CA2891636C - Method and apparatus for compressing and decompressing a higher order ambisonics representation for a sound field - Google Patents

Method and apparatus for compressing and decompressing a higher order ambisonics representation for a sound field Download PDF

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Publication number
CA2891636C
CA2891636C CA2891636A CA2891636A CA2891636C CA 2891636 C CA2891636 C CA 2891636C CA 2891636 A CA2891636 A CA 2891636A CA 2891636 A CA2891636 A CA 2891636A CA 2891636 C CA2891636 C CA 2891636C
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Prior art keywords
hoa
directional signals
signals
residual
dominant
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CA2891636A
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English (en)
French (fr)
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CA2891636A1 (en
Inventor
Alexander Krueger
Sven Kordon
Johannes Boehm
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Dolby International AB
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Dolby International AB
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Priority to CA3125228A priority Critical patent/CA3125228C/en
Priority to CA3125248A priority patent/CA3125248C/en
Priority to CA3125246A priority patent/CA3125246C/en
Publication of CA2891636A1 publication Critical patent/CA2891636A1/en
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    • 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
    • H04S7/302—Electronic adaptation of stereophonic sound system to listener position or orientation
    • 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
    • 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
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/86—Arrangements characterised by the broadcast information itself
    • H04H20/88—Stereophonic broadcast systems
    • H04H20/89—Stereophonic broadcast systems using three or more audio channels, e.g. triphonic or quadraphonic
    • 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 
    • 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)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computational Linguistics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Health & Medical Sciences (AREA)
  • Mathematical Physics (AREA)
  • Stereophonic System (AREA)
  • Percussion Or Vibration Massage (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
CA2891636A 2012-12-12 2013-12-04 Method and apparatus for compressing and decompressing a higher order ambisonics representation for a sound field Active CA2891636C (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CA3125228A CA3125228C (en) 2012-12-12 2013-12-04 Method and apparatus for compressing and decompressing a higher order ambisonics representation for a sound field
CA3125248A CA3125248C (en) 2012-12-12 2013-12-04 Method and apparatus for compressing and decompressing a higher order ambisonics representation for a sound field
CA3125246A CA3125246C (en) 2012-12-12 2013-12-04 Method and apparatus for compressing and decompressing a higher order ambisonics representation for a sound field

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP12306569.0 2012-12-12
EP12306569.0A EP2743922A1 (en) 2012-12-12 2012-12-12 Method and apparatus for compressing and decompressing a higher order ambisonics representation for a sound field
PCT/EP2013/075559 WO2014090660A1 (en) 2012-12-12 2013-12-04 Method and apparatus for compressing and decompressing a higher order ambisonics representation for a sound field

Related Child Applications (3)

Application Number Title Priority Date Filing Date
CA3125248A Division CA3125248C (en) 2012-12-12 2013-12-04 Method and apparatus for compressing and decompressing a higher order ambisonics representation for a sound field
CA3125246A Division CA3125246C (en) 2012-12-12 2013-12-04 Method and apparatus for compressing and decompressing a higher order ambisonics representation for a sound field
CA3125228A Division CA3125228C (en) 2012-12-12 2013-12-04 Method and apparatus for compressing and decompressing a higher order ambisonics representation for a sound field

Publications (2)

Publication Number Publication Date
CA2891636A1 CA2891636A1 (en) 2014-06-19
CA2891636C true CA2891636C (en) 2021-09-21

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Family Applications (6)

Application Number Title Priority Date Filing Date
CA2891636A Active CA2891636C (en) 2012-12-12 2013-12-04 Method and apparatus for compressing and decompressing a higher order ambisonics representation for a sound field
CA3125228A Active CA3125228C (en) 2012-12-12 2013-12-04 Method and apparatus for compressing and decompressing a higher order ambisonics representation for a sound field
CA3168326A Pending CA3168326A1 (en) 2012-12-12 2013-12-04 Method and apparatus for compressing and decompressing a higher order ambisonics representation for a sound field
CA3168322A Active CA3168322C (en) 2012-12-12 2013-12-04 Method and apparatus for compressing and decompressing a higher order ambisonics representation for a sound field
CA3125248A Active CA3125248C (en) 2012-12-12 2013-12-04 Method and apparatus for compressing and decompressing a higher order ambisonics representation for a sound field
CA3125246A Active CA3125246C (en) 2012-12-12 2013-12-04 Method and apparatus for compressing and decompressing a higher order ambisonics representation for a sound field

Family Applications After (5)

Application Number Title Priority Date Filing Date
CA3125228A Active CA3125228C (en) 2012-12-12 2013-12-04 Method and apparatus for compressing and decompressing a higher order ambisonics representation for a sound field
CA3168326A Pending CA3168326A1 (en) 2012-12-12 2013-12-04 Method and apparatus for compressing and decompressing a higher order ambisonics representation for a sound field
CA3168322A Active CA3168322C (en) 2012-12-12 2013-12-04 Method and apparatus for compressing and decompressing a higher order ambisonics representation for a sound field
CA3125248A Active CA3125248C (en) 2012-12-12 2013-12-04 Method and apparatus for compressing and decompressing a higher order ambisonics representation for a sound field
CA3125246A Active CA3125246C (en) 2012-12-12 2013-12-04 Method and apparatus for compressing and decompressing a higher order ambisonics representation for a sound field

Country Status (11)

Country Link
US (8) US9646618B2 (https=)
EP (5) EP2743922A1 (https=)
JP (7) JP6285458B2 (https=)
KR (5) KR102546541B1 (https=)
CN (9) CN117037813A (https=)
CA (6) CA2891636C (https=)
MX (7) MX395017B (https=)
MY (2) MY169354A (https=)
RU (2) RU2744489C2 (https=)
TW (7) TWI788833B (https=)
WO (1) WO2014090660A1 (https=)

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Also Published As

Publication number Publication date
CN109410965A (zh) 2019-03-01
CN117392989A (zh) 2024-01-12
KR102664626B1 (ko) 2024-05-10
CA3125228A1 (en) 2014-06-19
EP2743922A1 (en) 2014-06-18
TWI681386B (zh) 2020-01-01
MY169354A (en) 2019-03-26
US20180310112A1 (en) 2018-10-25
KR102546541B1 (ko) 2023-06-23
CA3168326A1 (en) 2014-06-19
RU2017118830A3 (https=) 2020-09-07
TW202209302A (zh) 2022-03-01
MY191376A (en) 2022-06-21
KR20150095660A (ko) 2015-08-21
JP6869322B2 (ja) 2021-05-12
EP4553829A1 (en) 2025-05-14
JP2021107938A (ja) 2021-07-29
JP7661431B2 (ja) 2025-04-14
TW201926319A (zh) 2019-07-01
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