Subminiature directional microphones having physical volumes of approximately 0.12 cm and masses of 0.3 gram have been designed using both ceramic and electret-condenser transducing systems. Computer-simulated original design data are compared with the experimental data, and show the way to predict the range of performance that can be achieved with emphasis on special types for hearing units.

Authors: Carlson, Elmer V.; Killion, Mead C.
Affiliation: Industrial Research Products, Inc., Elk Grove Village, IL
JAES Volume 22 Issue 2 pp. 92-96; March 1974
Publication Date: March 1, 1974

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