JP6038355B2 - オーディオ処理システムにおける信号脱相関 - Google Patents

オーディオ処理システムにおける信号脱相関 Download PDF

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JP6038355B2
JP6038355B2 JP2015556956A JP2015556956A JP6038355B2 JP 6038355 B2 JP6038355 B2 JP 6038355B2 JP 2015556956 A JP2015556956 A JP 2015556956A JP 2015556956 A JP2015556956 A JP 2015556956A JP 6038355 B2 JP6038355 B2 JP 6038355B2
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audio data
decorrelation
channel
information
audio
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JP2016510433A (ja
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メルコーテ，ヴィナイ
イェン，クー−チェ
エイ ダヴィッドソン，グラント
エイ ダヴィッドソン，グラント
フェラーズ，マシュー
エス ヴィントン，マーク
エス ヴィントン，マーク
クマール，ヴィヴェック
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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
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
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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)
JP2015556956A 2013-02-14 2014-01-22 オーディオ処理システムにおける信号脱相関 Active JP6038355B2 (ja)

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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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JP2016510433A JP2016510433A (ja) 2016-04-07
JP6038355B2 true JP6038355B2 (ja) 2016-12-07

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

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JP2016510433A (ja) 2016-04-07
TW201443877A (zh) 2014-11-16
HK1213686A1 (en) 2016-07-08
WO2014126682A1 (en) 2014-08-21
CN104995676B (zh) 2018-03-30
EP2956933B1 (en) 2016-11-16
IN2015MN01954A (enExample) 2015-08-28
EP2956933A1 (en) 2015-12-23
TWI618050B (zh) 2018-03-11
BR112015018981B1 (pt) 2022-02-01
RU2015133287A (ru) 2017-02-21
BR112015018981A2 (pt) 2017-07-18
ES2613478T3 (es) 2017-05-24
CN104995676A (zh) 2015-10-21
KR20150106949A (ko) 2015-09-22
RU2614381C2 (ru) 2017-03-24
US20150380000A1 (en) 2015-12-31
KR102114648B1 (ko) 2020-05-26
US9830916B2 (en) 2017-11-28

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