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Polydirectional Microphone

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1 Author(s)
Olson, Harry F. ; RCA Laboratories, Princeton, New Jersey

This paper describes a polydirectional microphone consisting of a single ribbon, the back of which is coupled to a damped folded pipe and an inertance in the form of an aperture. A single infinity of directional characteristics, ranging from bidirectional, through all variations of unidirectional to nondirectional, may be obtained by simply varying the size of the aperture.

Published in:

Proceedings of the IRE  (Volume:32 ,  Issue: 2 )

Date of Publication:

Feb. 1944

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