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Journal Article

The Film Projector-Magnetic Reproducer Double Sound System at CBS Television Broadcast Center, New York

Authors: Helmer, Arthur C.

Journal of the Audio Engineering Society · Volume 16 · Issue 2 · pp. 157–162 · April 1968

Abstract

A double sound system enables magnetic sound to be reproduced on a playback device (dubber) which is synchronized to a film projector's picture output. Both drive motors are powered from a common source and synchronized through belt-driven selsyns. Eight projectors and four dubbers comprise the system, with expansion capabilities for three additional projectors and two dubbers. A switching system interconnects any four of the 32 possible synchronization combinations and simultaneously routes each dubber's sound output into the appropriate projector's sound circuits. The system has been found especially useful for newscasts and documentary programs.

Details

Publication
Journal of the Audio Engineering Society
Volume
16
Issue
2
Pages
157–162
Publication date
April 6, 1968
Affiliation
CBS Television Network, New York, NY (See document for exact affiliation information.)
Type
Journal Article