HEARING AID AND ITS CONTROLLING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a hearing aid, with which a user will not hear unpleasant howling sound, when the user fits the aid on the ear. SOLUTION: The hearing aid is constituted, in such a way that a sound processing circuit 113 makes muting until the standby time prestored in a memory 116 elapses after the power source to the aid is turned on or when the hearing aid is fitted to the ear of a user, without being provided with a sensor 121 which detects the fitting of the aid to the ear.