A hearing aid is set forth that includes one or more hearing aid components that introduce an undesired undamped peak into the frequency response of the hearing aid. An electronic damping filter is utilized to compensate for the undamped peak. The electronic damping filter has a notch filter response...http://www.google.fr/patents/US6466678?utm_source=gb-gplus-shareBrevet US6466678 - Hearing aid having digital damping
