MX2010012580A - Aparato de mezcla ascendente estereo parametrico, decodificador estereo parametrico, aparato de mezcla descendente estereo parametrico, codificador estereo parametrico. - Google Patents

Aparato de mezcla ascendente estereo parametrico, decodificador estereo parametrico, aparato de mezcla descendente estereo parametrico, codificador estereo parametrico.

Info

Publication number
MX2010012580A
MX2010012580A MX2010012580A MX2010012580A MX2010012580A MX 2010012580 A MX2010012580 A MX 2010012580A MX 2010012580 A MX2010012580 A MX 2010012580A MX 2010012580 A MX2010012580 A MX 2010012580A MX 2010012580 A MX2010012580 A MX 2010012580A
Authority
MX
Mexico
Prior art keywords
signal
monaural
difference
parametric stereo
downmix
Prior art date
Application number
MX2010012580A
Other languages
English (en)
Spanish (es)
Inventor
Erik G P Schuijers
Original Assignee
Koninkl Philips Electronics Nv
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
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Application filed by Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Publication of MX2010012580A publication Critical patent/MX2010012580A/es

Links

Classifications

    • 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
    • G10L19/018—Audio watermarking, i.e. embedding inaudible data in the audio signal
    • 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

Landscapes

  • 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)
MX2010012580A 2008-05-23 2009-05-14 Aparato de mezcla ascendente estereo parametrico, decodificador estereo parametrico, aparato de mezcla descendente estereo parametrico, codificador estereo parametrico. MX2010012580A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
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

Publications (1)

Publication Number Publication Date
MX2010012580A true MX2010012580A (es) 2010-12-20

Family

ID=40943873

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2010012580A MX2010012580A (es) 2008-05-23 2009-05-14 Aparato de mezcla ascendente estereo parametrico, decodificador estereo parametrico, aparato de mezcla descendente estereo parametrico, codificador estereo parametrico.

Country Status (10)

Country Link
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)
TW (1) TWI484477B (enExample)
WO (1) WO2009141775A1 (enExample)

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Also Published As

Publication number Publication date
BR122020009727B1 (pt) 2021-04-06
US11871205B2 (en) 2024-01-09
TWI484477B (zh) 2015-05-11
US10136237B2 (en) 2018-11-20
JP5122681B2 (ja) 2013-01-16
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
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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