Sound motion pictures : from the laboratory to their presentation (1929)

Record Details:

Title:
Sound motion pictures : from the laboratory to their presentation
Date:
1929
Publisher:
Garden City : Doubleday, Doran & Company, Inc.
Volume:
Sound motion pictures : from the laboratory to their presentation
Leaf #:
000149
Language:
English
Subjects:
Motion Pictures, Motion pictures--Technology
Collection:
Books
Format:
Books
Contributor:
Media History Digital Library
Sponsor:
Media History Digital Library
Coordinator:
Media History Digital Library
Description:
Date Added:
March 28, 2024
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OPERATING MANUAL 129 or film. Usually no fader changes other than those given on the printed "Cue sheet" are needed to secure artistically correct effects. The most frequent fault in the presentation of numbers is that the volume is too high. The realism and articulation of vocal numbers often suffer from excessive loudness. VI. WAXING FILMS All sound films are treated at the laboratories by putting a thin layer of paraffin on the edges of the films covering the margins of the sprocket holes. This is done to overcome the tendency of the fresh emulsion on new films to stick or jam in the head of the projector. It is practically impossible for new films to be released from the laboratories for service without this treatment. Since further waxing of new film in the field would result in too heavy a deposit, extreme caution should be exercised to prevent films from being treated by the projectionist if they have already been treated by the laboratories. Whenever new film is not treated and consequently has to be treated locally, only the edges containing the sprocket holes should be waxed. Any material placed on the picture portion will spoil the film. IX. Instructions for Operating Western Electric Sound Projector System i-d Equipment i. lighting up routine Turn on the filament switches A, H, and F. Turn on the 220 volts A. C. switch. Turn on the 521-A filament supply and adjust it to read 10 volts. Turn on the 8-B amplifier filament. Turn on the 520-A rectifier panel and adjust it to read 12 amps.