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TEMPLIN
reproducing scanning losses since the data were obtained by scanning the print with a microdensitometer.
CONCLUSION
It is felt that the compactness, sturdy construction, and portability features of this equipment amply meet the requirements of the industry for a sound-recording system for general location work. Its versatility and flexibility of operation are of particular value to the small studio which from the standpoint of economy and convenience finds it extremely advantageous to have one type of system meet its
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FREQUENCY IN CYCLES PER SECOND
Fig. 22 — Response characteristics from film print with constant light-valve
modulation.
needs for dialog and music recording on 16-mm or 35-mm film, in the studio or on location. As indicated from the performance characteristics described in this paper, the mechanical and electrical design of the equipment make possible a high-quality sound product, the specifications for frequency range, signal-to-noise ratio, harmonic distortion, and flutter content being consistent with current requirements of major Hollywood studios.
REFERENCES
(1) G. R. Crane and H, A. Manley, "A simplified all-purpose film recording machine," /. Soc. Mot. Pict. Eng., vol. 46, pp. 465-475; June, 1946.
(2) C. C. Davis, "An improved film-drive filter mechanism," /. Soc. Mot. Pict. Eng., vol. 46, pp. 454-465; June, 1946.
(3) D. P. Loye and K. F. Morgan, "Sound picture recording and reproducing characteristics," J. Soc. Mot. Pict. Eng., vol. 32, pp. 631-348; June, 1939.