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Journal of the Society of Motion Picture Engineers ( Volume: 33, Issue: 11, November 1939)
[ACTIVE]

Effect of Orientation of the Scanning Image on the Quality of Sound Reproduced from Variable-Width Records

Metadata

Publisher
SMPTE
Doc Type
Journal Article
Article Type
research-article
Abstract
This paper gives a general analytical theory of reproducing variable width records with oblique images. Two types of records are considered. In each case the effect of obliquity is to introduce non-linear distortion and loss of power; but the amount of distortion produced and its dependence on the modulation are different in the two types of records. The loss due to the width of the image is practically independent of the orientation of the reproducing image. Curves are given which show the amount of distortion produced by an error of orientation of 43 minutes when the width of the sound-track is 0.080 inch.
Publication Date
1939-11-01
DOI
10.5594/J11919
Link
https://doi.org/10.5594/J11919
Author(s)
Donald Foster
Source Data (JSON)

Full registry record with provenance metadata. Open directly: /api/doc/10.5594-J11919.json

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Plain text (ISO 690 compliant)

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Donald Foster; Effect of Orientation of the Scanning Image on the Quality of Sound Reproduced from Variable-Width Records, Journal of the Society of Motion Picture Engineers ( Volume: 33, Issue: 11, November 1939); SMPTE, 1939. Available at https://doi.org/10.5594/J11919
Snippet:
Donald Foster; Effect of Orientation of the Scanning Image on the Quality of Sound Reproduced from Variable-Width Records, Journal of the Society of Motion Picture Engineers ( Volume: 33, Issue: 11, November 1939); SMPTE, 1939. Available at https://doi.org/10.5594/J11919

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Preview:
Donald Foster; Effect of Orientation of the Scanning Image on the Quality of Sound Reproduced from Variable-Width Records, Journal of the Society of Motion Picture Engineers ( Volume: 33, Issue: 11, November 1939); SMPTE, 1939. Available at https://doi.org/10.5594/J11919
Snippet:
<span class="citation">Donald Foster; <cite>Effect of Orientation of the Scanning Image on the Quality of Sound Reproduced from Variable-Width Records</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 33, Issue: 11, November 1939); SMPTE, 1939. Available at <a href="https://doi.org/10.5594/J11919" target="_blank" rel="noopener">https://doi.org/10.5594/J11919</a></span>

SMPTE Icon SMPTE's HTML Pub

Preview:
Donald Foster; Effect of Orientation of the Scanning Image on the Quality of Sound Reproduced from Variable-Width Records, Journal of the Society of Motion Picture Engineers ( Volume: 33, Issue: 11, November 1939); SMPTE, 1939
doi: 10.5594/J11919
url: https://doi.org/10.5594/J11919
Snippet:
<li>
Donald Foster; <cite id="bib-10-5594-j11919">Effect of Orientation of the Scanning Image on the Quality of Sound Reproduced from Variable-Width Records</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 33, Issue: 11, November 1939); SMPTE, 1939
<span class="doi">10.5594/J11919</span>
</li>