US 12,470,870 B2
Spatial sound improvement for seat audio using spatial sound zones
Matthias Von Saint-George, Pfinztal (DE); Martin Olsen, Struer (DK); and Daniel Bracht, Karlsruhe (DE)
Assigned to Harman Becker Automotive Systems Gmbh, Karlsbad-Ittersbach (DE)
Filed by HARMAN BECKER AUTOMOTIVE SYSTEMS GmbH, Karlsbad-Ittersbach (DE)
Filed on Nov. 29, 2023, as Appl. No. 18/523,644.
Claims priority of application No. 22210809 (EP), filed on Dec. 1, 2022.
Prior Publication US 2024/0187790 A1, Jun. 6, 2024
Int. Cl. H04R 3/12 (2006.01); H04R 5/02 (2006.01); H04R 5/04 (2006.01); H04S 7/00 (2006.01)
CPC H04R 3/12 (2013.01) [H04R 5/02 (2013.01); H04R 5/04 (2013.01); H04S 7/302 (2013.01); H04S 2400/11 (2013.01); H04S 2420/01 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A computer-implemented method carried out by an audio system comprising at least a processor and a plurality of loudspeakers, comprising:
receiving an audio signal to be output to a listener;
obtaining a first Head Related Transfer Function (HRTF) corresponding to a first predefined listening pose of the listener;
obtaining a second HRTF corresponding to a second predefined listening pose of the listener different from the first predefined listening pose;
determining, for each of the plurality of loudspeakers a respective loudspeaker signal using the audio signal, the first HRTF, and the second HRTF; and
simultaneously outputting, via the plurality of loudspeakers using the loudspeaker signals, a first sound signal for the first predefined listening pose corresponding to the audio signal as processed with the first HRTF and limited to a first predefined spatial zone, and a second sound signal for the second predefined listening pose corresponding to the audio signal as processed with the second HRTF and limited to a second predefined spatial zone different from the first predefined spatial zone.