US 11,917,372 B2
Eardrum acoustic pressure estimation using feedback canceller
Henning Schepker, Oldenburg (DE); Christophe D. Micheyl, Saint Genis Laval (FR); Jumana Harianawala, Eden Prairie, MN (US); and Joyce Rosenthal, Golden Valley, MN (US)
Assigned to Starkey Laboratories, Inc., Eden Prairie, MN (US)
Filed by Starkey Laboratories, Inc., Eden Prairie, MN (US)
Filed on Jul. 8, 2022, as Appl. No. 17/811,460.
Claims priority of provisional application 63/220,118, filed on Jul. 9, 2021.
Prior Publication US 2023/0020280 A1, Jan. 19, 2023
Int. Cl. H04R 25/00 (2006.01)
CPC H04R 25/505 (2013.01) [H04R 25/305 (2013.01); H04R 25/453 (2013.01); H04R 25/604 (2013.01); H04R 2225/61 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method, comprising:
producing a receiver signal through a receiver of a hearing device, or a physical extension of the receiver, placed inside an ear canal of a user;
sensing a microphone signal, in response to the receiver signal, using a microphone placed outside the ear canal;
based on the receiver signal and the microphone signal, computing a reliability signal of the microphone signal;
based on the receiver signal and the microphone signal, computing a feedback-path signal;
computing a spectral representation signal of the feedback-path signal;
computing a real-ear response signal using a mathematical combination of the spectral-representation signal and the reliability signal; and
using the computed real-ear response signal to modify an operational characteristic of the hearing device, or to make a recommendation for a modification of a physical characteristic or operational characteristic of the hearing device.