I'm trying to setup a Raspberry pi as a baby monitor. I have video working, but can't manage to figure out how to mux in audio from my USB microphone. Specs: Raspberry Pi B+ Raspberry Pi Camera Module USB Microphone # Video Working raspivid -h 972 -w 1296 -fps 12 -br 46 -o - -t 0 | cvlc -v stream://...