WO2007111568A3 - Method and arrangement for a decoder for multi-channel surround sound - Google Patents

Method and arrangement for a decoder for multi-channel surround sound Download PDF

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Publication number
WO2007111568A3
WO2007111568A3 PCT/SE2007/050194 SE2007050194W WO2007111568A3 WO 2007111568 A3 WO2007111568 A3 WO 2007111568A3 SE 2007050194 W SE2007050194 W SE 2007050194W WO 2007111568 A3 WO2007111568 A3 WO 2007111568A3
Authority
WO
WIPO (PCT)
Prior art keywords
decoder
arrangement
surround sound
channel surround
covariance matrix
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/SE2007/050194
Other languages
French (fr)
Other versions
WO2007111568A2 (en
Inventor
Anisse Taleb
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson 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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Priority to US12/295,172 priority Critical patent/US8126152B2/en
Priority to EP07716149A priority patent/EP2000001B1/en
Priority to AT07716149T priority patent/ATE538604T1/en
Priority to CN200780011012.2A priority patent/CN101411214B/en
Priority to JP2009502725A priority patent/JP4875142B2/en
Publication of WO2007111568A2 publication Critical patent/WO2007111568A2/en
Publication of WO2007111568A3 publication Critical patent/WO2007111568A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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 
    • 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)
  • Acoustics & Sound (AREA)
  • Mathematical Physics (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Health & Medical Sciences (AREA)
  • Computational Linguistics (AREA)
  • Algebra (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Stereophonic System (AREA)

Abstract

The basic concept of the present invention is to extrapolate a partially known spatial covariance matrix of a multi-channel signal in the parameter domain. The extrapolated covariance matrix is used with the downcoded downmix signal in order to efficiently generate an estimate of a linear combination of the multi-channel signals.
PCT/SE2007/050194 2006-03-28 2007-03-28 Method and arrangement for a decoder for multi-channel surround sound Ceased WO2007111568A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US12/295,172 US8126152B2 (en) 2006-03-28 2007-03-28 Method and arrangement for a decoder for multi-channel surround sound
EP07716149A EP2000001B1 (en) 2006-03-28 2007-03-28 Method and arrangement for a decoder for multi-channel surround sound
AT07716149T ATE538604T1 (en) 2006-03-28 2007-03-28 METHOD AND ARRANGEMENT FOR A DECODER FOR MULTI-CHANNEL SURROUND SOUND
CN200780011012.2A CN101411214B (en) 2006-03-28 2007-03-28 Method and apparatus for a decoder for multi-channel surround sound
JP2009502725A JP4875142B2 (en) 2006-03-28 2007-03-28 Method and apparatus for a decoder for multi-channel surround sound

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US74387106P 2006-03-28 2006-03-28
US60/743,871 2006-03-28

Publications (2)

Publication Number Publication Date
WO2007111568A2 WO2007111568A2 (en) 2007-10-04
WO2007111568A3 true WO2007111568A3 (en) 2007-12-13

Family

ID=38541553

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2007/050194 Ceased WO2007111568A2 (en) 2006-03-28 2007-03-28 Method and arrangement for a decoder for multi-channel surround sound

Country Status (6)

Country Link
US (1) US8126152B2 (en)
EP (1) EP2000001B1 (en)
JP (1) JP4875142B2 (en)
CN (1) CN101411214B (en)
AT (1) ATE538604T1 (en)
WO (1) WO2007111568A2 (en)

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EP2830051A3 (en) 2013-07-22 2015-03-04 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio encoder, audio decoder, methods and computer program using jointly encoded residual signals
EP2830336A3 (en) * 2013-07-22 2015-03-04 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Renderer controlled spatial upmix
EP2830334A1 (en) 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Multi-channel audio decoder, multi-channel audio encoder, methods, computer program and encoded audio representation using a decorrelation of rendered audio signals
TWI847206B (en) 2013-09-12 2024-07-01 瑞典商杜比國際公司 Decoding method, and decoding device in multichannel audio system, computer program product comprising a non-transitory computer-readable medium with instructions for performing decoding method, audio system comprising decoding device
US9779739B2 (en) 2014-03-20 2017-10-03 Dts, Inc. Residual encoding in an object-based audio system
WO2016003206A1 (en) * 2014-07-01 2016-01-07 한국전자통신연구원 Multichannel audio signal processing method and device
CN110992964B (en) 2014-07-01 2023-10-13 韩国电子通信研究院 Method and device for processing multi-channel audio signals
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Also Published As

Publication number Publication date
US8126152B2 (en) 2012-02-28
EP2000001A2 (en) 2008-12-10
JP4875142B2 (en) 2012-02-15
US20090110203A1 (en) 2009-04-30
JP2009531735A (en) 2009-09-03
ATE538604T1 (en) 2012-01-15
CN101411214A (en) 2009-04-15
WO2007111568A2 (en) 2007-10-04
CN101411214B (en) 2011-08-10
EP2000001B1 (en) 2011-12-21

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