16-mm sound motion pictures : a manual for the professional and the amateur (1953)

Record Details:

Title:
16-mm sound motion pictures : a manual for the professional and the amateur
Date:
1953
Publisher:
New York : Interscience Publishers
Volume:
16-mm sound motion pictures : a manual for the professional and the amateur
Leaf #:
000511
Language:
English
Subjects:
Motion Pictures, Motion Picture Technology
Collection:
Books
Format:
Books
Contributor:
Niles Essanay Silent Film Museum
Sponsor:
Media History Digital Library
Coordinator:
Media History Digital Library
Description:
Date Added:
April 11, 2024
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PRACTICAL PROJECTOR PERFORMANCE 495 A A, J-h-S^ ,f s\)\JV ^ "O'Aj imuth Ang ^ -15* A /M^ h^ 'Alt \ rimuth An< ft/ V 4 84 / -v A f\i / IV \ A/I) / A V 0° /■ V \ \ J 15° / s A J yj V\ -0° / J \ J / \J 15* / c 92 98 88 94 84 90 80 86 98 98 94 94 90 90 86 86 / °V ' ■'/) Yj^ ■ / \l -15 / E 1r rA) 1 -v f\ rv V I / u v Vrt 0° / \f\ )r \ w -I5° /'F 100 96 92 100 300 1000 4000 100 300 1000 4000 FREOUENCY.eps Fig. 116D. Response-frequency characteristics of loudspeakers of commercial sound projectors A to F, inclusive, at 0° and 15° azimuth. Approximately 1 watt was fed into the loudspeaker under test, from a constant voltage source.