Patent ID: 8731221

Claim:
A hearing aid comprising: a microphone; a hearing aid processing unit configured to perform hearing aid processing to a signal corresponding to sound collected by the microphone, and produce an output signal; a speaker configured to output sound generated from the output signal to an outside; and a drop detection unit comprising: an impulsive sound detection unit configured to detect impulsive sound due to the drop of the hearing aid via the microphone; and an audio feedback detection unit configured to detect audio feedback sound caused by the microphone and the speaker; wherein the drop detection unit detects the drop of the hearing aid based on an analysis of a signal corresponding to the impulsive sound and a signal corresponding to the audio feedback sound, and wherein the drop detection unit comprises a drop determination unit configured to determine whether the hearing aid is dropped, based on a relationship between a detection time of the impulsive sound detected by the impulsive sound detection unit and a detection time of the audio feedback detected by the audio feedback detection unit.