US 12,075,210 B2
Sound source localization with co-located sensor elements
Frederic Francois Leon Lepoutre, Montreal (CA); Sahil Kumar Gupta, Montreal (CA); and Lucas Henrique Teixeira Carneiro, Montreal (CA)
Assigned to Soundskrit Inc., Montreal (CA)
Appl. No. 17/765,733
Filed by Soundskrit Inc., Montreal (CA)
PCT Filed Oct. 5, 2020, PCT No. PCT/IB2020/000853
§ 371(c)(1), (2) Date Mar. 31, 2022,
PCT Pub. No. WO2021/064468, PCT Pub. Date Apr. 8, 2021.
Claims priority of provisional application 62/910,901, filed on Oct. 4, 2019.
Prior Publication US 2022/0408180 A1, Dec. 22, 2022
Int. Cl. H04R 1/40 (2006.01); G01S 3/803 (2006.01); G01S 5/20 (2006.01); H04R 3/00 (2006.01)
CPC H04R 1/406 (2013.01) [G01S 3/8036 (2013.01); G01S 5/20 (2013.01); H04R 3/005 (2013.01); H04R 2430/20 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system comprising:
a plurality of microphones co-located with one another, each microphone of the plurality of microphones being configured to generate a signal representative of sound incident upon the plurality of microphones; and
a processor configured to determine data indicative of a location of a source of the sound based on the signals representative of the incident sound;
wherein the plurality of microphones comprise a directional microphone configured to generate a signal representative of a directional component of the sound, the directional microphone comprising a structure movably responsive to sound along a single axis over an entire audible frequency range;
wherein the processor is further configured to determine a ratio of direct sound energy and diffuse sound energy (DDR) for the incident sound as a function of the signals representative of the incident sound, and to determine a direction of arrival (DOA) for the incident sound based on the signals representative of the incident sound, and to determine the location of the source of the incident sound based on the determined DDR and the determined DOA.