US 11,689,875 B2
Automatic spatial calibration for a loudspeaker system using artificial intelligence and nearfield response
Adrian Celestinos Arroyo, Valencia, CA (US); and Victor Manuel Chin Lopez, Tijuana (MX)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Gyeonggi-do (KR)
Filed by Samsung Electronics Co., Ltd., Gyeonggi-do (KR)
Filed on Dec. 21, 2021, as Appl. No. 17/558,380.
Claims priority of provisional application 63/226,654, filed on Jul. 28, 2021.
Prior Publication US 2023/0032280 A1, Feb. 2, 2023
Int. Cl. H04S 7/00 (2006.01); H04R 5/02 (2006.01); H04R 5/04 (2006.01); G06N 3/08 (2023.01); G06N 3/04 (2023.01); H04S 3/00 (2006.01)
CPC H04S 7/301 (2013.01) [G06N 3/04 (2013.01); G06N 3/08 (2013.01); H04R 5/02 (2013.01); H04R 5/04 (2013.01); H04S 3/008 (2013.01); H04S 2400/01 (2013.01); H04S 2400/13 (2013.01); H04S 2400/15 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of automatic spatial calibration, comprising:
estimating one or more distances from one or more loudspeakers to a listening area based on a machine learning model and one or more propagation delays from the one or more loudspeakers to the listening area;
estimating one or more incidence angles of the one or more loudspeakers relative to the listening area based on the one or more propagation delays; and
applying spatial perception correction to audio reproduced by the one or more loudspeakers based on the one or more distances and the one or more incidence angles, wherein the spatial perception correction comprises delay and gain compensation that corrects misplacement of any of the one or more loudspeakers relative to the listening area.