dheadshot

pcm.makemono {
    type route
    hint.description "Mono Capture"
    slave.pcm "hw:2"  #For some reason, it came up as Card 2 on a Pi3B+.  I guess on a Zero or maybe a 4 it would come up as Card 1.
    slave.channels 2  #This is the 2-microphone hat
    ttable {
        0.0 1         # Channel 0 outputs to 0 at 100% volume
        1.0 1         # Channel 1 outputs to 0 too at 100% volume
    }
}