KR102114648B1 - 오디오 프로세싱 시스템에서 신호 역상관 - Google Patents

오디오 프로세싱 시스템에서 신호 역상관 Download PDF

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KR102114648B1
KR102114648B1 KR1020157021921A KR20157021921A KR102114648B1 KR 102114648 B1 KR102114648 B1 KR 102114648B1 KR 1020157021921 A KR1020157021921 A KR 1020157021921A KR 20157021921 A KR20157021921 A KR 20157021921A KR 102114648 B1 KR102114648 B1 KR 102114648B1
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decorrelation
audio data
channel
audio
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KR20150106949A (ko
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비네이 멜코테
쿠안-치에 옌
그랜트 에이. 데이비드슨
매튜 펠러
마크 에스. 빈톤
비벡 쿠마
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돌비 레버러토리즈 라이쎈싱 코오포레이션
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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
    • G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
    • 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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
    • G10L25/06—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being correlation coefficients
    • 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)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Mathematical Physics (AREA)
  • Stereophonic System (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Telephonic Communication Services (AREA)
KR1020157021921A 2013-02-14 2014-01-22 오디오 프로세싱 시스템에서 신호 역상관 Active KR102114648B1 (ko)

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Application Number Priority Date Filing Date Title
US201361764837P 2013-02-14 2013-02-14
US61/764,837 2013-02-14
PCT/US2014/012453 WO2014126682A1 (en) 2013-02-14 2014-01-22 Signal decorrelation in an audio processing system

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KR20150106949A KR20150106949A (ko) 2015-09-22
KR102114648B1 true KR102114648B1 (ko) 2020-05-26

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US (1) US9830916B2 (https=)
EP (1) EP2956933B1 (https=)
JP (1) JP6038355B2 (https=)
KR (1) KR102114648B1 (https=)
CN (1) CN104995676B (https=)
BR (1) BR112015018981B1 (https=)
ES (1) ES2613478T3 (https=)
IN (1) IN2015MN01954A (https=)
RU (1) RU2614381C2 (https=)
TW (1) TWI618050B (https=)
WO (1) WO2014126682A1 (https=)

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Publication number Publication date
JP2016510433A (ja) 2016-04-07
TWI618050B (zh) 2018-03-11
RU2015133287A (ru) 2017-02-21
RU2614381C2 (ru) 2017-03-24
CN104995676B (zh) 2018-03-30
ES2613478T3 (es) 2017-05-24
BR112015018981B1 (pt) 2022-02-01
IN2015MN01954A (https=) 2015-08-28
EP2956933A1 (en) 2015-12-23
US20150380000A1 (en) 2015-12-31
JP6038355B2 (ja) 2016-12-07
HK1213686A1 (en) 2016-07-08
EP2956933B1 (en) 2016-11-16
CN104995676A (zh) 2015-10-21
KR20150106949A (ko) 2015-09-22
US9830916B2 (en) 2017-11-28
BR112015018981A2 (pt) 2017-07-18
WO2014126682A1 (en) 2014-08-21
TW201443877A (zh) 2014-11-16

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