US 11,856,370 B2
System for audio rendering comprising a binaural hearing device and an external device
Changxue Ma, Barrington, IL (US); Andrew Dittberner, Antioch, IL (US); and Eugene Brandewie, Duluth, MN (US)
Assigned to GN HEARING A/S, Ballerup (DK)
Filed by GN Hearing A/S, Ballerup (DK)
Filed on Aug. 27, 2021, as Appl. No. 17/460,078.
Prior Publication US 2021/0392448 A1, Dec. 16, 2021
Int. Cl. H04R 25/00 (2006.01); H04S 7/00 (2006.01)
CPC H04R 25/552 (2013.01) [H04R 25/558 (2013.01); H04S 7/301 (2013.01); H04R 25/70 (2013.01); H04R 2225/55 (2013.01); H04S 2420/01 (2013.01)] 24 Claims
OG exemplary drawing
 
1. A system for audio rendering comprising a binaural hearing device configured to be worn by a user and an external device configured to be arranged at a distance from the user,
wherein the binaural hearing device comprises:
a left output transducer configured for placement in a left ear of the user,
a right output transducer configured for placement in a right ear of the user, one or more sensors for measuring an orientation of a head of the user, and
a first wireless communication unit configured to wirelessly transmit a signal indicating the orientation of the head of the user to the external device;
wherein the external device comprises:
a second wireless communication unit configured to wirelessly receive the signal indicating the orientation of the head of the user transmitted from the binaural hearing device,
a memory storing head-related transfer functions (HRTF) respectively for the left ear and the right ear of the user,
an input transducer configured to capture sound at a distance from the user, and
a processing unit configured to determine a spatialized binaural audio signal based on the captured sound, the orientation of the head of the user, and the head-related transfer functions (HRTF),
wherein the second wireless communication unit is configured to transmit the spatialized binaural audio signal to the binaural hearing device;
wherein the binaural hearing device is configured to receive the spatialized binaural audio signal transmitted from the external device, and provide left audio output and right audio output via the left output transducer and the right output transducer, respectively, based on the spatialized binaural audio signal.