JP5122681B2 - パラメトリックステレオアップミクス装置、パラメトリックステレオデコーダ、パラメトリックステレオダウンミクス装置、及びパラメトリックステレオエンコーダ - Google Patents

パラメトリックステレオアップミクス装置、パラメトリックステレオデコーダ、パラメトリックステレオダウンミクス装置、及びパラメトリックステレオエンコーダ Download PDF

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JP5122681B2
JP5122681B2 JP2011510076A JP2011510076A JP5122681B2 JP 5122681 B2 JP5122681 B2 JP 5122681B2 JP 2011510076 A JP2011510076 A JP 2011510076A JP 2011510076 A JP2011510076 A JP 2011510076A JP 5122681 B2 JP5122681 B2 JP 5122681B2
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signal
parametric stereo
downmix
monaural
difference
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エリク ジー ピー シュエイエルス
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Koninklijke Philips NV
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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
    • G10L19/018—Audio watermarking, i.e. embedding inaudible data in the audio signal
    • 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 
    • 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 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/02—Systems employing more than two channels, e.g. quadraphonic of the matrix type, i.e. in which input signals are combined algebraically, e.g. after having been phase shifted with respect to each other
    • 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

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Mathematical Physics (AREA)
  • Multimedia (AREA)
  • Human Computer Interaction (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Computational Linguistics (AREA)
  • Mathematical Analysis (AREA)
  • Theoretical Computer Science (AREA)
  • Pure & Applied Mathematics (AREA)
  • Mathematical Optimization (AREA)
  • General Physics & Mathematics (AREA)
  • Algebra (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Stereophonic System (AREA)
JP2011510076A 2008-05-23 2009-05-14 パラメトリックステレオアップミクス装置、パラメトリックステレオデコーダ、パラメトリックステレオダウンミクス装置、及びパラメトリックステレオエンコーダ Active JP5122681B2 (ja)

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EP08156801.6 2008-05-23
EP08156801 2008-05-23
PCT/IB2009/052009 WO2009141775A1 (en) 2008-05-23 2009-05-14 A parametric stereo upmix apparatus, a parametric stereo decoder, a parametric stereo downmix apparatus, a parametric stereo encoder

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JP2011522472A5 JP2011522472A5 (enExample) 2012-10-18
JP5122681B2 true JP5122681B2 (ja) 2013-01-16

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US (6) US8811621B2 (enExample)
EP (1) EP2283483B1 (enExample)
JP (1) JP5122681B2 (enExample)
KR (1) KR101629862B1 (enExample)
CN (1) CN102037507B (enExample)
BR (3) BRPI0908630B1 (enExample)
MX (1) MX2010012580A (enExample)
RU (1) RU2497204C2 (enExample)
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WO (1) WO2009141775A1 (enExample)

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US8625668B2 (en) 2006-01-10 2014-01-07 Kabushiki Kaisha Toshiba Information processing apparatus and video decoding method of information processing apparatus
US11545165B2 (en) 2018-07-03 2023-01-03 Panasonic Intellectual Property Corporation Of America Encoding device and encoding method using a determined prediction parameter based on an energy difference between channels

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TWI692937B (zh) * 2017-01-04 2020-05-01 美商達特公司 具高階環繞處理之可調整多重頻段壓縮器架構
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US8625668B2 (en) 2006-01-10 2014-01-07 Kabushiki Kaisha Toshiba Information processing apparatus and video decoding method of information processing apparatus
US8472789B2 (en) 2010-10-05 2013-06-25 Panasonic Corporation Image editing apparatus, image editing method, and image editing program
US11545165B2 (en) 2018-07-03 2023-01-03 Panasonic Intellectual Property Corporation Of America Encoding device and encoding method using a determined prediction parameter based on an energy difference between channels

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BR122020009727B1 (pt) 2021-04-06
US11871205B2 (en) 2024-01-09
TWI484477B (zh) 2015-05-11
US10136237B2 (en) 2018-11-20
BRPI0908630A8 (pt) 2017-12-12
EP2283483A1 (en) 2011-02-16
JP2011522472A (ja) 2011-07-28
KR20110020846A (ko) 2011-03-03
BRPI0908630A2 (pt) 2017-10-03
BRPI0908630B1 (pt) 2020-09-15
US20170134875A1 (en) 2017-05-11
US9591425B2 (en) 2017-03-07
RU2497204C2 (ru) 2013-10-27
CN102037507A (zh) 2011-04-27
EP2283483B1 (en) 2013-03-13
US20210274302A1 (en) 2021-09-02
WO2009141775A1 (en) 2009-11-26
US20140321652A1 (en) 2014-10-30
RU2010152580A (ru) 2012-06-27
KR101629862B1 (ko) 2016-06-24
MX2010012580A (es) 2010-12-20
US8811621B2 (en) 2014-08-19
US12192734B2 (en) 2025-01-07
US20240121567A1 (en) 2024-04-11
US20190058960A1 (en) 2019-02-21
CN102037507B (zh) 2013-02-06
US11019445B2 (en) 2021-05-25
BR122020009732B1 (pt) 2021-01-19
US20110096932A1 (en) 2011-04-28
TW201011736A (en) 2010-03-16

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