GB866201A - Improvements in or relating to stereophonic sound collecting devices - Google Patents

Improvements in or relating to stereophonic sound collecting devices

Info

Publication number
GB866201A
GB866201A GB27120/57A GB2712057A GB866201A GB 866201 A GB866201 A GB 866201A GB 27120/57 A GB27120/57 A GB 27120/57A GB 2712057 A GB2712057 A GB 2712057A GB 866201 A GB866201 A GB 866201A
Authority
GB
United Kingdom
Prior art keywords
plate
microphones
relating
stereophonic sound
sound collecting
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
GB27120/57A
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.)
Philips Electrical Industries Ltd
Original Assignee
Philips Electrical Industries Ltd
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 Philips Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB866201A publication Critical patent/GB866201A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H04R5/027—Spatial or constructional arrangements of microphones, e.g. in dummy heads

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Stereophonic Arrangements (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)

Abstract

866,201. Microphone arrays for stereophonic recordings. PHILIPS ELECTRICAL INDUSTRIES Ltd. Aug. 28, 1957 [Aug. 31, 1956], No. 27120/57. Class 40 (4). Microphones used for stereophonic sound collection are separated by a plate the area of which is variable. In Fig. 1 the plate 1 has a rotatable end portion so that either the small or large radius portions 4 or 3 may be placed between the microphones 5 in the direction from which sound originates. The profiles of the rotatable plate may be elliptical or spiral (see Figs. 2 and 3, not shown). One microphone with a cardioid characteristic may be used on each side of the plate or there may be a vertical column of microphones on each side of the plate.
GB27120/57A 1956-08-31 1957-08-28 Improvements in or relating to stereophonic sound collecting devices Expired GB866201A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEN12667A DE1067865B (en) 1956-08-31 1956-08-31 Stereophonic sound recording device

Publications (1)

Publication Number Publication Date
GB866201A true GB866201A (en) 1961-04-26

Family

ID=7339616

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27120/57A Expired GB866201A (en) 1956-08-31 1957-08-28 Improvements in or relating to stereophonic sound collecting devices

Country Status (5)

Country Link
US (1) US3070658A (en)
DE (1) DE1067865B (en)
FR (1) FR1181800A (en)
GB (1) GB866201A (en)
NL (2) NL220145A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2533790A1 (en) * 1982-09-27 1984-03-30 Sony Corp MICROPHONE DEVICE

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1572093A (en) * 1976-03-16 1980-07-23 Wehner R Omniphonic transducer system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR747504A (en) * 1931-12-14 1933-06-16
GB394325A (en) * 1931-12-14 1933-06-14 Alan Dower Blumlein Improvements in and relating to sound-transmission, sound-recording and sound-reproducing systems
US2520798A (en) * 1940-11-27 1950-08-29 Hartford Nat Bank & Trust Co Device for the stereophonic transmission of sound
BE455912A (en) * 1943-05-17
US2791628A (en) * 1953-06-22 1957-05-07 William R Edmondson Sound device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2533790A1 (en) * 1982-09-27 1984-03-30 Sony Corp MICROPHONE DEVICE

Also Published As

Publication number Publication date
FR1181800A (en) 1959-06-18
NL220145A (en)
DE1067865B (en) 1959-10-29
US3070658A (en) 1962-12-25
NL106407C (en) 1963-10-02

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