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Journal of the Society of Motion Picture Engineers ( Volume: 34, Issue: 1, January 1940)
[ACTIVE]

Starting Characteristics of Speech Sounds

Metadata

Publisher
SMPTE — White Plains, NY, USA
Doc Type
Journal Article
Content Type
Original Research
Abbreviated Title
J SMPE
Volume
34, No. 1, pp. 43–58
Abstract
In view of its bearing on the design of ground-noise-reduction systems, a study was undertaken to determine how sudden or rapid are the increases in amplitude of the speech sounds that must be recorded in dialog. A large number of oscillograms were taken, a number of which are reproduced herewith. The most important observation is that the human voice can start several of the vowel sounds in such a way that the first wave is from 40 to 80 per cent of the final amplitude, or, in other words, with a suddenness comparable to that of keying in an oscillator. However, this is rare, being for all practical purposes confined to a few of the more open vowel sounds, when not preceded by any consonant, and true only of certain individuals, depending on the manner of releasing the breath. Progressive build-up at rates which would carry the modulation from zero to 100 per cent in 0.05 second are frequent, while the great majority of syllables start more gradually than this.
Publication Date
1940-01-01
DOI
10.5594/J00025
ISSN
Print: 0097-5834
Link
https://doi.org/10.5594/J00025
Author(s)
R. O. Drew
E. W. KelloggRCA Manufacturing Co., Camden, N. J.
Copyright
© 1940 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

  • 1 Sacia C. F. : “Speech Powers and Energy,” Bell Syst. Tech. J. , 4 (April, 1925 ), p. 627 . EXTERNAL
  • 2 Read S. Jr. : “A Neon Type Volume Indicator,” J. Soc. Mot. Pict. Eng. , XXVIII (June, 1937 ), p. 633 . EXTERNAL
  • 3 Hathaway J. L. : “Microphone Polarity and Overmodulation,” Electronics (Oct., 1939 ), p. 28 . EXTERNAL
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R. O. Drew and E. W. Kellogg; Starting Characteristics of Speech Sounds, Journal of the Society of Motion Picture Engineers ( Volume: 34, Issue: 1, January 1940); SMPTE, 1940. Available at https://doi.org/10.5594/J00025
Snippet:
R. O. Drew and E. W. Kellogg; Starting Characteristics of Speech Sounds, Journal of the Society of Motion Picture Engineers ( Volume: 34, Issue: 1, January 1940); SMPTE, 1940. Available at https://doi.org/10.5594/J00025

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R. O. Drew and E. W. Kellogg; Starting Characteristics of Speech Sounds, Journal of the Society of Motion Picture Engineers ( Volume: 34, Issue: 1, January 1940); SMPTE, 1940. Available at https://doi.org/10.5594/J00025
Snippet:
<span class="citation">R. O. Drew and E. W. Kellogg; <cite>Starting Characteristics of Speech Sounds</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 34, Issue: 1, January 1940); SMPTE, 1940. Available at <a href="https://doi.org/10.5594/J00025" target="_blank" rel="noopener">https://doi.org/10.5594/J00025</a></span>

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Preview:
R. O. Drew and E. W. Kellogg; Starting Characteristics of Speech Sounds, Journal of the Society of Motion Picture Engineers ( Volume: 34, Issue: 1, January 1940); SMPTE, 1940
doi: 10.5594/J00025
url: https://doi.org/10.5594/J00025
Snippet:
<li>
R. O. Drew and E. W. Kellogg; <cite id="bib-10-5594-j00025">Starting Characteristics of Speech Sounds</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 34, Issue: 1, January 1940); SMPTE, 1940
<span class="doi">10.5594/J00025</span>
</li>

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