CA1020095A - Sound systems for arrays of four or eight loudspeakers - Google Patents

Sound systems for arrays of four or eight loudspeakers

Info

Publication number: CA1020095A
Authority: CA; Canada
Prior art keywords: loudspeakers; arrays; sound systems; sound; systems
Prior art date: 1974-03-26
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

CA222,146A

Other languages

French (fr)

Inventor

Michael A. Gerzon

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

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.)

1974-03-26

Filing date

1975-03-14

Publication date

1977-11-01

1975-03-14 Application filed by National Research Development Corp UK filed Critical National Research Development Corp UK

1977-02-07 Priority to CA271,220A priority Critical patent/CA1017254A/en

1977-11-01 Application granted granted Critical

1977-11-01 Publication of CA1020095A publication Critical patent/CA1020095A/en

Status 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

CA222,146A 1974-03-26 1975-03-14 Sound systems for arrays of four or eight loudspeakers Expired CA1020095A (en)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
CA271,220A CA1017254A (en)	1974-03-26	1977-02-07	Sound reproduction systems

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB13292/74A GB1494751A (en)	1974-03-26	1974-03-26	Sound reproduction systems

Publications (1)

Publication Number	Publication Date
CA1020095A true CA1020095A (en)	1977-11-01

Family

ID=10020311

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA222,146A Expired CA1020095A (en)	1974-03-26	1975-03-14	Sound systems for arrays of four or eight loudspeakers

Country Status (10)

Country	Link
US (1)	US3997725A (en)
JP (2)	JPS5943880B2 (en)
CA (1)	CA1020095A (en)
CH (2)	CH617303A5 (en)
DE (1)	DE2512287A1 (en)
DK (1)	DK120075A (en)
FR (1)	FR2266411B1 (en)
GB (1)	GB1494751A (en)
IT (1)	IT1034536B (en)
NL (1)	NL181068C (en)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4085291A (en) *	1971-10-06	1978-04-18	Cooper Duane H	Synthetic supplementary channel matrix decoding systems
US4086433A (en) *	1974-03-26	1978-04-25	National Research Development Corporation	Sound reproduction system with non-square loudspeaker lay-out
GB1512514A (en) *	1974-07-12	1978-06-01	Nat Res Dev	Microphone assemblies
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
GB2073556B (en) *	1980-02-23	1984-02-22	Nat Res Dev	Sound reproduction systems
DE3734084A1 (en) *	1987-10-08	1989-04-27	Inst Rundfunktechnik Gmbh	Method of reproducing multichannel sound signals
JPH05191899A (en) *	1992-01-16	1993-07-30	Pioneer Electron Corp	Stereo sound device
US5757927A (en) *	1992-03-02	1998-05-26	Trifield Productions Ltd.	Surround sound apparatus
US5754663A (en) *	1995-03-30	1998-05-19	Bsg Laboratories	Four dimensional acoustical audio system for a homogeneous sound field
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
US5677957A (en) *	1995-11-13	1997-10-14	Hulsebus; Alan	Audio circuit producing enhanced ambience
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
US20060215859A1 (en) *	2005-03-28	2006-09-28	Morrow Charles G	Sonic method and apparatus
US9197978B2 (en) *	2009-03-31	2015-11-24	Panasonic Intellectual Property Management Co., Ltd.	Sound reproduction apparatus and sound reproduction method
US9020152B2 (en) *	2010-03-05	2015-04-28	Stmicroelectronics Asia Pacific Pte. Ltd.	Enabling 3D sound reproduction using a 2D speaker arrangement
US8593219B1 (en) *	2012-08-31	2013-11-26	Motorola Solutions, Inc.	Method and apparatus for amplifying a radio frequency signal
US9338552B2 (en)	2014-05-09	2016-05-10	Trifield Ip, Llc	Coinciding low and high frequency localization panning
US10251012B2 (en)	2016-06-07	2019-04-02	Philip Raymond Schaefer	System and method for realistic rotation of stereo or binaural audio
CN109618275B (en) *	2018-12-29	2020-11-17	武汉轻工大学	Multi-channel non-center point sound field reconstruction method, equipment, storage medium and device

Family Cites Families (10)

