Journal of the Society of Motion Picture Engineers ( Volume: 46, Issue: 2, February 1946)

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Wave Propagation and Outdoor Field Tests of a Loudspeaker System

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Publisher: SMPTE — White Plains, NY, USA
Doc Type: Journal Article
Content Type: Original Research
Abbreviated Title: J SMPE
Volume: 46, No. 2, pp. 115–123
Abstract: This paper discusses data and observations made with a loudspeaker system outdoors with regard to sound transmission as affected by such factors as wind, temperature, and humidity. Other data are given on measured and computed sound pressure distribution characteristics of multiple element radiators.
Publication Date: 1946-02-01
DOI: 10.5594/J11853
ISSN: Print: 0097-5834
Link: https://doi.org/10.5594/J11853
Author(s): F. L. Hopper
R. C. Moody
Copyright: © 1946 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

1 Bedell E. H. : “Some Data on a Room Designed for Free Field Measurements,” J. Acoust. Soc. Amer. , VIII (Oct., 1936 ), p. 118 . EXTERNAL
2 Hopper F. L. Romanow F. F. : “Determination of Microphone Performance,” J. Soc. Mot. Pict. Eng. , XXXVI , 4 (Apr., 1941 ), p. 341 . EXTERNAL
3 McLachlan N. W. : “Loudspeakers—Theory, Performance, Testing and Design,” Oxford Press , 1934 . EXTERNAL
4 Wolff I. Malter L. : “Directional Radiation of Sound,” J. Acoust. Soc. Amer. , II (Oct., 1930 ), p. 201 . EXTERNAL
5 Houstoun R. A. : “A Treatise on Light,” Longmans-Green and Co. ( New York ), 1938 . EXTERNAL
6 Norton K. A. : “The Propagation of Radio Waves Over the Surface of the Earth, and in the Upper Atmosphere,” Proc. I.R.E. , 24 (Oct., 1936 ), p. 1367; 25 (Sept., 1937), p. 1203. EXTERNAL
7 Knudson V. O. : “The Absorption of Sound in Air, in Oxygen, and in Nitrogen. Effects of Temperature and Humidity,” J. Acoust. Soc. Amer. , V (Oct., 1933 ), p. 112 . EXTERNAL
8 Fletcher H. : “Loudness, Pitch and the Timbre of Musical Tones and Their Relation to the Intensity and the Frequency and the Overtone Structure,” J. Acoust. Soc. Amer. , VI (Oct., 1934 ), p. 59 . EXTERNAL

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F. L. Hopper and R. C. Moody; Wave Propagation and Outdoor Field Tests of a Loudspeaker System, Journal of the Society of Motion Picture Engineers ( Volume: 46, Issue: 2, February 1946); SMPTE, 1946. Available at https://doi.org/10.5594/J11853

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F. L. Hopper and R. C. Moody; Wave Propagation and Outdoor Field Tests of a Loudspeaker System, Journal of the Society of Motion Picture Engineers ( Volume: 46, Issue: 2, February 1946); SMPTE, 1946. Available at https://doi.org/10.5594/J11853

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<span class="citation">F. L. Hopper and R. C. Moody; <cite>Wave Propagation and Outdoor Field Tests of a Loudspeaker System</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 46, Issue: 2, February 1946); SMPTE, 1946. Available at <a href="https://doi.org/10.5594/J11853" target="_blank" rel="noopener">https://doi.org/10.5594/J11853</a></span>

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<li>
F. L. Hopper and R. C. Moody; <cite id="bib-10-5594-j11853">Wave Propagation and Outdoor Field Tests of a Loudspeaker System</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 46, Issue: 2, February 1946); SMPTE, 1946
<span class="doi">10.5594/J11853</span>
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