International Projectionist, Vol. 16

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Excerpt from International Projectionist, Vol. 16: January 1941The resulting directional pattern te sembles a cardioid and results from the combination of the figure 8 pattern of a velocity microphone and the circular pattern of a pressure-operated micro phone, 'as shown in the lower half of this figure. The forward lobe of the figure 8.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully, any imperfections that remain are intentionally left to preserve the state of such historical works.