Motion Pictures with Sound on Standard 16 mm. Film

The development of sound on 16 mm. film presents technical problems that have resulted in the proposal of many unconventional arrangements of sound track and picture as possible solutions. Each has for its object a simplification of this development problem in one or more respects, and each makes some sacrifice of cost either in the film itself, the machinery for projection, or in the machinery and methods of preparing the prints. — The solution here described avoids these cost penalties by employing standard 16 mm. film with a sound track and picture arrangement entirely comparable with the conventional 35 mm. release prints except for photographic reduction of both picture and sound track in the proper proportion. These reduction prints are made directly from 35 mm. negatives that have not been modified in any particular. — Three groups of sound-on-film projectors for use with this film have been developed. These include a complete home model, combining radio, phonograph, sound-on-disk. sound-on-film, and silent projection; a schoolroom model arranged for sound and silent film only, and an industrial model intended only for sound-film projection, which is arranged in a portable carrying case. All these machines are self-threading.

Print ISSN

0097-5834

Published

1932-09

Content type

Original Research

DOI

10.5594/J14756