OSHA and similar approved ear defenders are converted to either one- or two-way communicators, without breaking through the defender structure. Driving the defender at selected external points by means of inertial transducers or by direct audio induction through the cup using a split transformer to energize an internal transducer produces acceptable and intelligible response within the defender. Demonstrations will be made.
Authors:
Cohen, Abraham; Sebesta, George J.; Hofer, Alan
Affiliation:
DYNA MAGNETIC DEVICES, INC., HICKSVILLE, NY
AES Convention:
52 (October 1975)
Paper Number:
1073
Publication Date:
October 1, 1975
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