HK1123663A1 - Low-complexity audio matrix decoder - Google Patents

Low-complexity audio matrix decoder

Info

Publication number
HK1123663A1
HK1123663A1 HK09101179.2A HK09101179A HK1123663A1 HK 1123663 A1 HK1123663 A1 HK 1123663A1 HK 09101179 A HK09101179 A HK 09101179A HK 1123663 A1 HK1123663 A1 HK 1123663A1
Authority
HK
Hong Kong
Prior art keywords
low
matrix decoder
audio matrix
complexity audio
complexity
Prior art date
Application number
HK09101179.2A
Inventor
Ching-Wei Chen
Christophe Chabanne
Original Assignee
Dolby Lab Licensing Corp
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 Dolby Lab Licensing Corp filed Critical Dolby Lab Licensing Corp
Publication of HK1123663A1 publication Critical patent/HK1123663A1/en

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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Algebra (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Stereophonic System (AREA)
HK09101179.2A 2005-12-02 2009-02-10 Low-complexity audio matrix decoder HK1123663A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US74156705P 2005-12-02 2005-12-02
PCT/US2006/044447 WO2007067320A2 (en) 2005-12-02 2006-11-16 Low-complexity audio matrix decoder

Publications (1)

Publication Number Publication Date
HK1123663A1 true HK1123663A1 (en) 2009-06-19

Family

ID=37735788

Family Applications (1)

Application Number Title Priority Date Filing Date
HK09101179.2A HK1123663A1 (en) 2005-12-02 2009-02-10 Low-complexity audio matrix decoder

Country Status (5)

Country Link
EP (1) EP1964443B1 (en)
CN (1) CN101336563B (en)
HK (1) HK1123663A1 (en)
TW (1) TWI420918B (en)
WO (1) WO2007067320A2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI424755B (en) * 2008-01-11 2014-01-21 Dolby Lab Licensing Corp Matrix decoder
CN102104451A (en) * 2009-12-17 2011-06-22 上海电机学院 Multi-user receiving and transmitting combined precoding method and device in multi-input multi-output system
CN102802112B (en) * 2011-05-24 2014-08-13 鸿富锦精密工业（深圳）有限公司 Electronic device with audio file format conversion function
BR112013032727A2 (en) 2011-06-24 2017-01-31 Koninklijke Philips Nv audio signal processor and audio signal processing method
CN106604199B (en) * 2016-12-23 2018-09-18 湖南国科微电子股份有限公司 A kind of matrix disposal method and device of digital audio and video signals
WO2019126351A1 (en) * 2017-12-20 2019-06-27 Dolby Laboratories Licensing Corporation Configurable modal amplifier system
US10904690B1 (en) * 2019-12-15 2021-01-26 Nuvoton Technology Corporation Energy and phase correlated audio channels mixer

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5240563B2 (en) * 1972-03-07 1977-10-13
US4799260A (en) * 1985-03-07 1989-01-17 Dolby Laboratories Licensing Corporation Variable matrix decoder
US5666424A (en) * 1990-06-08 1997-09-09 Harman International Industries, Inc. Six-axis surround sound processor with automatic balancing and calibration
FI102799B (en) * 1993-06-15 1999-02-15 Nokia Technology Gmbh Improved Dolby Prologic decoder
TW247390B (en) * 1994-04-29 1995-05-11 Audio Products Int Corp Apparatus and method for adjusting levels between channels of a sound system
US5912976A (en) * 1996-11-07 1999-06-15 Srs Labs, Inc. Multi-channel audio enhancement system for use in recording and playback and methods for providing same
CN1214690C (en) * 1997-09-05 2005-08-10 雷克西康公司 5-2-5 Matrix encoder and decoder system
US7254239B2 (en) * 2001-02-09 2007-08-07 Thx Ltd. Sound system and method of sound reproduction
TW569551B (en) * 2001-09-25 2004-01-01 Roger Wallace Dressler Method and apparatus for multichannel logic matrix decoding
JP2005515737A (en) * 2002-01-17 2005-05-26 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ Multi-channel echo canceller system using active audio matrix coefficients
US20050052457A1 (en) * 2003-02-27 2005-03-10 Neil Muncy Apparatus for generating and displaying images for determining the quality of audio reproduction
US7949141B2 (en) * 2003-11-12 2011-05-24 Dolby Laboratories Licensing Corporation Processing audio signals with head related transfer function filters and a reverberator
AU2005219956B2 (en) * 2004-03-01 2009-05-28 Dolby Laboratories Licensing Corporation Multichannel audio coding

Also Published As

Publication number Publication date
TWI420918B (en) 2013-12-21
CN101336563A (en) 2008-12-31
CN101336563B (en) 2012-02-15
WO2007067320A2 (en) 2007-06-14
EP1964443B1 (en) 2011-09-21
WO2007067320A3 (en) 2007-11-01
TW200746872A (en) 2007-12-16
EP1964443A2 (en) 2008-09-03

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