The talkies (1930)

Page scan 000211 from The talkies

Record Details:

Title:
The talkies
Date:
1930
Publisher:
London: Crosby Lockwood and Son
Volume:
The talkies
Leaf #:
000211
Language:
English
Collection:
Books
Format:
Books
Contributor:
Media History Digital Library
Sponsor:
Media History Digital Library
Coordinator:
Media History Digital Library
Description:
Date Added:
August 29, 2024
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THE TALKIES 139 shops and offices in busy thoroughfares. The installation engineers are already beginning to find this out. Halls built as theatres, with at least some eye to their acoustic properties, are proving an easier problem than those with large expanses of smooth wall, bare seats, and thinly carpeted gangways. In such houses it is frequently necessary to have nearly twice as much amplification for the hall when it is full, as is necessary when it is half empty. Walls should be broken up by recesses, pillars, and other architectural features, in order to avoid the need of introducing areas of sound-absorbent material, which, while preventing excessive reverberation, result in unfair suppression of the already unfortunate, yet so important, high frequencies. Very lofty ceilings, if they are more than 50 or 60 feet high, tend to produce echoes which may be most disconcerting. These can, however, be prevented to a large extent by the coffering or recessing of ceilings, and by the provision of surfaces rendered irregular by plaster work and carving of one sort or another. Candelabra and other metal fittings have been known to produce trouble by jingling sympathetically when certain notes are played, an effect similar to that noticeable on pianos, when some ornament is not resting firmly on the top.