US 12,444,423 B2
System and method for single channel distant speech processing
Dushyant Sharma, Mountain House, CA (US)
Assigned to Microsoft Technology Licensing, LLC, Redmond, WA (US)
Filed by Microsoft Technology Licensing, LLC, Redmond, WA (US)
Filed on Oct. 27, 2022, as Appl. No. 17/974,674.
Prior Publication US 2024/0144936 A1, May 2, 2024
Int. Cl. G10L 17/20 (2013.01); G10L 17/02 (2013.01); G10L 21/028 (2013.01); H04S 3/00 (2006.01)
CPC G10L 17/20 (2013.01) [G10L 17/02 (2013.01); G10L 21/028 (2013.01); H04S 3/008 (2013.01); H04S 2400/01 (2013.01); H04S 2400/15 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A computer-implemented method, executed on a computing device, comprising:
receiving a signal from a single microphone;
generating a plurality of modified signals from the signal received from the single microphone, wherein the plurality of modified signals include at least a first acoustic parameter-specific signal and a second acoustic parameter-specific signal, the first acoustic parameter-specific signal having a higher C50 value than the second acoustic parameter-specific signal;
weighting each of the plurality of modified signals, wherein the first acoustic parameter-specific signal is assigned a higher weight than the second acoustic parameter-specific signal based on the first acoustic parameter-specific signal having a higher C50 value than the second acoustic parameter-specific signal;
generating a combined modified signal by combining the plurality of modified signals based upon, at least in part, the weighting of each of the plurality of modified signals; and
performing speech recognition on the combined modified signal.