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Binaural hearing assistance system comprising binaural noise reduction

  • US 10,123,134 B2
  • Filed: 11/01/2016
  • Issued: 11/06/2018
  • Est. Priority Date: 04/03/2014
  • Status: Active Grant
First Claim
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1. A binaural hearing assistance system comprising left and right hearing assistance devices adapted for being located at or in left and right ears of a user, or adapted for being fully or partially implanted in the head of the user, each of the left and right hearing assistance devices comprisinga) a multitude of input units IUi, i=1, . . . , M, M being larger than or equal to two, for providing a time-frequency representation Xi(k,m) of an input signal xi(n) at an ith input unit in a number of frequency bands and a number of time instances, k being a frequency band index, m being a time index, n representing time, the time-frequency representation Xi(k,m) of the ith input signal comprising a target signal component and a noise signal component, the target signal component originating from a target signal source;

  • andb) a multi-input unit noise reduction system comprising a multi-channel beamformer filtering unit operationally coupled to said multitude of input units IUi, i=1, . . . , M, and configured to provide a beamformed signal Y(k,m), wherein signal components from other directions than a direction of the target signal source are attenuated, whereas signal components from the direction of the target signal source are left un-attenuated or attenuated less than signal components from said other directions;

    wherein the binaural hearing assistance system furthercomprises a user interface configured to communicate with said left and right hearing assistance devices and to allow a user to influence functionality of the left and right hearing assistance devices, andis configured to allow a user to indicate a direction to or a location of the target signal source relative to the user via said user interface, andis adapted to synchronize the respective multi-channel beamformer filtering units of the left and right hearing assistance devices so that both beamformer filtering units focus on the direction or location of the target signal source.

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