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Journal of the Society of Motion Picture Engineers ( Volume: 36, Issue: 5, May 1941)
[ACTIVE]

Reduction of Development Sprocket-Hole Modulation

Metadata

Publisher
SMPTE
Doc Type
Journal Article
Article Type
research-article
Abstract
One of the contributing factors to sound-track degradation is sprocket-hole modulation. This is more commonly known as 96-cycle modulation, and results from non-uniform action of developer around the perforations during the time of processing. Its chief remedy is turbulation. The practical aspects of controlling the amount of sprocket-hole modulation is described herein. Curves showing the increase of this distortion due to diminished turbulation are included as well as those showing the intermodulation of recorded sound by sprocket-hole agitation. The turbulation method employed at the Film Laboratory of Twentieth Century-Fox Film Corporation at Hollywood is disclosed and the various sensitometric means of control relative to this problem are given.
Publication Date
1941-05-01
DOI
10.5594/J12900
Link
https://doi.org/10.5594/J12900
Author(s)
M. Leshing, T. Ingman, K. Pier
Source Data (JSON)

Full registry record with provenance metadata. Open directly: /api/doc/10.5594-J12900.json

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M. Leshing, T. Ingman, and K. Pier; Reduction of Development Sprocket-Hole Modulation, Journal of the Society of Motion Picture Engineers ( Volume: 36, Issue: 5, May 1941); SMPTE, 1941. Available at https://doi.org/10.5594/J12900
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M. Leshing, T. Ingman, and K. Pier; Reduction of Development Sprocket-Hole Modulation, Journal of the Society of Motion Picture Engineers ( Volume: 36, Issue: 5, May 1941); SMPTE, 1941. Available at https://doi.org/10.5594/J12900

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M. Leshing, T. Ingman, and K. Pier; Reduction of Development Sprocket-Hole Modulation, Journal of the Society of Motion Picture Engineers ( Volume: 36, Issue: 5, May 1941); SMPTE, 1941. Available at https://doi.org/10.5594/J12900
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<span class="citation">M. Leshing, T. Ingman, and K. Pier; <cite>Reduction of Development Sprocket-Hole Modulation</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 36, Issue: 5, May 1941); SMPTE, 1941. Available at <a href="https://doi.org/10.5594/J12900" target="_blank" rel="noopener">https://doi.org/10.5594/J12900</a></span>

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M. Leshing, T. Ingman, and K. Pier; Reduction of Development Sprocket-Hole Modulation, Journal of the Society of Motion Picture Engineers ( Volume: 36, Issue: 5, May 1941); SMPTE, 1941
doi: 10.5594/J12900
url: https://doi.org/10.5594/J12900
Snippet:
<li>
M. Leshing, T. Ingman, and K. Pier; <cite id="bib-10-5594-j12900">Reduction of Development Sprocket-Hole Modulation</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 36, Issue: 5, May 1941); SMPTE, 1941
<span class="doi">10.5594/J12900</span>
</li>