US 12,445,786 B2
Active noise control for sound quality in hearing devices
Masahiro Sunohara, Plymouth, MN (US); Henning Schepker, Oldenburg (DE); Martin McKinney, Minneapolis, MN (US); and Piero Iared Rivera Benois, Bad Zwischenahn (DE)
Assigned to Starkey Laboratories, Inc., Eden Prairie, MN (US)
Filed by Starkey Laboratories, Inc., Eden Prairie, MN (US)
Filed on Aug. 9, 2023, as Appl. No. 18/446,808.
Claims priority of provisional application 63/396,313, filed on Aug. 9, 2022.
Prior Publication US 2024/0064477 A1, Feb. 22, 2024
Int. Cl. H04R 25/00 (2006.01); G10K 11/178 (2006.01)
CPC H04R 25/453 (2013.01) [G10K 11/17873 (2018.01); H04R 25/505 (2013.01); H04R 25/554 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for active noise cancellation (ANC) for a hearing device, the method comprising:
estimating a first sound pressure on an ear drum of a wearer of the hearing device caused by a hearing processing signal;
estimating a second sound pressure on the ear drum of the wearer of the hearing device caused by a leakage path of the hearing device;
computing a ratio of the first sound pressure and the second sound pressure to predict a comb-filtering effect for the hearing device;
computing an ANC controller using the computed ratio in one or more frequency ranges; and
canceling leaked sound into an ear canal of the wearer for the hearing device in the one or more frequency ranges using the ANC controller.