Patent ID: 7697705
Filing Date: 2010-04-13
Classification: H04R

Abstract:
1. A digital hearing aid comprising: a microphone for converting sound into an electrical signal; at least one pre-filter for flattening a frequency response of the electrical signal; a plurality of programmable compression amplifiers, wherein each of the plurality of programmable compression amplifiers is programmed to adjust the pre-filtered electrical signal to compensate for frequency-dependent hearing loss of a user; at least one CORFIG filter for modifying the adjusted electrical signal by inserting a frequency response curve that corresponds to one of a plurality of CORFIG curves for said digital hearing aid, wherein the at least one CORFIG filter is separate from the plurality of programmable compression amplifiers, and the frequency curve inserted by the at least one CORFIG filter is independent of other filtering, including the flattening of the frequency response by the at least one pre-filter; and a receiver for converting said modified electrical signal into sound.