| 摘要 |
An audiometer includes: sound output means for externally outputting a test sound for testing hearing; sound input means for fetching the output test sound; storage means for storing a reference signal value for a predetermined sound pressure level of a predetermined frequency; detection means for detecting a sound pressure level signal value of the fetched test sound; instruction means for instructing a calibration start; and calibration means for, when the calibration start is instructed, permitting the sound output means to output the test sound based on the stored reference signal value, and for calibrating the output of the test sound so as to establish a predetermined relationship between the detected sound pressure level signal value and the reference signal value.
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