US 11,743,661 B2
Hearing aid configured to select a reference microphone
Michael Syskind Pedersen, Smørum (DK); Jesper Jensen, Smørum (DK); and Christian Asp Mogensen, Smørum (DK)
Assigned to Oticon A/S, Smørum (DK)
Filed by Oticon A/S, Smørum (DK)
Filed on Feb. 8, 2022, as Appl. No. 17/667,293.
Claims priority of application No. 21156046 (EP), filed on Feb. 9, 2021.
Prior Publication US 2022/0256295 A1, Aug. 11, 2022
Int. Cl. H04R 25/00 (2006.01)
CPC H04R 25/405 (2013.01) [H04R 25/353 (2013.01); H04R 25/407 (2013.01); H04R 2225/021 (2013.01); H04R 2225/025 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A hearing aid adapted for being worn by a user at or in an ear of the user or to be partially or fully implanted in the user's head at an ear of the user, the hearing aid comprising
at least two microphones, providing respective at least two electric input signals representing sound around the user wearing the hearing aid;
a filter bank converting the at least two electric input signals into signals as a function of time and frequency;
a directional system connected to said at least two microphones and being configured to provide a filtered signal in dependence of said at least two electric input signals and fixed or adaptively updated beamformer weights; and
a direction to a target sound source being defined as a target direction;
wherein
for each frequency band, one of said at least two microphones at a given point in time is selected as a reference microphone, thereby providing a reference input signal for each frequency band, wherein the reference microphone for a given frequency band is selected in dependence of directional data related to directional characteristics of said at least two microphones, at the given point in time, for target sound impinging on the hearing aid from the target direction at said given point in time.