CA2918529C - Apparatus and method for realizing a saoc downmix of 3d audio content - Google Patents

Apparatus and method for realizing a saoc downmix of 3d audio content Download PDF

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Publication number
CA2918529C
CA2918529C CA2918529A CA2918529A CA2918529C CA 2918529 C CA2918529 C CA 2918529C CA 2918529 A CA2918529 A CA 2918529A CA 2918529 A CA2918529 A CA 2918529A CA 2918529 C CA2918529 C CA 2918529C
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Prior art keywords
audio
channels
information
depending
mixing rule
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English (en)
French (fr)
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CA2918529A1 (en
Inventor
Sascha Disch
Harald Fuchs
Oliver Hellmuth
Jurgen Herre
Adrian Murtaza
Falko Ridderbusch
Leon Terentiv
Jouni PAULUS
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Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV
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Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV
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Priority claimed from EP20130177378 external-priority patent/EP2830045A1/en
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/02—Systems employing more than two channels, e.g. quadraphonic of the matrix type, i.e. in which input signals are combined algebraically, e.g. after having been phase shifted with respect to each other
    • 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
    • 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 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/006—Systems employing more than two channels, e.g. quadraphonic in which a plurality of audio signals are transformed in a combination of audio signals and modulated signals, e.g. CD-4 systems
    • 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
    • H04S7/305—Electronic adaptation of stereophonic audio signals to reverberation of the listening space
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
    • H04S2400/01—Multi-channel, i.e. more than two input channels, sound reproduction with two speakers wherein the multi-channel information is substantially preserved
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
    • H04S2400/03—Aspects of down-mixing multi-channel audio to configurations with lower numbers of playback channels, e.g. 7.1 -> 5.1
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
    • H04S2400/11—Positioning of individual sound objects, e.g. moving airplane, within a sound field
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
    • H04S2400/13—Aspects of volume control, not necessarily automatic, in stereophonic sound 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
    • H04S2420/03—Application of parametric coding in stereophonic audio systems

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Mathematical Physics (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • General Physics & Mathematics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Algebra (AREA)
  • Stereophonic System (AREA)
CA2918529A 2013-07-22 2014-07-16 Apparatus and method for realizing a saoc downmix of 3d audio content Active CA2918529C (en)

Applications Claiming Priority (9)

Application Number Priority Date Filing Date Title
EP13177357 2013-07-22
EP13177357.4 2013-07-22
EP13177371.5 2013-07-22
EP13177378.0 2013-07-22
EP13177371 2013-07-22
EP20130177378 EP2830045A1 (en) 2013-07-22 2013-07-22 Concept for audio encoding and decoding for audio channels and audio objects
EP13189281.2 2013-10-18
EP13189281.2A EP2830048A1 (en) 2013-07-22 2013-10-18 Apparatus and method for realizing a SAOC downmix of 3D audio content
PCT/EP2014/065290 WO2015010999A1 (en) 2013-07-22 2014-07-16 Apparatus and method for realizing a saoc downmix of 3d audio content

Publications (2)

Publication Number Publication Date
CA2918529A1 CA2918529A1 (en) 2015-01-29
CA2918529C true CA2918529C (en) 2018-05-22

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Family Applications (2)

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CA2918529A Active CA2918529C (en) 2013-07-22 2014-07-16 Apparatus and method for realizing a saoc downmix of 3d audio content
CA2918869A Active CA2918869C (en) 2013-07-22 2014-07-17 Apparatus and method for enhanced spatial audio object coding

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CA2918869A Active CA2918869C (en) 2013-07-22 2014-07-17 Apparatus and method for enhanced spatial audio object coding

Country Status (18)

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US (4) US9578435B2 (enExample)
EP (4) EP2830050A1 (enExample)
JP (3) JP6395827B2 (enExample)
KR (2) KR101774796B1 (enExample)
CN (3) CN112839296B (enExample)
AU (2) AU2014295270B2 (enExample)
BR (2) BR112016001244B1 (enExample)
CA (2) CA2918529C (enExample)
ES (2) ES2768431T3 (enExample)
MX (2) MX355589B (enExample)
MY (2) MY176990A (enExample)
PL (2) PL3025333T3 (enExample)
PT (1) PT3025333T (enExample)
RU (2) RU2666239C2 (enExample)
SG (2) SG11201600460UA (enExample)
TW (2) TWI560700B (enExample)
WO (2) WO2015010999A1 (enExample)
ZA (1) ZA201600984B (enExample)

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