US 11,990,110 B2
Methods and systems for real-time sound propagation estimation
Shahrokh Yadegari, La Jolla, CA (US); and Louis Pisha, San Diego, CA (US)
Assigned to The Regents of the University of California, Oakland, CA (US)
Filed by The Regents of the University of California, Oakland, CA (US)
Filed on Nov. 9, 2021, as Appl. No. 17/454,238.
Claims priority of provisional application 63/112,568, filed on Nov. 11, 2020.
Prior Publication US 2022/0148549 A1, May 12, 2022
Int. Cl. G10K 11/04 (2006.01); G06F 30/20 (2020.01); H04R 1/20 (2006.01); H04S 7/00 (2006.01)
CPC G10K 11/04 (2013.01) [G06F 30/20 (2020.01); H04R 1/20 (2013.01); H04S 7/30 (2013.01)] 26 Claims
OG exemplary drawing
 
1. A method of estimating diffraction of sound waves that travel from a first point to a second point in an environment that includes one or more objects, the method comprising:
obtaining a path between the first point and the second point;
selecting a plurality of distance values associated with the path;
for each distance value:
generating a subpath that passes through a third point located between the first point and the second point, wherein a separation between the third point and the path is equal to the distance value; and
determining, for the subpath, a transmission value corresponding to a degree of occlusion of the subpath by the one or more objects; and
determining a value of a diffraction amplitude response for propagation of the sound waves between the first point and the second point using a first transmission value determined for a first subpath generated for a first distance value and a second transmission value determined fora second subpath generated fora second distance value, wherein the second distance value is different from the first distance value.