An audiometer having an air-conduction receiver, a bone-conduction receiver, a masking receiver and an audiometer body is provided, in which the air-conduction receiver, the bone-conduction receiver, and the masking receiver are respectively provided with serial ROMs in which identification information and calibration information of each receiver are stored. The audiometer body comprises a misconnection detector for detecting misconnection of each receiver, a calibration period judging mechanism for judging a calibration transition period of each receiver, and a correction amount computer for computing a correction amount of sound pressure based on the information stored in the serial ROMs.
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