Richardson's handbook of projection (1930)

Record Details:

Title:
Richardson's handbook of projection
Date:
1930
Publisher:
New York : Chalmers Publishing Company
Volume:
Richardson's handbook of projection
Leaf #:
000143
Language:
English
Subjects:
Motion Pictures, Motion Picture Technology
Collection:
Books
Format:
Books
Contributor:
Media History Digital Library
Sponsor:
Media History Digital Library
Coordinator:
Media History Digital Library
Description:
Date Added:
August 01, 2024
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MANAGERS AND PROJECTIONISTS 1067 Horns and Loud Speakers I BELIEVE it is right and proper to differentiate between "horns" and "loud speakers." True there are points of similarity, but also there are many points of difference. Up to now the term "horn'' and "loud speaker" have been used rather indiscriminately, which is, I think, a mistake. Great confusion arose and much harm was done in the earlier days of the industry by carelessness in the matter of nomenclature, the harmful effects persisting to this day. Surely that error should not now be repeated, and so far as it is possible, in my writings it will not be repeated. Unfortunately, however, up to the time of the preparation of this work, the Society of Motion Picture Engineers, which now is the authority in motion picture nomenclature, has taken no action to fix and standardize nomenclature with regard to sound apparatus. I therefore am obliged to use such terms as are now in use, which same may possibly be later altered. There are at this time two very different types of sound projectors in use in connection with motion picture work. One consists of a small metallic receiver coupled to a horn of considerable dimensions. The other is a small metallic receiver coupled to a cone of relatively small dimensions. For the purposes of this work I shall call the first a "sound projector'* and the latter a "loud speaker." Both really are sound projectors, of course, but by this means