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GB2058524A - Dimensional sound producing apparatus and method - Google Patents

Dimensional sound producing apparatus and method

Info

Publication number
GB2058524A
GB2058524A GB8038858A GB8038858A GB2058524A GB 2058524 A GB2058524 A GB 2058524A GB 8038858 A GB8038858 A GB 8038858A GB 8038858 A GB8038858 A GB 8038858A GB 2058524 A GB2058524 A GB 2058524A
Authority
GB
United Kingdom
Prior art keywords
produce
speaker
compensating
sounds
stereo
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.)
Granted
Application number
GB8038858A
Other versions
GB2058524B (en
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.)
Individual
Original Assignee
Individual
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
Priority claimed from US06/027,473 external-priority patent/US4309570A/en
Priority claimed from US06/027,472 external-priority patent/US4218585A/en
Application filed by Individual filed Critical Individual
Publication of GB2058524A publication Critical patent/GB2058524A/en
Application granted granted Critical
Publication of GB2058524B publication Critical patent/GB2058524B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S1/00—Two-channel systems
    • H04S1/002—Non-adaptive circuits, e.g. manually adjustable or static, for enhancing the sound image or the spatial distribution

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Stereophonic System (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Surgical Instruments (AREA)

Abstract

Sound reproducing system having right and left speakers, (S(R) and S(L)), respectively, which produce right and left stereo sounds, respectively (Fig. 3). A right stereo signal in addition to driving the right speaker (S(R)), is inverted (B(RL)) and delayed (b1(RL) to b4(RL)) to produce a compensating signal which is transmitted to the left speaker (S(L)) to produce a delayed compensating sound pattern from the left speaker. The signal for the left speaker (S(L)) is inverted (B(LR)) and delayed (b1(LR) to b4(LR)) in a manner to produce a compensating sound pattern from the right speaker. The compensating sounds substantially cancel the main stereo sounds (R1 and Lr) travelling to a person's ear (Re and Le) that is further from that speaker, to produce a dimensionalized effect where some of the sounds appear to be outside of the speaker area. In a second embodiment, the main stereo signals and the compensating signals are used to produce a recording (Fig. 10) which in turn produces the main stereo sounds and the compensating sounds to produce a dimensionalized effect.
GB8038858A 1979-04-05 1980-04-04 Dimensional sound producing apparatus and method Expired GB2058524B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/027,473 US4309570A (en) 1979-04-05 1979-04-05 Dimensional sound recording and apparatus and method for producing the same
US06/027,472 US4218585A (en) 1979-04-05 1979-04-05 Dimensional sound producing apparatus and method

Publications (2)

Publication Number Publication Date
GB2058524A true GB2058524A (en) 1981-04-08
GB2058524B GB2058524B (en) 1984-02-15

Family

ID=26702522

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8038858A Expired GB2058524B (en) 1979-04-05 1980-04-04 Dimensional sound producing apparatus and method

Country Status (6)

Country Link
EP (1) EP0026224A4 (en)
JP (1) JPS56500477A (en)
CA (1) CA1147228A (en)
DE (1) DE3041429A1 (en)
GB (1) GB2058524B (en)
WO (1) WO1980002219A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997029615A1 (en) * 1996-02-12 1997-08-14 Efremov Vladimir A Three-dimensional sound reproduction system

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3168990D1 (en) * 1980-03-19 1985-03-28 Matsushita Electric Industrial Co Ltd Sound reproducing system having sonic image localization networks
US4567607A (en) * 1983-05-03 1986-01-28 Stereo Concepts, Inc. Stereo image recovery
JPS63224599A (en) * 1987-03-13 1988-09-19 Asa Plan:Kk Stereo processing unit
JP2924710B2 (en) * 1995-04-28 1999-07-26 ヤマハ株式会社 Stereo sound field expansion device
JP5206137B2 (en) * 2008-06-10 2013-06-12 ヤマハ株式会社 SOUND PROCESSING DEVICE, SPEAKER DEVICE, AND SOUND PROCESSING METHOD
US9949057B2 (en) * 2015-09-08 2018-04-17 Apple Inc. Stereo and filter control for multi-speaker device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3236949A (en) * 1962-11-19 1966-02-22 Bell Telephone Labor Inc Apparent sound source translator
JPS51132803A (en) * 1975-04-17 1976-11-18 Nippon Hoso Kyokai <Nhk> Sound field expander
JPS51163901U (en) * 1975-06-19 1976-12-27
GB1578854A (en) * 1976-02-27 1980-11-12 Victor Company Of Japan Stereophonic sound reproduction system
JPS52125301A (en) * 1976-04-13 1977-10-21 Victor Co Of Japan Ltd Signal processing circuit
DE2640254A1 (en) * 1976-09-03 1978-03-09 Manfred Schunke Stereophonic reproduction system - subjects channel signals to delay, phase shift and frequency change and cross-mixes signals with originals

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997029615A1 (en) * 1996-02-12 1997-08-14 Efremov Vladimir A Three-dimensional sound reproduction system

Also Published As

Publication number Publication date
JPS56500477A (en) 1981-04-09
WO1980002219A1 (en) 1980-10-16
GB2058524B (en) 1984-02-15
DE3041429C2 (en) 1992-03-12
EP0026224A1 (en) 1981-04-08
DE3041429A1 (en) 1982-02-11
CA1147228A (en) 1983-05-31
EP0026224A4 (en) 1981-08-27

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19970404