US 11,895,467 B2
Apparatus and method for estimation of eardrum sound pressure based on secondary path measurement
Wenyu Jin, Eden Prairie, MN (US); and Henning Schepker, Oldenburg (DE)
Assigned to Starkey Laboratories, Inc., Eden Prairie, MN (US)
Filed by Starkey Laboratories, Inc., Eden Prairie, MN (US)
Filed on Jan. 13, 2023, as Appl. No. 18/096,961.
Application 18/096,961 is a continuation of application No. 17/490,057, filed on Sep. 30, 2021, granted, now 11,558,703.
Claims priority of provisional application 63/117,697, filed on Nov. 24, 2020.
Prior Publication US 2023/0224653 A1, Jul. 13, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04R 29/00 (2006.01); H04R 25/00 (2006.01)
CPC H04R 29/00 (2013.01) [H04R 25/305 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method comprising:
determining a least squares estimate and a reduced dimensionality estimate that both estimate a relative transfer function between secondary path measurements and associated acoustic transducer-to-eardrum responses of a hearing device;
determining a cutoff frequency for an individual based on a secondary path measurement performed on the individual;
determining a first acoustic transducer-to-eardrum response below the cutoff frequency using the secondary path measurement and the least squares estimate;
determining a second acoustic transducer-to-eardrum response above the cutoff frequency using the secondary path measurement and the reduced dimensionality estimate; and
predicting a sound pressure level caused by the hearing device at an eardrum of the individual using the first and second acoustic transducer-to-eardrum responses.