RU2704266C2 - Параметрическое кодирование и декодирование многоканальных аудиосигналов - Google Patents

Параметрическое кодирование и декодирование многоканальных аудиосигналов Download PDF

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RU2704266C2
RU2704266C2 RU2017114642A RU2017114642A RU2704266C2 RU 2704266 C2 RU2704266 C2 RU 2704266C2 RU 2017114642 A RU2017114642 A RU 2017114642A RU 2017114642 A RU2017114642 A RU 2017114642A RU 2704266 C2 RU2704266 C2 RU 2704266C2
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signal
channel
mix
encoding
coefficients
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RU2017114642A
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RU2017114642A3 (cg-RX-API-DMAC7.html
RU2017114642A (ru
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Хейко ПУРНХАГЕН
Хайди-Мария ЛЕХТОНЕН
Януш КЛЕЙСА
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Долби Интернешнл Аб
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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)
RU2017114642A 2014-10-31 2015-10-29 Параметрическое кодирование и декодирование многоканальных аудиосигналов RU2704266C2 (ru)

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

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RU2019131327A Division RU2798759C2 (ru) 2014-10-31 2015-10-29 Параметрическое кодирование и декодирование многоканальных аудиосигналов

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RU2017114642A RU2017114642A (ru) 2018-10-31
RU2017114642A3 RU2017114642A3 (cg-RX-API-DMAC7.html) 2019-05-24
RU2704266C2 true RU2704266C2 (ru) 2019-10-25

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EP (2) EP3540732B1 (cg-RX-API-DMAC7.html)
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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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RU2826480C1 (ru) * 2019-10-30 2024-09-11 Долби Лабораторис Лайсэнзин Корпорейшн Кодирование и декодирование многоканального аудио с использованием метаданных направленности
US12315523B2 (en) 2019-10-30 2025-05-27 Dolby Laboratories Licensing Corporation Multichannel audio encode and decode using directional metadata

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JP2022547038A (ja) 2019-09-03 2022-11-10 ドルビー ラボラトリーズ ライセンシング コーポレイション 低レイテンシ・低音効果コーデック
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EP4576075A3 (en) * 2020-06-11 2025-07-02 Dolby Laboratories Licensing Corporation Methods and devices for encoding decoding spatial background noise within a multi-channel input signal
CN114023338B (zh) * 2020-07-17 2025-06-03 华为技术有限公司 多声道音频信号的编码方法和装置
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Publication number Priority date Publication date Assignee Title
RU2826480C1 (ru) * 2019-10-30 2024-09-11 Долби Лабораторис Лайсэнзин Корпорейшн Кодирование и декодирование многоканального аудио с использованием метаданных направленности
US12315523B2 (en) 2019-10-30 2025-05-27 Dolby Laboratories Licensing Corporation Multichannel audio encode and decode using directional metadata

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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
JP6640849B2 (ja) 2020-02-05
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
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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