Abstract
Incident to the many advances in recording and reproducing sound motion pictures, greater attention has been drawn to the necessity of reducing the noise from various sources integral to the theater. Analysis of the various sources, the factors influencing noise transmission, and the general structural limitations indicate that no general solutions of specific noise problems may be readily expressed except that of the reduction of noise directly at its source. In existing theaters many noise problems may be overcome by employing sound insulating and vibration isolating constructions adapted to the particular circumstances. Analysis of a large number of theater noise problems has indicated that attention to detail and to the proper use of materials has resulted in satisfactory solutions where other trial or temporary expedients have failed. In contemplated theater projects all aspects of the noise problem should be carefully considered, and every effort should be made to provide minimum noise conditions. It is anticipated that future designs will incorporate not only specifications for and requirements of necessary sound insulative construction, but also the maximum permissible noise level that may be created by any part of the theater equipment.
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