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GB723118A - Improvements in electro-acoustic apparatus for stereophonic reproduction - Google Patents

Improvements in electro-acoustic apparatus for stereophonic reproduction

Info

Publication number
GB723118A
GB723118A GB28986/51A GB2898651A GB723118A GB 723118 A GB723118 A GB 723118A GB 28986/51 A GB28986/51 A GB 28986/51A GB 2898651 A GB2898651 A GB 2898651A GB 723118 A GB723118 A GB 723118A
Authority
GB
United Kingdom
Prior art keywords
electro
reproduction
loudspeakers
dec
acoustic apparatus
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
GB28986/51A
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 GB723118A publication Critical patent/GB723118A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H3/00—Instruments in which the tones are generated by electromechanical means
    • G10H3/12—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument
    • G10H3/14—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument using mechanically actuated vibrators with pick-up means
    • G10H3/20—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument using mechanically actuated vibrators with pick-up means using a tuning fork, rod or tube

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Stereophonic System (AREA)

Abstract

723,118. Stereophonic recording and reproduction. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Dec. 11, 1951 [Dec. 14, 1950], No. 28986/51. Class 40 (4). The sounds of one or more church bells are reproduced by loudspeakers L1, L2 facing in opposite directions. The loudspeakers are controlled by magnetic records obtained simultaneously by pick-up devices M1, M2 disposed on opposite sides of the axis of a swinging bell (or bells). Amplifiers V are connected between the loudspeaker and the reproducing device M. The two records are made on a single magnetic tape to facilitate synchronous reproduction.
GB28986/51A 1950-12-14 1951-12-11 Improvements in electro-acoustic apparatus for stereophonic reproduction Expired GB723118A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE723118X 1950-12-14

Publications (1)

Publication Number Publication Date
GB723118A true GB723118A (en) 1955-02-02

Family

ID=6632255

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28986/51A Expired GB723118A (en) 1950-12-14 1951-12-11 Improvements in electro-acoustic apparatus for stereophonic reproduction

Country Status (1)

Country Link
GB (1) GB723118A (en)

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