Clinical Masking of Air- and Bone-Conducted Stimuli

Abstract
Descriptive article on the steps to be used for clinical masking of one ear while testing the other. The preliminary steps are to find the minimum masking level for normals and to add 40 dB to these values and post them. Clinically the audiometer should decide whether masking is required, then add the unmasked BC loss of the masker to the starting level. If no threshold shift results, the unoccluded finding represents the threshold of the tested ear. If a threshold shift occurs, increase the noise by the amount of the threshold shift and retest. Special precautions are noted for masking an ear with an air-borne gap.
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