GB1550628A - Sound reproduction systems - Google Patents

Sound reproduction systems

Info

Publication number
GB1550628A
GB1550628A GB1019176A GB1019176A GB1550628A GB 1550628 A GB1550628 A GB 1550628A GB 1019176 A GB1019176 A GB 1019176A GB 1019176 A GB1019176 A GB 1019176A GB 1550628 A GB1550628 A GB 1550628A
Authority
GB
United Kingdom
Prior art keywords
sound reproduction
reproduction systems
systems
sound
reproduction
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
GB1019176A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
National Research Development Corp UK
National Research Development Corp of India
Original Assignee
National Research Development Corp UK
National Research Development Corp of India
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, National Research Development Corp of India filed Critical National Research Development Corp UK
Priority to GB1019176A priority Critical patent/GB1550628A/en
Priority to US05/776,916 priority patent/US4095049A/en
Priority to FR7707488A priority patent/FR2345047A1/en
Priority to CH313977A priority patent/CH633400A5/en
Priority to DK109277A priority patent/DK109277A/en
Priority to DE19772711299 priority patent/DE2711299A1/en
Priority to JP2912677A priority patent/JPS52134701A/en
Priority to NL7702790A priority patent/NL7702790A/en
Priority to CA274,025A priority patent/CA1061721A/en
Publication of GB1550628A publication Critical patent/GB1550628A/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)
GB1019176A 1976-03-15 1976-03-15 Sound reproduction systems Expired GB1550628A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
GB1019176A GB1550628A (en) 1976-03-15 1976-03-15 Sound reproduction systems
US05/776,916 US4095049A (en) 1976-03-15 1977-03-11 Non-rotationally-symmetric surround-sound encoding system
FR7707488A FR2345047A1 (en) 1976-03-15 1977-03-14 SOUND REPRODUCTION SYSTEMS
CH313977A CH633400A5 (en) 1976-03-15 1977-03-14 INSTALLATION FOR THE REPRODUCTION OF AN ENVIRONMENTAL SOUND.
DK109277A DK109277A (en) 1976-03-15 1977-03-14 SOUND REPRODUCTION SYSTEM
DE19772711299 DE2711299A1 (en) 1976-03-15 1977-03-15 SOUND PLAYBACK SYSTEM
JP2912677A JPS52134701A (en) 1976-03-15 1977-03-15 Device for transmitting or recording directional sound
NL7702790A NL7702790A (en) 1976-03-15 1977-03-15 DEVICE FOR TRANSMITTING OR RECORDING SOUND.
CA274,025A CA1061721A (en) 1976-03-15 1977-03-15 Three channel sound encoding and decoding system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1019176A GB1550628A (en) 1976-03-15 1976-03-15 Sound reproduction systems

Publications (1)

Publication Number Publication Date
GB1550628A true GB1550628A (en) 1979-08-15

Family

ID=9963239

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1019176A Expired GB1550628A (en) 1976-03-15 1976-03-15 Sound reproduction systems

Country Status (1)

Country Link
GB (1) GB1550628A (en)

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years

Effective date: 19970310