US 12,250,526 B2
Audio beamforming with nulling control system and methods
Wenshun Tian, Palatine, IL (US); and Michael Ryan Lester, Colorado Springs, CO (US)
Assigned to Shure Acquisition Holdings, Inc., Niles, IL (US)
Filed by Shure Acquisition Holdings, Inc., Niles, IL (US)
Filed on Jan. 6, 2023, as Appl. No. 18/151,042.
Claims priority of provisional application 63/266,555, filed on Jan. 7, 2022.
Prior Publication US 2023/0224635 A1, Jul. 13, 2023
Int. Cl. H04R 1/28 (2006.01); G10L 21/0232 (2013.01); H04R 1/02 (2006.01); H04R 1/40 (2006.01); H04R 3/00 (2006.01); G10L 21/0208 (2013.01); G10L 21/0216 (2013.01)
CPC H04R 3/005 (2013.01) [G10L 21/0232 (2013.01); H04R 1/406 (2013.01); G10L 2021/02082 (2013.01); G10L 2021/02166 (2013.01); H04R 2201/401 (2013.01); H04R 2410/01 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method, comprising:
receiving a plurality of audio signals from a plurality of microphones;
receiving a first steering vector associated with a desired sound location and a second steering vector associated with an undesired sound location;
generating a set of beamformer coefficients based on the first steering vector and the second steering vector, wherein the set of beamformer coefficients is generated to result in a beamformed signal associated with a lobe steered towards the desired sound location and a null steered towards the undesired sound location; and
generating the beamformed signal based on the plurality of audio signals and the set of beamformer coefficients, using a frequency domain beamforming technique.