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

Page scan 000620 from Journal of the Society of Motion Picture Engineers

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 #:
000620
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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June, 1941] ACOUSTIC DESIGN FEATURES 615 TABLE V Studio Review Rooms Review Size Room (Cu-Ft) Theater Optimum Reverberation Time (Cps) (Sec) Measured Reverberation Time (Empty) Reverberation Time in Per Cent Below Optimum Room 1 26,000 250 1.02 0.53 (Fig. 17) 500 0.94 0.60 1000 0.91 0.58 2000 Av. 0.91 0.52 40.4 0.94 0.56 Room 2 4,300 250 0.66 0.70 (Fig. 18) 500 0.63 0.50 1000 0.62 0.37 2000 Av. 0.62 0.33 23.8 0.63 0.48 Room 3 25,500 250 1.02 0.92 (Fig. 15) 500 0.94 0.90 1000 0.91 0.88 2000 Av. 0.91 0.85 5.3 0.94 0.89 Room 4 33,500 250 1.05 0.89 (Fig. 19) 500 0.97 0.80 1000 0.94 0.82 2000 Av. 0.94 0.77 15.4 0.97 0.82 Room 5 22,500 250 1.00 0.68 (Fig. 20) 500 0.93 0.54 1000 0.90 0.34 2000 0.90 0.34 Av. 0.93 0.48 48.4 Room 6 22,000 250 0.99 0.62 (Fig. 21) 500 0.92 0.67 1000 0.89 0.62 2000 0.89 0.56 Av. 0.92 0.62 32.6 Room 7 26,000 250 1.02 0.66 (Fig. 22) 500 0.94 0.61 1000 0.91 0.54 2000 0.91 0.57 Comments Dead Good Good Av. 0.94 0.60 36.2