DK153269C - Anlaeg til gengivelse af lyd - Google Patents

Anlaeg til gengivelse af lyd

Info

Publication number
DK153269C
DK153269C DK411381A DK411381A DK153269C DK 153269 C DK153269 C DK 153269C DK 411381 A DK411381 A DK 411381A DK 411381 A DK411381 A DK 411381A DK 153269 C DK153269 C DK 153269C
Authority
DK
Denmark
Prior art keywords
plant
representing sound
sound
representing
Prior art date
Application number
DK411381A
Other languages
Danish (da)
English (en)
Other versions
DK411381A (da
DK153269B (da
Inventor
Michael Anthony Gerzon
Original Assignee
Nat Res Dev
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 Nat Res Dev filed Critical Nat Res Dev
Publication of DK411381A publication Critical patent/DK411381A/da
Publication of DK153269B publication Critical patent/DK153269B/da
Application granted granted Critical
Publication of DK153269C publication Critical patent/DK153269C/da

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 
    • H04S2420/00—Techniques used stereophonic systems covered by H04S but not provided for in its groups
    • H04S2420/11—Application of ambisonics in stereophonic audio systems

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)
  • Circuit For Audible Band Transducer (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Stereophonic System (AREA)
DK411381A 1980-02-23 1981-09-16 Anlaeg til gengivelse af lyd DK153269C (da)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB8006174 1980-02-23
GB8006174 1980-02-23
GB8100018 1981-02-12
PCT/GB1981/000018 WO1981002502A1 (en) 1980-02-23 1981-02-12 Sound reproduction systems

Publications (3)

Publication Number Publication Date
DK411381A DK411381A (da) 1981-09-16
DK153269B DK153269B (da) 1988-06-27
DK153269C true DK153269C (da) 1988-11-21

Family

ID=10511618

Family Applications (1)

Application Number Title Priority Date Filing Date
DK411381A DK153269C (da) 1980-02-23 1981-09-16 Anlaeg til gengivelse af lyd

Country Status (7)

Country Link
US (1) US4414430A (nl)
EP (1) EP0046765B1 (nl)
JP (1) JPH0712240B2 (nl)
DE (1) DE3161567D1 (nl)
DK (1) DK153269C (nl)
GB (1) GB2073556B (nl)
WO (1) WO1981002502A1 (nl)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4799260A (en) * 1985-03-07 1989-01-17 Dolby Laboratories Licensing Corporation Variable matrix decoder
US5274740A (en) * 1991-01-08 1993-12-28 Dolby Laboratories Licensing Corporation Decoder for variable number of channel presentation of multidimensional sound fields
GB9103207D0 (en) * 1991-02-15 1991-04-03 Gerzon Michael A Stereophonic sound reproduction system
US5594800A (en) * 1991-02-15 1997-01-14 Trifield Productions Limited Sound reproduction system having a matrix converter
US5757927A (en) * 1992-03-02 1998-05-26 Trifield Productions Ltd. Surround sound apparatus
CN1037891C (zh) * 1992-06-11 1998-03-25 赵维援 多声道音频功率放大集成电路
US5319713A (en) * 1992-11-12 1994-06-07 Rocktron Corporation Multi dimensional sound circuit
US5930370A (en) * 1995-09-07 1999-07-27 Rep Investment Limited Liability In-home theater surround sound speaker system
US5708719A (en) * 1995-09-07 1998-01-13 Rep Investment Limited Liability Company In-home theater surround sound speaker system
US6118876A (en) * 1995-09-07 2000-09-12 Rep Investment Limited Liability Company Surround sound speaker system for improved spatial effects
US6072878A (en) * 1997-09-24 2000-06-06 Sonic Solutions Multi-channel surround sound mastering and reproduction techniques that preserve spatial harmonics
AU2004320207A1 (en) * 2004-05-25 2005-12-08 Huonlabs Pty Ltd Audio apparatus and method
JP4886242B2 (ja) * 2005-08-18 2012-02-29 日本放送協会 ダウンミックス装置およびダウンミックスプログラム
US20120155650A1 (en) * 2010-12-15 2012-06-21 Harman International Industries, Incorporated Speaker array for virtual surround rendering
EP2541547A1 (en) 2011-06-30 2013-01-02 Thomson Licensing Method and apparatus for changing the relative positions of sound objects contained within a higher-order ambisonics representation
US9338552B2 (en) 2014-05-09 2016-05-10 Trifield Ip, Llc Coinciding low and high frequency localization panning

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1369813A (en) * 1971-02-02 1974-10-09 Nat Res Dev Reproduction of sound
GB1494751A (en) * 1974-03-26 1977-12-14 Nat Res Dev Sound reproduction systems
GB1550627A (en) * 1975-11-13 1979-08-15 Nat Res Dev Sound reproduction systems
US4095049A (en) * 1976-03-15 1978-06-13 National Research Development Corporation Non-rotationally-symmetric surround-sound encoding system
GB1548674A (en) * 1976-07-01 1979-07-18 Nat Res Dev Sound reproduction systems

Also Published As

Publication number Publication date
EP0046765B1 (en) 1983-12-07
DE3161567D1 (en) 1984-01-12
WO1981002502A1 (en) 1981-09-03
GB2073556A (en) 1981-10-14
JPH0712240B2 (ja) 1995-02-08
DK411381A (da) 1981-09-16
DK153269B (da) 1988-06-27
GB2073556B (en) 1984-02-22
JPS57500268A (nl) 1982-02-12
US4414430A (en) 1983-11-08
EP0046765A1 (en) 1982-03-10

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Legal Events

Date Code Title Description
PUP Patent expired