* 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
US3784746A (en) *	1971-07-06	1974-01-08	R Hess	Single actuator for effecting multiple controls
US3830978A (en) *	1971-07-08	1974-08-20	Matsushita Electric Ind Co Ltd	Circuit for mixing four audio input signals to produce four audio output signals
US3856992A (en) *	1971-10-06	1974-12-24	D Cooper	Multidirectional sound reproduction
US3906156A (en) *	1971-10-06	1975-09-16	Duane H Cooper	Signal matrixing for directional reproduction of sound
JPS5313962B2 (en) *	1971-12-21	1978-05-13
JPS5210364B2 (en) *	1972-05-02	1977-03-23
US3824342A (en) *	1972-05-09	1974-07-16	Rca Corp	Omnidirectional sound field reproducing system
US3883692A (en) *	1972-06-16	1975-05-13	Sony Corp	Decoder apparatus with logic circuit for use with a four channel stereo
JPS5236681B2 (en) *	1972-11-30	1977-09-17

1974
- 1974-03-26 GB GB13292/74A patent/GB1494751A/en not_active Expired
1975
- 1975-03-14 CA CA222,146A patent/CA1020095A/en not_active Expired
- 1975-03-20 DE DE19752512287 patent/DE2512287A1/en active Granted
- 1975-03-21 DK DK120075A patent/DK120075A/da not_active Application Discontinuation
- 1975-03-21 US US05/560,865 patent/US3997725A/en not_active Expired - Lifetime
- 1975-03-25 CH CH383175A patent/CH617303A5/fr not_active IP Right Cessation
- 1975-03-25 NL NLAANVRAGE7503576,A patent/NL181068C/en active Search and Examination
- 1975-03-26 FR FR7509457A patent/FR2266411B1/fr not_active Expired
- 1975-03-26 IT IT21652/75A patent/IT1034536B/en active
- 1975-03-26 JP JP50037386A patent/JPS5943880B2/en not_active Expired
1977
- 1977-05-11 CH CH589977A patent/CH625660A5/fr not_active IP Right Cessation
1984
- 1984-06-07 JP JP59117438A patent/JPS6022898A/en active Granted

Also Published As

Publication number	Publication date
NL181068C (en)	1987-06-01
DK120075A (en)	1975-09-27
CH625660A5 (en)	1981-09-30
IT1034536B (en)	1979-10-10
US3997725A (en)	1976-12-14
FR2266411A1 (en)	1975-10-24
DE2512287A1 (en)	1975-10-09
NL7503576A (en)	1975-09-30
DE2512287C2 (en)	1988-04-07
JPS50131501A (en)	1975-10-17
CH617303A5 (en)	1980-05-14
JPH0137080B2 (en)	1989-08-03
JPS5943880B2 (en)	1984-10-25
FR2266411B1 (en)	1983-07-08
GB1494751A (en)	1977-12-14
JPS6022898A (en)	1985-02-05

Publication	Publication Date	Title
CA1020095A (en)	1977-11-01	Sound systems for arrays of four or eight loudspeakers
CA982055A (en)	1976-01-20	Sound reproducing system
CA1027053A (en)	1978-02-28	Stereophonic sound system
AU500215B2 (en)	1979-05-17	Loudspeaker system
CA1021870A (en)	1977-11-29	Electro-acoustic transducer system
CA1024900A (en)	1978-01-24	System for electronic modification of sound
CA1017256A (en)	1977-09-13	Loudspeaker and stereophonic loudspeaker system
CA1030648A (en)	1978-05-02	Electrostatic type electroacoustic transducer
CA976090A (en)	1975-10-14	Sound reproducing system
CA1029611A (en)	1978-04-18	Diaphragm for loud speaker
CA984301A (en)	1976-02-24	Surround sound systems
CA985180A (en)	1976-03-09	Sound reproduction system
AU8595075A (en)	1977-04-28	Sound dosimetry
AU499523B2 (en)	1979-04-26	Electroacoustic transducer
GB1550627A (en)	1979-08-15	Sound reproduction systems
CA1002882A (en)	1977-01-04	Audio amplifier systems
CA1013683A (en)	1977-07-12	Transducer having three polepieces
CA1017254A (en)	1977-09-13	Sound reproduction systems
AU488251B2 (en)	1974-11-07	Surround sound systems
CA985640A (en)	1976-03-16	Surround sound systems
AU493388B2 (en)		Sound making system
CA902207A (en)	1972-06-06	Speaker system and electrostatic speaker
AU488865B2 (en)	1976-08-19	Loudspeaker system
AU481910B2 (en)	1974-11-07	Sound reproducing system
AU473443B2 (en)	1976-06-24	Sound reproducing system