A fitting device and a method of fitting a hearing device to compensate for the hearing loss of a user; and a hearing device and a method of reducing at least a part of a feedback in a hearing device

摘要

The present invention relates to a hearing device comprising a receiver and a microphone; wherein a feedback path from the receiver to the microphone exists; wherein the hearing device further comprises an adaptive feedback canceller adapted to reduce at least a part of the feedback; and wherein the adaptive feedback canceller comprises a fixed filter for modeling an invariant portion of the feedback path, and an adaptive filter for modeling a variant portion of the feedback path; and wherein the invariant portion is provided to the fixed filter of the hearing device independently of an actual user using the hearing device and the acoustical environment where the hearing device is put into use.;Thereby a hearing aid is achieved which contains a fixed filter which comprises the invariant portions of the feedback path.