JP6640849B2 - マルチチャネル・オーディオ信号のパラメトリック・エンコードおよびデコード - Google Patents

マルチチャネル・オーディオ信号のパラメトリック・エンコードおよびデコード Download PDF

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JP6640849B2
JP6640849B2 JP2017522811A JP2017522811A JP6640849B2 JP 6640849 B2 JP6640849 B2 JP 6640849B2 JP 2017522811 A JP2017522811 A JP 2017522811A JP 2017522811 A JP2017522811 A JP 2017522811A JP 6640849 B2 JP6640849 B2 JP 6640849B2
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signal
channel
downmix
encoding
channels
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JP2017536756A (ja
JP2017536756A5 (cg-RX-API-DMAC7.html
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プルンハーゲン，ヘイコ
レヒトーネン，ヘイディ−マリア
クレイサ，ヤヌッシュ
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ドルビー・インターナショナル・アーベー
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    • 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
    • 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
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/22—Mode decision, i.e. based on audio signal content versus external parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • 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 
    • H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
    • 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 
    • 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)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Mathematical Physics (AREA)
  • Stereophonic System (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
JP2017522811A 2014-10-31 2015-10-29 マルチチャネル・オーディオ信号のパラメトリック・エンコードおよびデコード Active JP6640849B2 (ja)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US201462073642P 2014-10-31 2014-10-31
US62/073,642 2014-10-31
US201562128425P 2015-03-04 2015-03-04
US62/128,425 2015-03-04
PCT/EP2015/075115 WO2016066743A1 (en) 2014-10-31 2015-10-29 Parametric encoding and decoding of multichannel audio signals

Related Child Applications (1)

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JP2017536756A JP2017536756A (ja) 2017-12-07
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KR (1) KR102486338B1 (cg-RX-API-DMAC7.html)
CN (2) CN111816194B (cg-RX-API-DMAC7.html)
BR (1) BR112017008015B1 (cg-RX-API-DMAC7.html)
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KR20170078648A (ko) 2017-07-07
JP2017536756A (ja) 2017-12-07
CN111816194B (zh) 2024-08-09
CN107004421A (zh) 2017-08-01
EP3213323B1 (en) 2018-12-12
RU2017114642A3 (cg-RX-API-DMAC7.html) 2019-05-24
BR112017008015B1 (pt) 2023-11-14
EP3540732B1 (en) 2023-07-26
CN107004421B (zh) 2020-07-07
US20170339505A1 (en) 2017-11-23
KR102486338B1 (ko) 2023-01-10
RU2019131327A (ru) 2019-11-25
JP2020074007A (ja) 2020-05-14
JP7009437B2 (ja) 2022-01-25
EP3540732A1 (en) 2019-09-18
RU2704266C2 (ru) 2019-10-25
ES2709661T3 (es) 2019-04-17
WO2016066743A1 (en) 2016-05-06
US9955276B2 (en) 2018-04-24
CN111816194A (zh) 2020-10-23
BR112017008015A2 (pt) 2017-12-19
RU2017114642A (ru) 2018-10-31
EP3213323A1 (en) 2017-09-06

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