194 rigpi setting for Mumble.
interface 	
	audio input - sndrpiproto, dev-0 direct hardware device without any conversions
interface audio output - sndripproto - dev=0, direct hardware device without any conversions

laptop rigpi settings for mumble.
audio input - microphone 2-usb-bh209A
audio output - speakers - 2-usb-BH209A