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Journal of the Society of Motion Picture and Television Engineers ( Volume: 54, Issue: 3, March 1950)
[ACTIVE]

Increased Noise Reduction by Delay Networks

Metadata

Publisher
SMPTE
Doc Type
Journal Article
Article Type
research-article
Abstract
This paper describes a new method of obtaining increased signal-to-noise ratio in optical sound film recording. This is done by increasing the noise reduction and is made possible by the use of delay networks which delay the application of sound currents to the modulator until after the noise-reduction-bias current has been partially canceled. Noise-reduction settings as high as 30 db have been tried with good success and settings of 15 db have been used in regular production.
Publication Date
1950-03-01
DOI
10.5594/J06357
Link
https://doi.org/10.5594/J06357
Author(s)
J. R. Whitney, J. W. Thatcher
Source Data (JSON)

Full registry record with provenance metadata. Open directly: /api/doc/10.5594-J06357.json

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J. R. Whitney and J. W. Thatcher; Increased Noise Reduction by Delay Networks, Journal of the Society of Motion Picture and Television Engineers ( Volume: 54, Issue: 3, March 1950); SMPTE, 1950. Available at https://doi.org/10.5594/J06357
Snippet:
J. R. Whitney and J. W. Thatcher; Increased Noise Reduction by Delay Networks, Journal of the Society of Motion Picture and Television Engineers ( Volume: 54, Issue: 3, March 1950); SMPTE, 1950. Available at https://doi.org/10.5594/J06357

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J. R. Whitney and J. W. Thatcher; Increased Noise Reduction by Delay Networks, Journal of the Society of Motion Picture and Television Engineers ( Volume: 54, Issue: 3, March 1950); SMPTE, 1950. Available at https://doi.org/10.5594/J06357
Snippet:
<span class="citation">J. R. Whitney and J. W. Thatcher; <cite>Increased Noise Reduction by Delay Networks</cite>, Journal of the Society of Motion Picture and Television Engineers ( Volume: 54, Issue: 3, March 1950); SMPTE, 1950. Available at <a href="https://doi.org/10.5594/J06357" target="_blank" rel="noopener">https://doi.org/10.5594/J06357</a></span>

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Preview:
J. R. Whitney and J. W. Thatcher; Increased Noise Reduction by Delay Networks, Journal of the Society of Motion Picture and Television Engineers ( Volume: 54, Issue: 3, March 1950); SMPTE, 1950
doi: 10.5594/J06357
url: https://doi.org/10.5594/J06357
Snippet:
<li>
J. R. Whitney and J. W. Thatcher; <cite id="bib-10-5594-j06357">Increased Noise Reduction by Delay Networks</cite>, Journal of the Society of Motion Picture and Television Engineers ( Volume: 54, Issue: 3, March 1950); SMPTE, 1950
<span class="doi">10.5594/J06357</span>
</li>