PL2175671T3 - Sposób, urządzenie, urządzenie kodujące, urządzenie dekodujące i system audio - Google Patents

Sposób, urządzenie, urządzenie kodujące, urządzenie dekodujące i system audio

Info

Publication number
PL2175671T3
PL2175671T3 PL10152627T PL10152627T PL2175671T3 PL 2175671 T3 PL2175671 T3 PL 2175671T3 PL 10152627 T PL10152627 T PL 10152627T PL 10152627 T PL10152627 T PL 10152627T PL 2175671 T3 PL2175671 T3 PL 2175671T3
Authority
PL
Poland
Prior art keywords
signal
stereo
modified
energy value
complex function
Prior art date
Application number
PL10152627T
Other languages
English (en)
Inventor
Loon Machiel W Van
Dirk J Breebart
Gerard H Hotho
Erik G P Schuiers
Heiko Purnhagen
Karl J Rödén
Original Assignee
Koninl Philips Electronics Nv
Dolby Int Ab
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.)
Filing date
Publication date
Application filed by Koninl Philips Electronics Nv, Dolby Int Ab filed Critical Koninl Philips Electronics Nv
Publication of PL2175671T3 publication Critical patent/PL2175671T3/pl

Links

Classifications

    • 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
    • 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 
    • H04S1/00—Two-channel systems
    • H04S1/007—Two-channel systems in which the audio signals are in digital form
    • 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)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Mathematical Physics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Algebra (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Computational Linguistics (AREA)
  • Stereophonic System (AREA)
  • Selective Calling Equipment (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
PL10152627T 2004-07-14 2005-07-07 Sposób, urządzenie, urządzenie kodujące, urządzenie dekodujące i system audio PL2175671T3 (pl)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP04103365 2004-07-14
EP05761091A EP1769655B1 (en) 2004-07-14 2005-07-07 Method, device, encoder apparatus, decoder apparatus and audio system
EP10152627A EP2175671B1 (en) 2004-07-14 2005-07-07 Method, device, encoder apparatus, decoder apparatus and audio system

Publications (1)

Publication Number Publication Date
PL2175671T3 true PL2175671T3 (pl) 2012-10-31

Family

ID=35044993

Family Applications (2)

Application Number Title Priority Date Filing Date
PL10152627T PL2175671T3 (pl) 2004-07-14 2005-07-07 Sposób, urządzenie, urządzenie kodujące, urządzenie dekodujące i system audio
PL05761091T PL1769655T3 (pl) 2004-07-14 2005-07-07 Sposób, urządzenie, urządzenie kodujące, urządzenie dekodujące i system audio

Family Applications After (1)

Application Number Title Priority Date Filing Date
PL05761091T PL1769655T3 (pl) 2004-07-14 2005-07-07 Sposób, urządzenie, urządzenie kodujące, urządzenie dekodujące i system audio

Country Status (10)

Country Link
US (2) US8150042B2 (pl)
EP (2) EP2175671B1 (pl)
JP (2) JP4898673B2 (pl)
KR (1) KR101147187B1 (pl)
CN (2) CN1985544B (pl)
AT (2) ATE526797T1 (pl)
ES (2) ES2387256T3 (pl)
PL (2) PL2175671T3 (pl)
TW (1) TWI462603B (pl)
WO (1) WO2006008683A1 (pl)

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WO2008044901A1 (en) 2006-10-12 2008-04-17 Lg Electronics Inc., Apparatus for processing a mix signal and method thereof
KR100891665B1 (ko) 2006-10-13 2009-04-02 엘지전자 주식회사 믹스 신호의 처리 방법 및 장치
CN101536086B (zh) 2006-11-15 2012-08-08 Lg电子株式会社 用于解码音频信号的方法和装置
KR101434198B1 (ko) * 2006-11-17 2014-08-26 삼성전자주식회사 신호 복호화 방법
US8265941B2 (en) 2006-12-07 2012-09-11 Lg Electronics Inc. Method and an apparatus for decoding an audio signal
KR101128815B1 (ko) 2006-12-07 2012-03-27 엘지전자 주식회사 오디오 처리 방법 및 장치
WO2008082276A1 (en) * 2007-01-05 2008-07-10 Lg Electronics Inc. A method and an apparatus for processing an audio signal
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DE102010015630B3 (de) * 2010-04-20 2011-06-01 Institut für Rundfunktechnik GmbH Verfahren zum Erzeugen eines abwärtskompatiblen Tonformates
US9378754B1 (en) 2010-04-28 2016-06-28 Knowles Electronics, Llc Adaptive spatial classifier for multi-microphone systems
CN103026406B (zh) * 2010-09-28 2014-10-08 华为技术有限公司 用于对已解码多通道音频信号或已解码立体声信号进行后处理的装置和方法
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Also Published As

Publication number Publication date
TW200628002A (en) 2006-08-01
EP1769655B1 (en) 2011-09-28
WO2006008683A1 (en) 2006-01-26
JP2011039535A (ja) 2011-02-24
CN1985544B (zh) 2010-10-13
US20070230710A1 (en) 2007-10-04
ATE557552T1 (de) 2012-05-15
JP4898673B2 (ja) 2012-03-21
TWI462603B (zh) 2014-11-21
ATE526797T1 (de) 2011-10-15
CN1985544A (zh) 2007-06-20
JP2008537596A (ja) 2008-09-18
JP5485844B2 (ja) 2014-05-07
HK1143481A1 (en) 2010-12-31
US20110058679A1 (en) 2011-03-10
ES2373728T3 (es) 2012-02-08
EP2175671A3 (en) 2011-01-12
ES2387256T3 (es) 2012-09-19
US8144879B2 (en) 2012-03-27
KR101147187B1 (ko) 2012-07-09
EP2175671B1 (en) 2012-05-09
PL1769655T3 (pl) 2012-05-31
EP1769655A1 (en) 2007-04-04
CN102122508B (zh) 2013-03-13
CN102122508A (zh) 2011-07-13
KR20070039543A (ko) 2007-04-12
EP2175671A2 (en) 2010-04-14
US8150042B2 (en) 2012-04-03

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