Equipment for Recording and Reproducing Sound with Photo-Film

A. F. Chorine

The work of the Central Laboratory of the All-Union Electrical Trust, Leningrad, U. S. S. R., under the direction of the author, in connection with the study, design, and manufacture of motion picture recording and reproducing apparatus is described. The present installment of the article deals with the research on light modulators, varible width and variable density; ordinary and noiseless recording systems; various forms of recording light sources; and the relative characteristics of the different kinds of modulators, viz., Western Electric, RCA, the author's, Kerr's cell, and flashing lamp.

Print ISSN
Published
1934-04
Content type
Original Research
DOI
10.5594/J07452