Device and method for adaption of microphones in a hearing aid

摘要

The system has two microphone input signals, Mic In (2) and Ref Mic (7). The signals are fed to first (1) and second (5) microphones with given transmission functions (s/s-pol-ac1) and (s/s- pol-ac2). The output of the first microphone goes to a compensation filter (3') with a transmission function dependent on the first two transmission functions (s-pol-ac1/s-pol-ac2). The output from this filter goes to a first output Out Mic 1 (4). The output of the second microphone goes to a second output Out Mic 2 (8).