US 12,002,483 B2
Systems and methods for reducing wind noise
Gongqiang Yu, Redmond, WA (US); Michael Smedegaard, Bellevue, WA (US); and Tetsuro Oishi, Bothell, WA (US)
Assigned to Meta Platforms Technologies, LLC, Menlo Park, CA (US)
Filed by Meta Platforms Technologies, LLC, Menlo Park, CA (US)
Filed on Apr. 18, 2022, as Appl. No. 17/722,751.
Application 17/722,751 is a continuation of application No. 16/872,083, filed on May 11, 2020, granted, now 11,308,972.
Prior Publication US 2022/0284913 A1, Sep. 8, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G10L 21/0232 (2013.01); G10L 25/18 (2013.01); H04R 1/40 (2006.01); H04R 3/00 (2006.01); H04R 3/04 (2006.01); H04R 29/00 (2006.01); G10L 21/0216 (2013.01)
CPC G10L 21/0232 (2013.01) [G10L 25/18 (2013.01); H04R 1/406 (2013.01); H04R 3/005 (2013.01); H04R 3/04 (2013.01); H04R 29/005 (2013.01); G10L 2021/02166 (2013.01); H04R 2410/01 (2013.01); H04R 2410/07 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A system comprising:
one or more processors coupled to a non-transitory computer-readable storage medium having instructions encoded thereon that, when executed by the one or more processors, cause the one or more processors to:
obtain signals respectively generated from two or more microphones during a time period, the signals representing acoustic energy detected by the two or more microphones during the time period;
determine a coherence between the signals and a spectral gain between the signals based at least on the coherence; and
determine and apply a filter as a convolution of the spectral gain based on the coherence and a band-pass filter configured to cutoff frequencies outside an audible range, the filter comprising an absolute value of the convolution of the spectral gain; and
wherein the filter is configured to reduce wind noise in one or more of the signals.