Semin Hear 2014; 35(04): 295-311
DOI: 10.1055/s-0034-1390160
Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.

Sound Level Calibration: Microphones, Ear Simulators, Couplers, and Sound Level Meters

Dr.-Ing. Thomas Fedtke,
Lee Grason
2   Grason & Associates, LLC, Rindge, New Hampshire
› Author Affiliations
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Publication History

Publication Date:
28 October 2014 (online)

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Abstract

This article describes the instrumentation used for the calibration of audiometric equipment and how the sound level measurements are traced back to national/international references. Couplers and ear simulators are crucial for the measurement of the output of audiometric transducers. Therefore, special attention is given to their specification, application, and testing.