Sound motion pictures : from the laboratory to their presentation (1929)

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9o SOUND MOTION PICTURES in the matter of hearing. And since he knows better than to expect to take care of the matter himself he must not only rely on the expert who knows, but must know enough, himself, to cooperate effectively. He must look at his house from this angle as a thing to be learned all over again. The matter of acoustics presents one of the most important problems in the installation of sound equipment in studios as well as in theatres; for upon the correct principles will depend, in a large measure, the value and quality of good installations. There is no longer any justification for bad auditory conditions since there is an ample and exact science of architectural acoustics which can be applied in the correction of existing auditoriums that may be found faulty, or in the designing of new studios or theatres. If patrons are to enjoy sound pictures it is obviously important to produce comfortable conditions of hearing. The results of researches in this field have been made available in a practical and commercial form. With the expert assistance that is now at hand, and with the materials that have proved of value in bringing about the proper results, a technique of construction has been developed through experience that will solve most difficulties of this sort. It has long been customary, in the vast majority of cases, to design theatres at considerable expense, with special efforts to secure strength, speaking capacity, fine architectural lines, aesthetic illumination, and proper ventilation. Yet there has always been a gamble as to whether the acoustics of the auditorium would be good or bad. In a theatre this neglected problem equals in importance that of lighting, heating, or ventilation; but, although some consideration has been given to the matter in the past, it is only recently, because of the introduction of sound motion pictures, that the real importance of adequate planning has been realized.