Patent ID: 9148733
Filing Date: 2015-09-29
Classification: H04R

Abstract:
1. A hearing aid comprising: a behind-the-ear (BTE) hearing aid housing configured to be worn behind a pinna of a user; at least one BTE sound input transducer accommodated in the BTE hearing aid housing, each of which is configured for conversion of acoustic sound into a respective audio sound signal; an in-the-ear (ITE) microphone housing configured to be positioned in an outer ear of the user; at least one ITE microphone accommodated in the ITE microphone housing, each of which is configured for conversion of acoustic sound into a respective audio sound signal; at least one adaptive cue filter, each of which having an input that is provided with an output from the at least one BTE sound input transducer, wherein filter coefficients of the at least one adaptive cue filter are adapted so that a difference between an output of the at least one ITE microphone and a combined output of the at least one adaptive cue filter is reduced; a processor configured to generate a hearing loss compensated output signal based on output by the at least one cue filter; an output transducer for conversion of the hearing loss compensated output signal to an auditory output signal that can be received by a human auditory system; an adaptive feedback canceller for feedback suppression and having an input connected to the processor for reception of the hearing loss compensated output signal, wherein the adaptive feedback canceller is configured to provide at least one output modelling a feedback path between the output transducer and the at least one BTE sound input transducer, wherein the at least one output modelling the feedback path is provided to a subtractor for subtraction of the at least one output modelling the feedback path from the output of the at least one BTE sound input transducer to obtain a difference, the subtractor outputting the difference to the at least one adaptive cue filter; and a feedback and cue controller connected to the adaptive feedback canceller and the at least one adaptive cue filter, wherein the feedback and cue controller is configured to control the at least one adaptive cue filter so that the difference between the output of the at least one ITE microphone and the combined output of the at least one adaptive cue filter is reduced.