US 11,792,594 B2
Simultaneous deconvolution of loudspeaker-room impulse responses with linearly-optimal techniques
Sunil Bharitkar, Stevenson Ranch, CA (US)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Jan. 25, 2022, as Appl. No. 17/584,181.
Claims priority of provisional application 63/227,024, filed on Jul. 29, 2021.
Prior Publication US 2023/0052010 A1, Feb. 16, 2023
Int. Cl. H04S 7/00 (2006.01); H04R 5/02 (2006.01); H04R 5/04 (2006.01); H04S 3/00 (2006.01); H04R 5/027 (2006.01)
CPC H04S 7/301 (2013.01) [H04R 5/02 (2013.01); H04R 5/027 (2013.01); H04R 5/04 (2013.01); H04S 3/008 (2013.01); H04S 7/305 (2013.01); H04S 2400/01 (2013.01); H04S 2400/15 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
determining stimuli for simultaneously exciting a plurality of speakers within a spatial area, wherein the stimuli comprises a plurality of stimulus signals, and each of the plurality of stimulus signals is circularly shifted relative to another of the plurality of stimulus signals by an amount based on a pre-determined number of samples;
simultaneously exciting the plurality of speakers by providing the stimuli to the plurality of speakers at the same time for reproduction, wherein each of the plurality of speakers reproduces a different stimulus signal of the plurality of stimulus signals during the reproduction;
recording, during the reproduction, one or more measurements of sound arriving at one or more microphones within the spatial area; and
simultaneously deconvolving a plurality of impulse responses of the plurality of speakers based on the stimuli and the one or more measurements.