audiometer

7.57  audiometer. Device used to measure hearing sensitivity, specifically hearing level, as a function of frequency. Annotation 1          A manual audiometer is a pure-tone audiometer in which the signal presentations, frequency, hearing level selection, and recording of results are performed manually. Annotation 2          A Bekesy audiometer is a pure-tone audiometer where hearing level variations are under the subject's control. Signal presentations, frequency selection or frequency variation, and recording of subject responses are implemented and recorded automatically. Annotation 3          A computer-controlled audiometer is a pure-tone audiometer in which the test procedure is controlled by a computer.