CA1100881A - Sound system apparatus and format - Google Patents

Sound system apparatus and format

Info

Publication number
CA1100881A
CA1100881A CA313,336A CA313336A CA1100881A CA 1100881 A CA1100881 A CA 1100881A CA 313336 A CA313336 A CA 313336A CA 1100881 A CA1100881 A CA 1100881A
Authority
CA
Canada
Prior art keywords
sound
signals
surround
main
track
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
CA313,336A
Other languages
English (en)
French (fr)
Inventor
Ioan R. Allen
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.)
Dolby Laboratories Licensing Corp
Original Assignee
Dolby Laboratories 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 Laboratories Licensing Corp filed Critical Dolby Laboratories Licensing Corp
Application granted granted Critical
Publication of CA1100881A publication Critical patent/CA1100881A/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

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)
  • Circuit For Audible Band Transducer (AREA)
  • Stereo-Broadcasting Methods (AREA)
CA313,336A 1977-10-14 1978-10-13 Sound system apparatus and format Expired CA1100881A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US84204677A 1977-10-14 1977-10-14
US842,046 1977-10-14

Publications (1)

Publication Number Publication Date
CA1100881A true CA1100881A (en) 1981-05-12

Family

ID=25286397

Family Applications (1)

Application Number Title Priority Date Filing Date
CA313,336A Expired CA1100881A (en) 1977-10-14 1978-10-13 Sound system apparatus and format

Country Status (4)

Country Link
JP (1) JPS5462801A (ja)
CA (1) CA1100881A (ja)
FR (1) FR2406368A1 (ja)
GB (1) GB2006583B (ja)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4577305A (en) * 1983-03-14 1986-03-18 Dolby Laboratories Licensing Corporation Stereophonic motion picture photographic sound-tracks compatible with different sound projection formats and record and playback apparatus therefore
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
JPS63183495A (ja) * 1987-01-27 1988-07-28 ヤマハ株式会社 音場制御装置
DE68921899T2 (de) * 1988-01-06 1995-09-21 Lucasarts Entertainment Co Räumliches Schallwiedergabesystem.
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
US6624873B1 (en) 1998-05-05 2003-09-23 Dolby Laboratories Licensing Corporation Matrix-encoded surround-sound channels in a discrete digital sound format
WO2000004744A1 (en) * 1998-07-17 2000-01-27 Lucasfilm Ltd. Multi-channel audio surround system
US6985594B1 (en) 1999-06-15 2006-01-10 Hearing Enhancement Co., Llc. Voice-to-remaining audio (VRA) interactive hearing aid and auxiliary equipment
CN105210388A (zh) 2013-04-05 2015-12-30 汤姆逊许可公司 管理沉浸式音频的混响场的方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4937601A (ja) * 1972-08-07 1974-04-08
GB1522135A (en) * 1974-08-29 1978-08-23 Dolby Laboratories Inc Stereophonic sound system
GB1510385A (en) * 1974-12-16 1978-05-10 Mosely J Surround sound system

Also Published As

Publication number Publication date
GB2006583B (en) 1982-04-28
FR2406368B1 (ja) 1983-08-12
GB2006583A (en) 1979-05-02
JPS5462801A (en) 1979-05-21
FR2406368A1 (fr) 1979-05-11
JPH0343839B2 (ja) 1991-07-03

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Legal Events

Date Code Title Description
MKEX Expiry