DK1527655T3 - Spatial translation of audio channel - Google Patents

Spatial translation of audio channel

Info

Publication number
DK1527655T3
DK1527655T3 DK03770229T DK03770229T DK1527655T3 DK 1527655 T3 DK1527655 T3 DK 1527655T3 DK 03770229 T DK03770229 T DK 03770229T DK 03770229 T DK03770229 T DK 03770229T DK 1527655 T3 DK1527655 T3 DK 1527655T3
Authority
DK
Denmark
Prior art keywords
input signals
correlation
signals
compact
audio channel
Prior art date
Application number
DK03770229T
Other languages
Danish (da)
Inventor
Mark Franklin 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
Priority claimed from PCT/US2003/024570 external-priority patent/WO2004019656A2/en
Application granted granted Critical
Publication of DK1527655T3 publication Critical patent/DK1527655T3/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
    • 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 
    • 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 
    • H04S5/02—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 four-channel type, e.g. in which rear channel signals are derived from two-channel stereo signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Analysis (AREA)
  • Algebra (AREA)
  • Stereophonic System (AREA)
  • Machine Translation (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)

Abstract

Using an M:N variable matrix, M audio input signals, each associated with a direction, are translated to N audio output signals, each associated with a direction, wherein N is larger than M, M is two or more and N is a positive integer equal to three or more. The variable matrix is controlled in response to measures of: (1) the relative levels of the input signals, and (2) the cross-correlation of the input signals so that a soundfield generated by the output signals has a compact sound image in the direction of the spatial center of gravity of the input signals when the input signals are highly correlated, the image spreading from compact to broad as the correlation decreases and progressively splitting into multiple compact sound images, each in a direction associated with an input signal, as the correlation continues to decrease to highly uncorrelated.
DK03770229T 2002-08-07 2003-08-06 Spatial translation of audio channel DK1527655T3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US40198302P 2002-08-07 2002-08-07
PCT/US2003/024570 WO2004019656A2 (en) 2001-02-07 2003-08-06 Audio channel spatial translation

Publications (1)

Publication Number Publication Date
DK1527655T3 true DK1527655T3 (en) 2007-01-29

Family

ID=33489220

Family Applications (1)

Application Number Title Priority Date Filing Date
DK03770229T DK1527655T3 (en) 2002-08-07 2003-08-06 Spatial translation of audio channel

Country Status (17)

Country Link
EP (1) EP1527655B1 (en)
JP (1) JP4434951B2 (en)
KR (1) KR100988293B1 (en)
CN (1) CN1672464B (en)
AT (1) ATE341923T1 (en)
AU (1) AU2003278704B2 (en)
BR (2) BRPI0305746B1 (en)
CA (1) CA2494454C (en)
DE (1) DE60308876T2 (en)
DK (1) DK1527655T3 (en)
ES (1) ES2271654T3 (en)
HK (1) HK1073963A1 (en)
IL (1) IL165941A (en)
MX (1) MXPA05001413A (en)
MY (1) MY139849A (en)
PL (1) PL373120A1 (en)
TW (1) TWI315828B (en)

