Audiometer

Details Audiometer Audiometer

1978-02-15

1979-06-05

Claffy, Kathleen H.

179 1P, H04R 2900

Patent

active

041574567

ABSTRACT:
An audiometer that automatically produces test tones of predetermined duration whose frequency and level are changed in accordance with a programme. The persons being examined actuate a switch or the like each time that a test tone is perceived and the parameters of said test tone (frequency and level) are stored in a memory. Thus, evaluation becomes very simple. Furthermore, steps have been taken to measure the background level in the test room and to ensure that the test tone is repeated when the background level exceeds a maximum value during the time that the test tone is produced.

REFERENCES:
patent: 3808354 (1974-04-01), Feezor et al.

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