Hearing device comprising a microphone control system

A hearing device adapted for being arranged at least partly on a user's head or at least partly implanted in a user's head, the hearing device comprising

• an input unit for providing a multitude of electric input signals representing sound, the input unit comprising
• a first input transducer for picking up a sound signal from the environment and providing a first electric input signal, the first input transducer being located on the head of the user;
• a second input transducer for picking up a sound signal from the environment and providing a second electric input signal, the second input transducer being located at or in an ear canal of the user,
• a signal processing unit providing a processed signal based on one or more of said first and second electric input signals, the signal processing unit comprising
• a weighting or beamformer unit for providing a weighted or beamformed signal by applying respective first and second weights to the first and second electric input signals and combining the weighted first and second electric input signals or signals derived therefrom to the weighted or beamformed signal, and
• a hearing loss processing unit coupled to the weighting or beamformer unit and providing the processed signal, wherein the hearing loss processing unit is configured to determine a current level and frequency dependent target gain, and
• an output unit comprising an output transducer for converting said processed signal or a signal originating therefrom to a stimulus perceivable by said user as sound;
• the hearing device further comprising
• a feedback detection unit for providing a measure, termed the feedback measure, of the current level of feedback from the output transducer to the first and/or second input transducer or a difference there between;
• and
• an input signal weight control unit configured to control or influence the first and second weights applied to the first and second electric input signals in dependence of said measure of the current level of feedback, and said current level and frequency dependent target gain,
• wherein the input signal weight control unit is configured to control the first and second weights to avoid howl while providing the current level and frequency dependent target gain.