A. C. Helmer, “The Film Projector-Magnetic Reproducer Double Sound System at CBS Television Broadcast Center, New York,” J. Audio Eng. Soc., vol. 16, no. 2, pp. 157–162, Apr. 1968.
Helmer AC. The Film Projector-Magnetic Reproducer Double Sound System at CBS Television Broadcast Center, New York. J Audio Eng Soc. 1968;16(2):157-162. Available from: https://aes.org/publications/elibrary-page/?id=1659
@article{Helmer1968_1659,
author = {Helmer, Arthur C.},
title = {{The Film Projector-Magnetic Reproducer Double Sound System at CBS Television Broadcast Center, New York}},
journal = {Journal of the Audio Engineering Society},
volume = {16},
number = {2},
pages = {157--162},
year = {1968},
month = apr,
publisher = {Audio Engineering Society},
url = {https://aes.org/publications/elibrary-page/?id=1659}
}
TY - JOUR
TI - The Film Projector-Magnetic Reproducer Double Sound System at CBS Television Broadcast Center, New York
AU - Helmer, Arthur C.
T2 - Journal of the Audio Engineering Society
J2 - J. Audio Eng. Soc.
VL - 16
IS - 2
SP - 157
EP - 162
PY - 1968
DA - 1968/04/06
UR - https://aes.org/publications/elibrary-page/?id=1659
PB - Audio Engineering Society
LA - en
AB - 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.
ER -