| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a hearing device with an improved feedback path model. <P>SOLUTION: The present invention relates to a hearing device comprising a receiver and a microphone in which a feedback path from the receiver to the microphone exists. The hearing device further comprises an adaptive feedback canceller adapted to reduce at least a part of the feedback. 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. 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. <P>COPYRIGHT: (C)2012,JPO&INPIT |
