 A CA2933562 A CA 2933562A CA 2933562 C CA2933562 C CA 2933562C
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Prior art keywords
frame
transition
vector
order ambisonic
ambient
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French (fr)
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CA2933562A1 (en
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Nils Gunther Peters
Dipanjan Sen
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Qualcomm Inc
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Qualcomm Inc
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    • 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
    • G10L19/002—Dynamic bit allocation
    • 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
    • G10L19/032—Quantisation or dequantisation of spectral components
    • G10L19/038—Vector quantisation, e.g. TwinVQ audio
    • 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
    • H04S2420/11—Application of ambisonics in stereophonic audio systems

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  • 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)
  • Stereophonic System (AREA)
CA2933562A 2014-01-30 2015-01-28 Transitioning of ambient higher-order ambisonic coefficients Active CA2933562C (en)

Applications Claiming Priority (15)

Application Number Priority Date Filing Date Title
US201461933706P 2014-01-30 2014-01-30
US201461933714P 2014-01-30 2014-01-30
US61/933,714 2014-01-30
US61/933,706 2014-01-30
US201461949591P 2014-03-07 2014-03-07
US201461949583P 2014-03-07 2014-03-07
US61/949,583 2014-03-07
US61/949,591 2014-03-07
US201462004067P 2014-05-28 2014-05-28
US62/004,067 2014-05-28
US201462029173P 2014-07-25 2014-07-25
US62/029,173 2014-07-25
US14/594,533 US9922656B2 (en) 2014-01-30 2015-01-12 Transitioning of ambient higher-order ambisonic coefficients
US14/594,533 2015-01-12
PCT/US2015/013267 WO2015116666A1 (en) 2014-01-30 2015-01-28 Transitioning of ambient higher-order ambisonic coefficients

Publications (2)

Publication Number Publication Date
CA2933562A1 CA2933562A1 (en) 2015-08-06
CA2933562C true CA2933562C (en) 2021-03-16

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CA2933562A Active CA2933562C (en) 2014-01-30 2015-01-28 Transitioning of ambient higher-order ambisonic coefficients

Country Status (10)

Country Link
US (1) US9922656B2 (enExample)
EP (1) EP3100263B1 (enExample)
JP (1) JP6510541B2 (enExample)
KR (1) KR101958529B1 (enExample)
CN (1) CN105940447B (enExample)
BR (1) BR112016017278B1 (enExample)
CA (1) CA2933562C (enExample)
ES (1) ES2674819T3 (enExample)
HU (1) HUE037842T2 (enExample)
WO (1) WO2015116666A1 (enExample)

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HUE037842T2 (hu) 2018-09-28
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