Describes how sound is converted into light rays to produce optical sound motion pictures, and how the projector is able to change the light rays back into sound waves. Also describes sound recording by variable density.
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Collection
In ACMI's collection
Credits
Collection metadata
ACMI Identifier
322762
Language
English
Subject categories
Advertising, Film, Journalism, Mass Media & TV → Motion picture industry - Study and teaching
Advertising, Film, Journalism, Mass Media & TV → Motion picture projection
Advertising, Film, Journalism, Mass Media & TV → Motion pictures - Study and teaching
Advertising, Film, Journalism, Mass Media & TV → Sound - Recording and reproducing
Education, Instruction, Teaching & Schools → Motion picture industry - Study and teaching
Education, Instruction, Teaching & Schools → Motion pictures - Study and teaching
Educational & Instructional → Instructional
Mathematics, Science & Technology → Sound-waves
Sound/audio
Sound
Colour
Black and White
Holdings
16mm film; Limited Access Print (Section 2)
16mm film; Access Print (Section 1)