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Journal of the Society of Motion Picture Engineers ( Volume: 16, Issue: 1, January 1931)
[ACTIVE]

Microphone Concentrators in Picture Production

Metadata

Publisher
SMPTE
Doc Type
Journal Article
Article Type
research-article
Abstract
By means of microphone concentrators high quality sound pickup is rendered possible at distances of the order of 20–40 feet. One such device utilizes a metal horn with the microphone placed at the throat. In another form, applied commercially by RKO Studios, sound is picked up by an ellipsoidal or parabolic reflector and focused on a microphone, with the sensitive face of the transmitter turned away from the action. The advantages of this type of concentrator are relatively high gain, ability to record against wind or noise interference, and suitable acoustic characteristics for high quality pickup at a distance. The importance of these factors in lowering moving picture production costs is described.
Publication Date
1931-01-01
DOI
10.5594/J16624
Link
https://doi.org/10.5594/J16624
Author(s)
Carl Dreher
Source Data (JSON)

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Carl Dreher; Microphone Concentrators in Picture Production, Journal of the Society of Motion Picture Engineers ( Volume: 16, Issue: 1, January 1931); SMPTE, 1931. Available at https://doi.org/10.5594/J16624
Snippet:
Carl Dreher; Microphone Concentrators in Picture Production, Journal of the Society of Motion Picture Engineers ( Volume: 16, Issue: 1, January 1931); SMPTE, 1931. Available at https://doi.org/10.5594/J16624

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Carl Dreher; Microphone Concentrators in Picture Production, Journal of the Society of Motion Picture Engineers ( Volume: 16, Issue: 1, January 1931); SMPTE, 1931. Available at https://doi.org/10.5594/J16624
Snippet:
<span class="citation">Carl Dreher; <cite>Microphone Concentrators in Picture Production</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 16, Issue: 1, January 1931); SMPTE, 1931. Available at <a href="https://doi.org/10.5594/J16624" target="_blank" rel="noopener">https://doi.org/10.5594/J16624</a></span>

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Preview:
Carl Dreher; Microphone Concentrators in Picture Production, Journal of the Society of Motion Picture Engineers ( Volume: 16, Issue: 1, January 1931); SMPTE, 1931
doi: 10.5594/J16624
url: https://doi.org/10.5594/J16624
Snippet:
<li>
Carl Dreher; <cite id="bib-10-5594-j16624">Microphone Concentrators in Picture Production</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 16, Issue: 1, January 1931); SMPTE, 1931
<span class="doi">10.5594/J16624</span>
</li>