ATE390823T1 - AUDIO CHANNEL TRANSLATION - Google Patents

AUDIO CHANNEL TRANSLATION

Info

Publication number
ATE390823T1
ATE390823T1 AT02720929T AT02720929T ATE390823T1 AT E390823 T1 ATE390823 T1 AT E390823T1 AT 02720929 T AT02720929 T AT 02720929T AT 02720929 T AT02720929 T AT 02720929T AT E390823 T1 ATE390823 T1 AT E390823T1
Authority
AT
Austria
Prior art keywords
audio
channels
input channels
output
representing
Prior art date
Application number
AT02720929T
Other languages
German (de)
Inventor
Mark Davis
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
Application granted granted Critical
Publication of ATE390823T1 publication Critical patent/ATE390823T1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/002—Non-adaptive circuits, e.g. manually adjustable or static, for enhancing the sound image or the spatial distribution
    • 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 
    • H04S5/005—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation  of the pseudo five- or more-channel type, e.g. virtual surround

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Stereophonic System (AREA)
  • Machine Translation (AREA)
  • Cosmetics (AREA)
  • Electrically Operated Instructional Devices (AREA)

Abstract

A process for translating M audio input channels representing a soundfield to N audio output channels representing the same soundfield, wherein each channel is a single audio stream representing audio arriving from a direction, M and N are positive whole integers, and M is at least 2, generates one or more sets of output channels, each set having one or more output channels. Each set is associated with two or more spatially adjacent input channels and each output channel in a set is generated by a process that includes determining a measure of the correlation of the two or more input channels and the level interrelationships of the two or more input channels.
AT02720929T 2001-02-07 2002-02-07 AUDIO CHANNEL TRANSLATION ATE390823T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US26728401P 2001-02-07 2001-02-07

Publications (1)

Publication Number Publication Date
ATE390823T1 true ATE390823T1 (en) 2008-04-15

Family

ID=23018136

Family Applications (1)

Application Number Title Priority Date Filing Date
AT02720929T ATE390823T1 (en) 2001-02-07 2002-02-07 AUDIO CHANNEL TRANSLATION

Country Status (11)

Country Link
EP (1) EP1410686B1 (en)
JP (1) JP2004526355A (en)
KR (1) KR100904985B1 (en)
CN (1) CN1275498C (en)
AT (1) ATE390823T1 (en)
AU (1) AU2002251896B2 (en)
CA (1) CA2437764C (en)
DE (1) DE60225806T2 (en)
HK (1) HK1066966A1 (en)
MX (1) MXPA03007064A (en)
WO (1) WO2002063925A2 (en)

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US8290782B2 (en) * 2008-07-24 2012-10-16 Dts, Inc. Compression of audio scale-factors by two-dimensional transformation
BRPI0913460B1 (en) * 2008-09-11 2024-03-05 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. APPARATUS AND METHOD FOR PROVIDING A SET OF SPATIAL INDICATORS ON THE BASIS OF A MICROPHONE SIGNAL AND APPARATUS FOR PROVIDING A TWO-CHANNEL AUDIO SIGNAL AND A SET OF SPATIAL INDICATORS
US8023660B2 (en) 2008-09-11 2011-09-20 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus, method and computer program for providing a set of spatial cues on the basis of a microphone signal and apparatus for providing a two-channel audio signal and a set of spatial cues
EP2398257B1 (en) 2008-12-18 2017-05-10 Dolby Laboratories Licensing Corporation Audio channel spatial translation
US9197978B2 (en) 2009-03-31 2015-11-24 Panasonic Intellectual Property Management Co., Ltd. Sound reproduction apparatus and sound reproduction method
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Also Published As

Publication number Publication date
HK1066966A1 (en) 2005-04-01
WO2002063925A3 (en) 2004-02-19
WO2002063925A8 (en) 2004-03-25
AU2002251896A2 (en) 2002-08-19
CA2437764A1 (en) 2002-08-15
AU2002251896B2 (en) 2007-03-22
DE60225806D1 (en) 2008-05-08
CN1524399A (en) 2004-08-25
CN1275498C (en) 2006-09-13
JP2004526355A (en) 2004-08-26
DE60225806T2 (en) 2009-04-30
EP1410686A2 (en) 2004-04-21
KR20030079980A (en) 2003-10-10
CA2437764C (en) 2012-04-10
KR100904985B1 (en) 2009-06-26
WO2002063925A2 (en) 2002-08-15
MXPA03007064A (en) 2004-05-24
EP1410686B1 (en) 2008-03-26

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