CN104981867B - 用于控制上混音频信号的通道间相干性的方法 - Google Patents

用于控制上混音频信号的通道间相干性的方法 Download PDF

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CN104981867B
CN104981867B CN201480008592.XA CN201480008592A CN104981867B CN 104981867 B CN104981867 B CN 104981867B CN 201480008592 A CN201480008592 A CN 201480008592A CN 104981867 B CN104981867 B CN 104981867B
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audio data
decorrelation
audio
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CN104981867A (zh
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颜冠傑
V·麦尔考特
M·费勒斯
G·A·戴维森
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Dolby Laboratories Licensing Corp
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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
    • 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
    • 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
    • H04S2420/07—Synergistic effects of band splitting and sub-band processing
    • 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 
    • 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 

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computational Linguistics (AREA)
  • Mathematical Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Stereophonic System (AREA)
  • Telephonic Communication Services (AREA)
  • Circuit For Audible Band Transducer (AREA)
CN201480008592.XA 2013-02-14 2014-01-22 用于控制上混音频信号的通道间相干性的方法 Active CN104981867B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201361764857P 2013-02-14 2013-02-14
US61/764,857 2013-02-14
PCT/US2014/012599 WO2014126689A1 (en) 2013-02-14 2014-01-22 Methods for controlling the inter-channel coherence of upmixed audio signals

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CN104981867A CN104981867A (zh) 2015-10-14
CN104981867B true CN104981867B (zh) 2018-03-30

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EP (1) EP2956935B1 (enExample)
JP (1) JP6046274B2 (enExample)
KR (1) KR101729930B1 (enExample)
CN (1) CN104981867B (enExample)
BR (1) BR112015018522B1 (enExample)
IN (1) IN2015MN01952A (enExample)
RU (1) RU2630370C9 (enExample)
WO (1) WO2014126689A1 (enExample)

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US12125492B2 (en) 2015-09-25 2024-10-22 Voiceage Coproration Method and system for decoding left and right channels of a stereo sound signal
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CN110024421B (zh) * 2016-11-23 2020-12-25 瑞典爱立信有限公司 用于自适应控制去相关滤波器的方法和装置
CN108966110B (zh) * 2017-05-19 2020-02-14 华为技术有限公司 声音信号处理方法、装置及系统、终端及存储介质
TWI812658B (zh) * 2017-12-19 2023-08-21 瑞典商都比國際公司 用於統一語音及音訊之解碼及編碼去關聯濾波器之改良之方法、裝置及系統
GB2572650A (en) * 2018-04-06 2019-10-09 Nokia Technologies Oy Spatial audio parameters and associated spatial audio playback
CN110047503B (zh) * 2018-09-25 2021-04-16 上海无线通信研究中心 一种声波的多径效应抑制方法
CN111107024B (zh) * 2018-10-25 2022-01-28 航天科工惯性技术有限公司 时间与频率混合编码的防错解码方法
CN109557509B (zh) * 2018-11-23 2020-08-11 安徽四创电子股份有限公司 一种用于改善脉间干扰的双脉冲信号合成器
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GB2634513A (en) * 2023-10-09 2025-04-16 Sony Interactive Entertainment Europe Ltd A method for decorrelating a set of simulated audio signals in a virtual environment
WO2025160833A1 (zh) * 2024-01-31 2025-08-07 北京小米移动软件有限公司 编解码方法、装置以及存储介质

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Publication number Publication date
HK1213687A1 (en) 2016-07-08
WO2014126689A1 (en) 2014-08-21
KR20150106962A (ko) 2015-09-22
JP6046274B2 (ja) 2016-12-14
BR112015018522B1 (pt) 2021-12-14
BR112015018522A2 (pt) 2017-07-18
US9754596B2 (en) 2017-09-05
JP2016510434A (ja) 2016-04-07
US20160005406A1 (en) 2016-01-07
RU2630370C9 (ru) 2017-09-26
RU2630370C2 (ru) 2017-09-07
RU2015133289A (ru) 2017-02-15
CN104981867A (zh) 2015-10-14
KR101729930B1 (ko) 2017-04-25
EP2956935B1 (en) 2017-01-04
IN2015MN01952A (enExample) 2015-08-28
EP2956935A1 (en) 2015-12-23

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