CA1063035A - Sound reproduction systems - Google Patents

Sound reproduction systems

Info

Publication number
CA1063035A
CA1063035A CA264,711A CA264711A CA1063035A CA 1063035 A CA1063035 A CA 1063035A CA 264711 A CA264711 A CA 264711A CA 1063035 A CA1063035 A CA 1063035A
Authority
CA
Canada
Prior art keywords
signal
velocity
components
degree
decoder according
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.)
Expired
Application number
CA264,711A
Other languages
English (en)
French (fr)
Inventor
Michael A. Gerzon
Original Assignee
National Research Development Corp UK
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 National Research Development Corp UK filed Critical National Research Development Corp UK
Application granted granted Critical
Publication of CA1063035A publication Critical patent/CA1063035A/en
Expired legal-status Critical Current

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)
  • Stereophonic System (AREA)
  • Stereo-Broadcasting Methods (AREA)
CA264,711A 1975-11-13 1976-11-02 Sound reproduction systems Expired CA1063035A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB46822/75A GB1550627A (en) 1975-11-13 1975-11-13 Sound reproduction systems

Publications (1)

Publication Number Publication Date
CA1063035A true CA1063035A (en) 1979-09-25

Family

ID=10442718

Family Applications (1)

Application Number Title Priority Date Filing Date
CA264,711A Expired CA1063035A (en) 1975-11-13 1976-11-02 Sound reproduction systems

Country Status (10)

Country Link
US (1) US4081606A (2)
JP (1) JPS5261403A (2)
CA (1) CA1063035A (2)
CH (1) CH622919A5 (2)
DE (1) DE2649525A1 (2)
DK (1) DK505876A (2)
FR (1) FR2331930A1 (2)
GB (1) GB1550627A (2)
IT (1) IT1064312B (2)
NL (1) NL7612634A (2)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2073556B (en) 1980-02-23 1984-02-22 Nat Res Dev Sound reproduction systems
JPS6374289U (2) * 1986-10-31 1988-05-18
US5757927A (en) * 1992-03-02 1998-05-26 Trifield Productions Ltd. Surround sound apparatus
US6021206A (en) * 1996-10-02 2000-02-01 Lake Dsp Pty Ltd Methods and apparatus for processing spatialised audio
US6665407B1 (en) * 1998-09-28 2003-12-16 Creative Technology Ltd. Three channel panning system
US7876903B2 (en) * 2006-07-07 2011-01-25 Harris Corporation Method and apparatus for creating a multi-dimensional communication space for use in a binaural audio system
US9332372B2 (en) 2010-06-07 2016-05-03 International Business Machines Corporation Virtual spatial sound scape
US9338552B2 (en) 2014-05-09 2016-05-10 Trifield Ip, Llc Coinciding low and high frequency localization panning

Family Cites Families (8)

* 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
US3821471A (en) * 1971-03-15 1974-06-28 Cbs Inc Apparatus for reproducing quadraphonic sound
US3856992A (en) * 1971-10-06 1974-12-24 D Cooper Multidirectional sound reproduction
JPS5313962B2 (2) * 1971-12-21 1978-05-13
JPS5210364B2 (2) * 1972-05-02 1977-03-23
US3883692A (en) * 1972-06-16 1975-05-13 Sony Corp Decoder apparatus with logic circuit for use with a four channel stereo
JPS5236681B2 (2) * 1972-11-30 1977-09-17
GB1494751A (en) * 1974-03-26 1977-12-14 Nat Res Dev Sound reproduction systems

Also Published As

Publication number Publication date
GB1550627A (en) 1979-08-15
DK505876A (da) 1977-05-14
CH622919A5 (2) 1981-04-30
US4081606A (en) 1978-03-28
IT1064312B (it) 1985-02-18
NL7612634A (nl) 1977-05-17
DE2649525A1 (de) 1977-05-26
FR2331930A1 (fr) 1977-06-10
DE2649525C2 (2) 1988-01-14
FR2331930B1 (2) 1982-12-03
JPS5261403A (en) 1977-05-20
JPS6131680B2 (2) 1986-07-22

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