KR102244379B1 - 오디오 신호들의 파라메트릭 재구성 - Google Patents

오디오 신호들의 파라메트릭 재구성 Download PDF

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KR102244379B1
KR102244379B1 KR1020167010113A KR20167010113A KR102244379B1 KR 102244379 B1 KR102244379 B1 KR 102244379B1 KR 1020167010113 A KR1020167010113 A KR 1020167010113A KR 20167010113 A KR20167010113 A KR 20167010113A KR 102244379 B1 KR102244379 B1 KR 102244379B1
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signal
matrix
channel
downmix
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KR20160099531A (ko
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라르스 빌레모에스
하이디-마리아 레토넨
하이코 푸른하겐
토니 히르보넨
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돌비 인터네셔널 에이비
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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
    • G10L19/005—Correction of errors induced by the transmission channel, if related to the coding algorithm
    • 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
    • G10L19/0212—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 using orthogonal transformation
    • 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
    • G10L19/167—Audio streaming, i.e. formatting and decoding of an encoded audio signal representation into a data stream for transmission or storage purposes
    • 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
    • G10L19/26—Pre-filtering or post-filtering
    • G10L19/265—Pre-filtering, e.g. high frequency emphasis prior to 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 
    • H04S5/005—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation  of the pseudo five- or more-channel type, e.g. virtual surround
    • 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

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Multimedia (AREA)
  • Mathematical Physics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Stereophonic System (AREA)
KR1020167010113A 2013-10-21 2014-10-21 오디오 신호들의 파라메트릭 재구성 Active KR102244379B1 (ko)

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KR1020217011678A KR102381216B1 (ko) 2013-10-21 2014-10-21 오디오 신호들의 파라메트릭 재구성

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US201361893770P 2013-10-21 2013-10-21
US61/893,770 2013-10-21
US201461974544P 2014-04-03 2014-04-03
US61/974,544 2014-04-03
US201462037693P 2014-08-15 2014-08-15
US62/037,693 2014-08-15
PCT/EP2014/072570 WO2015059153A1 (en) 2013-10-21 2014-10-21 Parametric reconstruction of audio signals

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KR1020217011678A Active KR102381216B1 (ko) 2013-10-21 2014-10-21 오디오 신호들의 파라메트릭 재구성
KR1020227010258A Active KR102486365B1 (ko) 2013-10-21 2014-10-21 오디오 신호들의 파라메트릭 재구성
KR1020247040654A Pending KR20250004121A (ko) 2013-10-21 2014-10-21 오디오 신호들의 파라메트릭 재구성
KR1020237000408A Active KR102741608B1 (ko) 2013-10-21 2014-10-21 오디오 신호들의 파라메트릭 재구성

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KR1020227010258A Active KR102486365B1 (ko) 2013-10-21 2014-10-21 오디오 신호들의 파라메트릭 재구성
KR1020247040654A Pending KR20250004121A (ko) 2013-10-21 2014-10-21 오디오 신호들의 파라메트릭 재구성
KR1020237000408A Active KR102741608B1 (ko) 2013-10-21 2014-10-21 오디오 신호들의 파라메트릭 재구성

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EP (1) EP3061089B1 (https=)
JP (1) JP6479786B2 (https=)
KR (5) KR102244379B1 (https=)
CN (3) CN111192592B (https=)
BR (1) BR112016008817B1 (https=)
ES (1) ES2660778T3 (https=)
RU (1) RU2648947C2 (https=)
WO (1) WO2015059153A1 (https=)

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ETSI TS 103 190-2 V1.1.1, Digital Audio Compression (AC-4) Standard Part 2: Immersive and personalized audio, 2015.09.
ISO/IEC WD0 23008-3. Information technology - High efficiency coding and media delivery in heterogeneous environments - Part 3: 3D audio. ISO/IEC JTC 1/SC 29/WG 11. 2013.10.23. (106 meeting w14060)

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