Journal of the Society of Motion Picture Engineers (1930-1949)

Record Details:

Title:
Journal of the Society of Motion Picture Engineers
Date:
1930-1949
Publisher:
New York, N.Y. : The Society
Volume:
Journal of the Society of Motion Picture Engineers
Leaf #:
000114
Language:
English
Collection:
Technical Journals
Format:
Periodicals
Contributor:
Prelinger Library
Sponsor:
MSN
Coordinator:
Media History Digital Library
Description:
The Journal of the Society of Motion Picture Engineers (SMPE)Êdocuments the technological progress of the film industry, highlighting technical developments in production and exhibition. Of special interest are articles about special effects, theater practices, lighting, and the introduction of the 16mm format. Initially titled "Transactions of the Journal of the Society of Motion Picture Engineers."Digitized by the Prelinger Library and the Library of Congress Motion Picture, Broadcasting and Recorded Sound Division.
Date Added:
July 19, 2022
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NEW ASPECTS OF REVERBERATION 97 « size of the room from about 1.2 seconds for a room of about 70,000 cubic feet to nearly 2 seconds for a room of 1,000,000 cubic feet. It is generally agreed that the most favorable conditions for music call for a somewhat greater reverberation period than is best for speech. This is best brought out by Prof. F. R. Watson in his book, "Acoustics of Buildings," from which my Fig. 2 is taken. Music produced in rooms with too little reverberation has usually been criticized as "dull." I know of no theories about why we like what we like in music. Why the musical effects resulting from re CUBE ROOT Of VOLUME -to /O 2O 30 40 50 60 70 SO SO /OO VOLUME //V CUBIC FEET /ooo /oooo /ooooo £00000 FIG. 2. Preferred reverberation time for music and speech (F. R. Watson). verberation should give greater pleasure to listeners than the same music produced, for example, out of doors, may be left to psychologists rather than to engineers to explain. Certain of the effects of reverberation, however, can be understood even by an engineer. SOME OF THE EFFECTS OF REVERBERATION First and probably most important is the increase in total sound volume. Power of expression in music calls for reaching high levels of loudness. In fact, it is probably more for the sake of loudness obtainable than for any other reason that orchestras are made up