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Journal of the Society of Motion Picture Engineers ( Volume: 16, Issue: 2, February 1931)
[ACTIVE]

A New Sound Reproducing System for Theaters

Metadata

Publisher
SMPTE
Doc Type
Journal Article
Article Type
research-article
Abstract
This paper describes a system for high quality sound reproduction from film in synchronism with the showing of motion pictures in theaters having a seating capacity of 1200 or less. A sound reproducing attachment is mounted upon each standard picture projector and is belt-driven by a common motor unit. The sound reproducing attachment houses a photo-electric cell which converts a light beam intercepted by the film sound track into electrical energy. Suitable preliminary amplifiers mounted upon independent pedestals amplify the output voice frequency energy of the photo-electric cell to a level suitable for further amplification by the main amplifiers. A control cabinet provides for switching and attenuating the sound circuits before being led to the main amplifiers and thence to the loudspeakers.
Publication Date
1931-02-01
DOI
10.5594/J01520
Link
https://doi.org/10.5594/J01520
Author(s)
G. Puller
Source Data (JSON)

Full registry record with provenance metadata. Open directly: /api/doc/10.5594-J01520.json

Reference this Doc

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G. Puller; A New Sound Reproducing System for Theaters, Journal of the Society of Motion Picture Engineers ( Volume: 16, Issue: 2, February 1931); SMPTE, 1931. Available at https://doi.org/10.5594/J01520
Snippet:
G. Puller; A New Sound Reproducing System for Theaters, Journal of the Society of Motion Picture Engineers ( Volume: 16, Issue: 2, February 1931); SMPTE, 1931. Available at https://doi.org/10.5594/J01520

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G. Puller; A New Sound Reproducing System for Theaters, Journal of the Society of Motion Picture Engineers ( Volume: 16, Issue: 2, February 1931); SMPTE, 1931. Available at https://doi.org/10.5594/J01520
Snippet:
<span class="citation">G. Puller; <cite>A New Sound Reproducing System for Theaters</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 16, Issue: 2, February 1931); SMPTE, 1931. Available at <a href="https://doi.org/10.5594/J01520" target="_blank" rel="noopener">https://doi.org/10.5594/J01520</a></span>

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Preview:
G. Puller; A New Sound Reproducing System for Theaters, Journal of the Society of Motion Picture Engineers ( Volume: 16, Issue: 2, February 1931); SMPTE, 1931
doi: 10.5594/J01520
url: https://doi.org/10.5594/J01520
Snippet:
<li>
G. Puller; <cite id="bib-10-5594-j01520">A New Sound Reproducing System for Theaters</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 16, Issue: 2, February 1931); SMPTE, 1931
<span class="doi">10.5594/J01520</span>
</li>