US 12,407,982 B1
Optimal microphone selection on a remote speaker/microphone (RSM) assembly
Dean Thorson, Grayslake, IL (US); Bokchain Koh, Crystal Lake, IL (US); Matthew Newton, Park Ridge, IL (US); and Michael Oltmanns, Dyersville, IA (US)
Assigned to Relay, Inc., Raleigh, NC (US)
Filed by Relay, Inc., Raleigh, NC (US)
Filed on Jun. 10, 2025, as Appl. No. 19/233,345.
Int. Cl. H04R 3/00 (2006.01)
CPC H04R 3/005 (2013.01) 21 Claims
OG exemplary drawing
 
1. A method for selecting one or more microphones on a remote speaker/microphone (RSM) assembly for input to a noise reduction algorithm, the method comprising:
determining an up orientation for the RSM based on an embedded orientation sensor;
accessing a stored fixed mapping of microphone locations, the microphone locations being fixed and known relative to the orientation sensor;
determining, for each microphone on the RSM, an up distance relative to the orientation sensor based on the stored fixed mapping of microphone locations and current orientation of the orientation sensor;
ranking each microphone on the RSM from the uppermost to the lowermost;
selecting the uppermost microphone on the RSM assembly to serve as a voice input microphone;
selecting the microphone located furthest from the voice input microphone to serve as a noise input microphone;
connecting a first audio input from the selected voice input microphone to a noise reduction algorithm; and
connecting a second audio input from the selected noise input microphone to the noise reduction algorithm.