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US7508947B2 (en) * 2004-08-03 2009-03-24 Dolby Laboratories Licensing Corporation Method for combining audio signals using auditory scene analysis
CA2581810C (en) 2004-10-26 2013-12-17 Dolby Laboratories Licensing Corporation Calculating and adjusting the perceived loudness and/or the perceived spectral balance of an audio signal
WO2006056910A1 (en) * 2004-11-23 2006-06-01 Koninklijke Philips Electronics N.V. A device and a method to process audio data, a computer program element and computer-readable medium
TWI397901B (en) * 2004-12-21 2013-06-01 Dolby Lab Licensing Corp Method for controlling a particular loudness characteristic of an audio signal, and apparatus and computer program associated therewith
WO2006126856A2 (en) 2005-05-26 2006-11-30 Lg Electronics Inc. Method of encoding and decoding an audio signal
US8494667B2 (en) 2005-06-30 2013-07-23 Lg Electronics Inc. Apparatus for encoding and decoding audio signal and method thereof
MX2008000122A (en) 2005-06-30 2008-03-18 Lg Electronics Inc Method and apparatus for encoding and decoding an audio signal.
EP1946294A2 (en) 2005-06-30 2008-07-23 LG Electronics Inc. Apparatus for encoding and decoding audio signal and method thereof
US8577483B2 (en) 2005-08-30 2013-11-05 Lg Electronics, Inc. Method for decoding an audio signal
JP5108768B2 (en) 2005-08-30 2012-12-26 エルジー エレクトロニクス インコーポレイティド Apparatus and method for encoding and decoding audio signals
US7788107B2 (en) 2005-08-30 2010-08-31 Lg Electronics Inc. Method for decoding an audio signal
KR100880642B1 (en) 2005-08-30 2009-01-30 엘지전자 주식회사 Method and apparatus for decoding an audio signal
US7672379B2 (en) 2005-10-05 2010-03-02 Lg Electronics Inc. Audio signal processing, encoding, and decoding
US7646319B2 (en) 2005-10-05 2010-01-12 Lg Electronics Inc. Method and apparatus for signal processing and encoding and decoding method, and apparatus therefor
WO2007040363A1 (en) 2005-10-05 2007-04-12 Lg Electronics Inc. Method and apparatus for signal processing and encoding and decoding method, and apparatus therefor
US7696907B2 (en) 2005-10-05 2010-04-13 Lg Electronics Inc. Method and apparatus for signal processing and encoding and decoding method, and apparatus therefor
US7751485B2 (en) 2005-10-05 2010-07-06 Lg Electronics Inc. Signal processing using pilot based coding
KR100857111B1 (en) 2005-10-05 2008-09-08 엘지전자 주식회사 Method and apparatus for signal processing and encoding and decoding method, and apparatus therefor
US8068569B2 (en) 2005-10-05 2011-11-29 Lg Electronics, Inc. Method and apparatus for signal processing and encoding and decoding
US7840401B2 (en) 2005-10-24 2010-11-23 Lg Electronics Inc. Removing time delays in signal paths
US7965848B2 (en) 2006-03-29 2011-06-21 Dolby International Ab Reduced number of channels decoding
WO2010004155A1 (en) * 2008-06-26 2010-01-14 France Telecom Spatial synthesis of multichannel audio signals
EP2398257B1 (en) * 2008-12-18 2017-05-10 Dolby Laboratories Licensing Corporation Audio channel spatial translation
JP5314129B2 (en) * 2009-03-31 2013-10-16 パナソニック株式会社 Sound reproducing apparatus and sound reproducing method
CN101527874B (en) * 2009-04-28 2011-03-23 张勤 Dynamic sound field system
TWI444989B (en) * 2010-01-22 2014-07-11 Dolby Lab Licensing Corp Using multichannel decorrelation for improved multichannel upmixing
WO2012042905A1 (en) * 2010-09-30 2012-04-05 パナソニック株式会社 Sound reproduction device and sound reproduction method
RU2595896C2 (en) * 2012-03-22 2016-08-27 Дирак Рисерч Аб Circuit of preliminary controller of correcting audio using alternating supporting set of loudspeakers
EP2830335A3 (en) 2013-07-22 2015-02-25 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus, method, and computer program for mapping first and second input channels to at least one output channel
EP2830052A1 (en) 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio decoder, audio encoder, method for providing at least four audio channel signals on the basis of an encoded representation, method for providing an encoded representation on the basis of at least four audio channel signals and computer program using a bandwidth extension
EP3319342B1 (en) * 2015-06-24 2020-04-01 Sony Corporation Device, method, and program for processing sound
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
US11019449B2 (en) * 2018-10-06 2021-05-25 Qualcomm Incorporated Six degrees of freedom and three degrees of freedom backward compatibility
TWI751457B (en) 2018-12-07 2022-01-01 弗勞恩霍夫爾協會 Apparatus, method and computer program for encoding, decoding, scene processing and other procedures related to dirac based spatial audio coding using direct component compensation
TWI740206B (en) * 2019-09-16 2021-09-21 宏碁股份有限公司 Correction system and correction method of signal measurement
CN114327040A (en) * 2021-11-25 2022-04-12 歌尔股份有限公司 Vibration signal generation method, device, electronic device and storage medium

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US6009179A (en) * 1997-01-24 1999-12-28 Sony Corporation Method and apparatus for electronically embedding directional cues in two channels of sound
US6072878A (en) * 1997-09-24 2000-06-06 Sonic Solutions Multi-channel surround sound mastering and reproduction techniques that preserve spatial harmonics
AUPP271598A0 (en) * 1998-03-31 1998-04-23 Lake Dsp Pty Limited Headtracked processing for headtracked playback of audio signals
EP1054575A3 (en) * 1999-05-17 2002-09-18 Bose Corporation Directional decoding

Also Published As

Publication number Publication date
BRPI0305746B1 (en) 2018-03-20
CN1672464B (en) 2010-07-28
AU2003278704B2 (en) 2009-04-23
JP2005535266A (en) 2005-11-17
PL373120A1 (en) 2005-08-08
KR100988293B1 (en) 2010-10-18
ES2271654T3 (en) 2007-04-16
ATE341923T1 (en) 2006-10-15
CN1672464A (en) 2005-09-21
BR0305746A (en) 2004-12-07
JP4434951B2 (en) 2010-03-17
AU2003278704A1 (en) 2004-03-11
TWI315828B (en) 2009-10-11
KR20050035878A (en) 2005-04-19
EP1527655A2 (en) 2005-05-04
DE60308876T2 (en) 2007-03-01
CA2494454C (en) 2013-10-01
IL165941A0 (en) 2006-01-15
CA2494454A1 (en) 2004-03-04
MY139849A (en) 2009-11-30
MXPA05001413A (en) 2005-06-06
EP1527655B1 (en) 2006-10-04
IL165941A (en) 2010-06-30
TW200404222A (en) 2004-03-16
DE60308876D1 (en) 2006-11-16
HK1073963A1 (en) 2005-10-21

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