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Journal of the Society of Motion Picture Engineers ( Volume: 23, Issue: 4, October 1934)
[ACTIVE]

Piezoelectric Microphones

Metadata

Publisher
SMPTE
Doc Type
Journal Article
Article Type
research-article
Abstract
The development of the. Rochelle salt crystal microphone, with particular reference to the grille and sound-cell type, is described; and the construction of the sound-cells and the method employed for rendering them air-tight and water-proof are explained. Due to the small size of the microphones they are relatively free from distortion arising from cavity resonance, diffraction, and phase-shift, and are non-directional. Comparative response curves ranging in frequency from 50 to 10,***000 cycles per second are presented. Special types of piezoelectric microphones for sound picture recording, radio broadcasting, and theater sound-reinforcing systems are described. Some of their physical, electrical, and acoustical characteristics are discussed, including those of a new unidirectional instrument.
Publication Date
1934-10-01
DOI
10.5594/J05439
Link
https://doi.org/10.5594/J05439
Author(s)
A. L. Williams
Source Data (JSON)

Full registry record with provenance metadata. Open directly: /api/doc/10.5594-J05439.json

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A. L. Williams; Piezoelectric Microphones, Journal of the Society of Motion Picture Engineers ( Volume: 23, Issue: 4, October 1934); SMPTE, 1934. Available at https://doi.org/10.5594/J05439
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A. L. Williams; Piezoelectric Microphones, Journal of the Society of Motion Picture Engineers ( Volume: 23, Issue: 4, October 1934); SMPTE, 1934. Available at https://doi.org/10.5594/J05439

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A. L. Williams; Piezoelectric Microphones, Journal of the Society of Motion Picture Engineers ( Volume: 23, Issue: 4, October 1934); SMPTE, 1934. Available at https://doi.org/10.5594/J05439
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<span class="citation">A. L. Williams; <cite>Piezoelectric Microphones</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 23, Issue: 4, October 1934); SMPTE, 1934. Available at <a href="https://doi.org/10.5594/J05439" target="_blank" rel="noopener">https://doi.org/10.5594/J05439</a></span>

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Preview:
A. L. Williams; Piezoelectric Microphones, Journal of the Society of Motion Picture Engineers ( Volume: 23, Issue: 4, October 1934); SMPTE, 1934
doi: 10.5594/J05439
url: https://doi.org/10.5594/J05439
Snippet:
<li>
A. L. Williams; <cite id="bib-10-5594-j05439">Piezoelectric Microphones</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 23, Issue: 4, October 1934); SMPTE, 1934
<span class="doi">10.5594/J05439</span>
</li>