ES2641538T3 - Codificación de contenido de audio multicanal - Google Patents

Codificación de contenido de audio multicanal Download PDF

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Publication number
ES2641538T3
ES2641538T3 ES14759219.0T ES14759219T ES2641538T3 ES 2641538 T3 ES2641538 T3 ES 2641538T3 ES 14759219 T ES14759219 T ES 14759219T ES 2641538 T3 ES2641538 T3 ES 2641538T3
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ES
Spain
Prior art keywords
signal
signals
input audio
average
channels
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Active
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ES14759219.0T
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English (en)
Spanish (es)
Inventor
Heiko Purnhagen
Harald Mundt
Kristofer Kjoerling
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Dolby International AB
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Dolby International AB
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    • 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
    • G10L19/02—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 spectral analysis, e.g. transform vocoders or subband vocoders
    • 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
    • G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S5/00—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation 
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Computational Linguistics (AREA)
  • Human Computer Interaction (AREA)
  • Multimedia (AREA)
  • Mathematical Physics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Quality & Reliability (AREA)
  • Stereophonic System (AREA)
  • Circuit For Audible Band Transducer (AREA)
ES14759219.0T 2013-09-12 2014-09-08 Codificación de contenido de audio multicanal Active ES2641538T3 (es)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US201361877189P 2013-09-12 2013-09-12
US201361877189P 2013-09-12
US201361893770P 2013-10-21 2013-10-21
US201361893770P 2013-10-21
US201461973628P 2014-04-01 2014-04-01
US201461973628P 2014-04-01
PCT/EP2014/069044 WO2015036352A1 (en) 2013-09-12 2014-09-08 Coding of multichannel audio content

Publications (1)

Publication Number Publication Date
ES2641538T3 true ES2641538T3 (es) 2017-11-10

Family

ID=51492343

Family Applications (1)

Application Number Title Priority Date Filing Date
ES14759219.0T Active ES2641538T3 (es) 2013-09-12 2014-09-08 Codificación de contenido de audio multicanal

Country Status (6)

Country Link
US (6) US9646619B2 (https=)
EP (4) EP3293734B1 (https=)
JP (7) JP6392353B2 (https=)
CN (7) CN110634494B (https=)
ES (1) ES2641538T3 (https=)
WO (1) WO2015036352A1 (https=)

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KR20190134821A (ko) 2013-04-05 2019-12-04 돌비 인터네셔널 에이비 스테레오 오디오 인코더 및 디코더
KR20140128564A (ko) * 2013-04-27 2014-11-06 인텔렉추얼디스커버리 주식회사 음상 정위를 위한 오디오 시스템 및 방법
WO2015036352A1 (en) 2013-09-12 2015-03-19 Dolby International Ab Coding of multichannel audio content
TWI671734B (zh) 2013-09-12 2019-09-11 瑞典商杜比國際公司 在包含三個音訊聲道的多聲道音訊系統中之解碼方法、編碼方法、解碼裝置及編碼裝置、包含用於執行解碼方法及編碼方法的指令之非暫態電腦可讀取的媒體之電腦程式產品、包含解碼裝置及編碼裝置的音訊系統
JP2018102075A (ja) * 2016-12-21 2018-06-28 トヨタ自動車株式会社 コイルの被膜剥離装置

Also Published As

Publication number Publication date
US20160225375A1 (en) 2016-08-04
CN110634494B (zh) 2023-09-01
US20200265844A1 (en) 2020-08-20
JP2025163183A (ja) 2025-10-28
US10325607B2 (en) 2019-06-18
US11776552B2 (en) 2023-10-03
CN107134280A (zh) 2017-09-05
HK1218180A1 (zh) 2017-02-03
JP6978565B2 (ja) 2021-12-08
CN107134280B (zh) 2020-10-23
CN110473560A (zh) 2019-11-19
US9899029B2 (en) 2018-02-20
JP6392353B2 (ja) 2018-09-19
CN117037811A (zh) 2023-11-10
JP2022010239A (ja) 2022-01-14
EP3561809B1 (en) 2023-11-22
US20190267012A1 (en) 2019-08-29
JP2018146975A (ja) 2018-09-20
US20220375481A1 (en) 2022-11-24
EP3044784A1 (en) 2016-07-20
EP4297026A2 (en) 2023-12-27
JP6759277B2 (ja) 2020-09-23
CN110473560B (zh) 2023-01-06
JP6644732B2 (ja) 2020-02-12
EP4297026A3 (en) 2024-03-06
JP2017167566A (ja) 2017-09-21
US9646619B2 (en) 2017-05-09
JP2020204778A (ja) 2020-12-24
CN117037810A (zh) 2023-11-10
US20170221489A1 (en) 2017-08-03
EP3293734B1 (en) 2019-05-15
CN110648674B (zh) 2023-09-22
JP7196268B2 (ja) 2022-12-26
US11410665B2 (en) 2022-08-09
US10593340B2 (en) 2020-03-17
CN105556597B (zh) 2019-10-29
EP3561809A1 (en) 2019-10-30
CN105556597A (zh) 2016-05-04
JP2016534410A (ja) 2016-11-04
US20180108364A1 (en) 2018-04-19
CN110648674A (zh) 2020-01-03
JP2023029374A (ja) 2023-03-03
EP3044784B1 (en) 2017-08-30
WO2015036352A1 (en) 2015-03-19
JP7726612B2 (ja) 2025-08-20
CN110634494A (zh) 2019-12-31
EP3293734A1 (en) 2018-03-14

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