Abstract
A series of measurements was made of the sound radiated by a large glass plate which forms part of the wall of the air-wall research building of The Pennsylvania State University. For most of the measurements, the plate was excited to flexual vibrations by a point force applied at its center. Measurements included the frequency dependence of the radiated sound level, the directional characteristics of the radiated sound, and the noise-transmission properties of the compound glass walls of the building. Sound-radiation efficiencies of the glass plate are determined at several frequencies in the audio range. The experimental results are compared with those predicted by theory.
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