Patent ID: 6954535
Filing Date: 2005-10-11
Classification: H04R

Abstract:
1. A method for adapting a hearing aid to user-dependent conditions, comprising the steps of: providing a hearing aid device to be worn at an ear of a user, having a microphone arrangement with a directional characteristic comprising a plurality of microphones with filters respectively connected downstream therefrom, and filters being parameterizable in terms of amplitude response and phase response, and a signal processing stage and an earphone; while said user is wearing said hearing aid, exposing said hearing aid to acoustic waves from different directions to produce incoming acoustic signals to said microphones, said microphones converting said incoming acoustic signals into electrical signals; providing a measuring and evaluation unit externally from said hearing aid and supplying said electrical signals from said hearing aid to said external measuring and evaluation unit; in said measuring and evaluation unit, calculating filter parameters from said electrical signals that conform said directional characteristic to a predetermined, desired directional characteristic; and supplying said filter parameters from said measuring and evaluation unit to said filters in said hearing aid for setting at least one of said amplitude response and said phase response in each of said filters.