CA1310919C - Surround-sound system - Google Patents

Surround-sound system

Info

Publication number
CA1310919C
CA1310919C CA000587537A CA587537A CA1310919C CA 1310919 C CA1310919 C CA 1310919C CA 000587537 A CA000587537 A CA 000587537A CA 587537 A CA587537 A CA 587537A CA 1310919 C CA1310919 C CA 1310919C
Authority
CA
Canada
Prior art keywords
sound
surround
room
response
channel
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 - Lifetime
Application number
CA000587537A
Other languages
English (en)
French (fr)
Inventor
Tomlinson Holman
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.)
LucasArts Entertainment Co
Original Assignee
LucasArts Entertainment Co
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 LucasArts Entertainment Co filed Critical LucasArts Entertainment Co
Application granted granted Critical
Publication of CA1310919C publication Critical patent/CA1310919C/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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 
    • 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 
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
    • H04S7/30—Control circuits for electronic adaptation of the sound field
    • H04S7/307—Frequency adjustment, e.g. tone control

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)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
CA000587537A 1988-01-06 1989-01-05 Surround-sound system Expired - Lifetime CA1310919C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US14157088A 1988-01-06 1988-01-06
US141,570 1988-01-06

Publications (1)

Publication Number Publication Date
CA1310919C true CA1310919C (en) 1992-12-01

Family

ID=22496259

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000587537A Expired - Lifetime CA1310919C (en) 1988-01-06 1989-01-05 Surround-sound system

Country Status (7)

Country Link
EP (1) EP0323830B1 (ja)
JP (1) JP2727339B2 (ja)
KR (1) KR890012501A (ja)
AT (1) ATE120605T1 (ja)
AU (1) AU624347B2 (ja)
CA (1) CA1310919C (ja)
DE (1) DE68921899T2 (ja)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5043970A (en) * 1988-01-06 1991-08-27 Lucasarts Entertainment Company Sound system with source material and surround timbre response correction, specified front and surround loudspeaker directionality, and multi-loudspeaker surround

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5517393B2 (ja) * 1972-07-26 1980-05-10
JPS5333601A (en) * 1976-09-10 1978-03-29 Pioneer Electronic Corp Stereophonic system
GB2006583B (en) * 1977-10-14 1982-04-28 Dolby Lab Licensing Corp Multi-channel sound systems
JPS5773600A (en) * 1980-10-24 1982-05-08 Pioneer Electronic Corp Stereophonic reproducing device
JPH0720309B2 (ja) * 1984-12-06 1995-03-06 松下電器産業株式会社 スピ−カ用音質調整装置
US4799260A (en) * 1985-03-07 1989-01-17 Dolby Laboratories Licensing Corporation Variable matrix decoder
JPS62122500A (ja) * 1985-11-22 1987-06-03 Sony Corp マルチチヤンネルステレオ再生装置
DK152478C (da) * 1985-12-06 1988-07-25 Ole Sparkjaer Fremgangsmaade og kredsloeb til dekodning af fire kanalsignaler, som er matrixkodet og foreligger i form af et to-kanal signal

Also Published As

Publication number Publication date
KR890012501A (ko) 1989-08-26
EP0323830A2 (en) 1989-07-12
JPH02141100A (ja) 1990-05-30
AU2776989A (en) 1989-07-06
JP2727339B2 (ja) 1998-03-11
EP0323830B1 (en) 1995-03-29
EP0323830A3 (en) 1991-07-24
DE68921899T2 (de) 1995-09-21
ATE120605T1 (de) 1995-04-15
DE68921899D1 (de) 1995-05-04
AU624347B2 (en) 1992-06-11

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Legal Events

Date Code Title Description
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