CN109448743B - 对声场的高阶立体混响表示进行压缩和解压缩的方法和设备 - Google Patents

对声场的高阶立体混响表示进行压缩和解压缩的方法和设备 Download PDF

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CN109448743B
CN109448743B CN201910024898.9A CN201910024898A CN109448743B CN 109448743 B CN109448743 B CN 109448743B CN 201910024898 A CN201910024898 A CN 201910024898A CN 109448743 B CN109448743 B CN 109448743B
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hoa
directional signal
residual
signal
dominant
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CN109448743A (zh
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亚历山大·克鲁格
斯文·科登
约翰内斯·伯姆
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Dolby International AB
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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)
CN201910024898.9A 2012-12-12 2013-12-04 对声场的高阶立体混响表示进行压缩和解压缩的方法和设备 Active CN109448743B (zh)

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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
EP12306569.0 2012-12-12
CN201380064856.9A CN104854655B (zh) 2012-12-12 2013-12-04 对声场的高阶立体混响表示进行压缩和解压缩的方法和设备

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CN202310889797.4A Pending CN117037812A (zh) 2012-12-12 2013-12-04 对声场的高阶立体混响表示进行压缩和解压缩的方法和设备
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CN202311300470.5A Pending CN117392989A (zh) 2012-12-12 2013-12-04 对声场的高阶立体混响表示进行压缩和解压缩的方法和设备
CN201910024894.0A Active CN109410965B (zh) 2012-12-12 2013-12-04 对声场的高阶立体混响表示进行压缩和解压缩的方法和设备
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CN202310889797.4A Pending CN117037812A (zh) 2012-12-12 2013-12-04 对声场的高阶立体混响表示进行压缩和解压缩的方法和设备
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CN202311300470.5A Pending CN117392989A (zh) 2012-12-12 2013-12-04 对声场的高阶立体混响表示进行压缩和解压缩的方法和设备
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EP (5) EP2743922A1 (https=)
JP (7) JP6285458B2 (https=)
KR (5) KR102546541B1 (https=)
CN (9) CN109448743B (https=)
CA (6) CA2891636C (https=)
MX (7) MX344988B (https=)
MY (2) MY169354A (https=)
RU (2) RU2744489C2 (https=)
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