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Transactions of the Society of Motion Picture Engineers ( Volume: 13, Issue: 37, May 1929)
[ACTIVE]

Machine for Cutting Master Disc Records

Metadata

Publisher
SMPTE
Doc Type
Journal Article
Article Type
research-article
Abstract
The machine used in recording sounds on phonograph discs synchronously with associated pictures consists essentially of a turntable, bearing the “wax” and rotated by a synchronous motor of constant speed, and an electricity driven stylus cutting the word. In the design of this machine the primary aim is to ensure that the record is both faithful to the original sounds and synchronous with the pictures. Fidelity in the performance of the stylus would be vitiated by departures from uniformity in the speed of the turntable while sounds were being recorded or reproduced. Although a constant speed motor is used, its value would be destroyed if the machinery transmitting the drive motor to turntable were not equally free of velocity variations. Thus the problem of fidelity involves not only the motor and the stylus but all the moving parts of the machine.
Publication Date
1929-05-01
DOI
10.5594/J10217
Link
https://doi.org/10.5594/J10217
Author(s)
L. A. Elmer, D. G. Blattner
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L. A. Elmer and D. G. Blattner; Machine for Cutting Master Disc Records, Transactions of the Society of Motion Picture Engineers ( Volume: 13, Issue: 37, May 1929); SMPTE, 1929. Available at https://doi.org/10.5594/J10217
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L. A. Elmer and D. G. Blattner; Machine for Cutting Master Disc Records, Transactions of the Society of Motion Picture Engineers ( Volume: 13, Issue: 37, May 1929); SMPTE, 1929. Available at https://doi.org/10.5594/J10217

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L. A. Elmer and D. G. Blattner; Machine for Cutting Master Disc Records, Transactions of the Society of Motion Picture Engineers ( Volume: 13, Issue: 37, May 1929); SMPTE, 1929. Available at https://doi.org/10.5594/J10217
Snippet:
<span class="citation">L. A. Elmer and D. G. Blattner; <cite>Machine for Cutting Master Disc Records</cite>, Transactions of the Society of Motion Picture Engineers ( Volume: 13, Issue: 37, May 1929); SMPTE, 1929. Available at <a href="https://doi.org/10.5594/J10217" target="_blank" rel="noopener">https://doi.org/10.5594/J10217</a></span>

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Preview:
L. A. Elmer and D. G. Blattner; Machine for Cutting Master Disc Records, Transactions of the Society of Motion Picture Engineers ( Volume: 13, Issue: 37, May 1929); SMPTE, 1929
doi: 10.5594/J10217
url: https://doi.org/10.5594/J10217
Snippet:
<li>
L. A. Elmer and D. G. Blattner; <cite id="bib-10-5594-j10217">Machine for Cutting Master Disc Records</cite>, Transactions of the Society of Motion Picture Engineers ( Volume: 13, Issue: 37, May 1929); SMPTE, 1929
<span class="doi">10.5594/J10217</span>
</li>