KR101921403B1 - 고차 앰비소닉 신호 압축 - Google Patents

고차 앰비소닉 신호 압축 Download PDF

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Publication number
KR101921403B1
KR101921403B1 KR1020167032090A KR20167032090A KR101921403B1 KR 101921403 B1 KR101921403 B1 KR 101921403B1 KR 1020167032090 A KR1020167032090 A KR 1020167032090A KR 20167032090 A KR20167032090 A KR 20167032090A KR 101921403 B1 KR101921403 B1 KR 101921403B1
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audio
unit
sound field
foreground
vectors
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KR20170007749A (ko
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무영 김
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퀄컴 인코포레이티드
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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
    • G10L19/002—Dynamic bit allocation
    • 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
    • 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)
  • Multimedia (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Mathematical Physics (AREA)
  • Stereophonic System (AREA)
KR1020167032090A 2014-05-16 2015-05-15 고차 앰비소닉 신호 압축 Expired - Fee Related KR101921403B1 (ko)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US201461994800P 2014-05-16 2014-05-16
US61/994,800 2014-05-16
US201462004145P 2014-05-28 2014-05-28
US62/004,145 2014-05-28
US14/712,661 2015-05-14
US14/712,661 US9847087B2 (en) 2014-05-16 2015-05-14 Higher order ambisonics signal compression
PCT/US2015/031072 WO2015175933A1 (en) 2014-05-16 2015-05-15 Higher order ambisonics signal compression

Publications (2)

Publication Number Publication Date
KR20170007749A KR20170007749A (ko) 2017-01-20
KR101921403B1 true KR101921403B1 (ko) 2018-11-22

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US (2) US9847087B2 (enExample)
EP (1) EP3143613B1 (enExample)
JP (1) JP6356832B2 (enExample)
KR (1) KR101921403B1 (enExample)
CN (1) CN106463121B (enExample)
WO (1) WO2015175933A1 (enExample)

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EP3324406A1 (en) * 2016-11-17 2018-05-23 Fraunhofer Gesellschaft zur Förderung der Angewand Apparatus and method for decomposing an audio signal using a variable threshold
US10332530B2 (en) * 2017-01-27 2019-06-25 Google Llc Coding of a soundfield representation
US10893373B2 (en) 2017-05-09 2021-01-12 Dolby Laboratories Licensing Corporation Processing of a multi-channel spatial audio format input signal
US10885921B2 (en) * 2017-07-07 2021-01-05 Qualcomm Incorporated Multi-stream audio coding
US10075802B1 (en) * 2017-08-08 2018-09-11 Qualcomm Incorporated Bitrate allocation for higher order ambisonic audio data
US11270711B2 (en) * 2017-12-21 2022-03-08 Qualcomm Incorproated Higher order ambisonic audio data
US10264386B1 (en) * 2018-02-09 2019-04-16 Google Llc Directional emphasis in ambisonics
US11240623B2 (en) * 2018-08-08 2022-02-01 Qualcomm Incorporated Rendering audio data from independently controlled audio zones
US11432071B2 (en) 2018-08-08 2022-08-30 Qualcomm Incorporated User interface for controlling audio zones
JP7311602B2 (ja) 2018-12-07 2023-07-19 フラウンホッファー－ゲゼルシャフト ツァ フェルダールング デァ アンゲヴァンテン フォアシュンク エー．ファオ 低次、中次、高次成分生成器を用いたＤｉｒＡＣベースの空間音声符号化に関する符号化、復号化、シーン処理および他の手順を行う装置、方法およびコンピュータプログラム
EP3751567B1 (en) * 2019-06-10 2022-01-26 Axis AB A method, a computer program, an encoder and a monitoring device
US11538489B2 (en) * 2019-06-24 2022-12-27 Qualcomm Incorporated Correlating scene-based audio data for psychoacoustic audio coding
US12308034B2 (en) 2019-06-24 2025-05-20 Qualcomm Incorporated Performing psychoacoustic audio coding based on operating conditions
US11361776B2 (en) * 2019-06-24 2022-06-14 Qualcomm Incorporated Coding scaled spatial components
US12142285B2 (en) * 2019-06-24 2024-11-12 Qualcomm Incorporated Quantizing spatial components based on bit allocations determined for psychoacoustic audio coding
CN110544484B (zh) * 2019-09-23 2021-12-21 中科超影（北京）传媒科技有限公司 高阶Ambisonic音频编解码方法及装置
WO2021086965A1 (en) 2019-10-30 2021-05-06 Dolby Laboratories Licensing Corporation Bitrate distribution in immersive voice and audio services
GB2615236A (en) * 2020-09-25 2023-08-02 Apple Inc Higher order ambisonics encoding and decoding
CN115938388A (zh) * 2021-05-31 2023-04-07 华为技术有限公司 一种三维音频信号的处理方法和装置
CN114171047B (zh) * 2021-12-23 2024-08-23 思必驰科技股份有限公司 音频信号处理方法、电子设备和存储介质
GB2624890A (en) * 2022-11-29 2024-06-05 Nokia Technologies Oy Parametric spatial audio encoding

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Also Published As

Publication number Publication date
US20180082694A1 (en) 2018-03-22
CN106463121B (zh) 2019-07-05
US20150340044A1 (en) 2015-11-26
EP3143613B1 (en) 2019-08-07
WO2015175933A1 (en) 2015-11-19
JP6356832B2 (ja) 2018-07-11
KR20170007749A (ko) 2017-01-20
EP3143613A1 (en) 2017-03-22
US9847087B2 (en) 2017-12-19
JP2017519239A (ja) 2017-07-13
CN106463121A (zh) 2017-02-22
US10176814B2 (en) 2019-01-08

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