HEARING AID

摘要

Disclosed is a hearing aid that can alert the user when the hearing aid microphone fails, which is equipped with a first AD converter (8a), a second AD converter (8b), a microphone sensitivity correction part (9), which is connected to the output side of the second AD converter (8b), a hearing assistance processor (10), into which the output of the microphone sensitivity correction part (9) and the output of the first AD converter (8a) are input, a microphone sensitivity correction value calculator (11), into which the output of the first AD converter (8a) and the output of the second AD converter (8b) are input, and one output of which is connected to the microphone sensitivity correction part (9), a memory part (12), which is connected to the other output of the microphone sensitivity correction value calculator (11), a failure detector (13), to which the signals output from the output of the memory part (12) and the other output of the microphone sensitivity correction value calculator (11) are input, a sound output part (14), to which the output signal of the failure detector (13) and the output signal of the hearing assistance processor (10) are input, a DA converter (15), which is connected to the output side of the sound output part (14), and a receiver (7), which is connected to the output side of the DA converter (15).