Comment 3 for bug 844347

Further progress - I started Mumble, then killed PulseAudio (which doesn't seem to want to stay dead). With some trial and error I have been able to have at least a brief conversation. Some combinations of input and output ALSA device result in very choppy audio locally - including the text message notifications, so it's not network latency - but my current configuration, which seems to be working is:

Audio Input -> Interface -> System = ALSA, Device = [dsnoop:CARD=Device,DEV=0] C-Media USB Audio Device, USB Audio Direct sample snooping device
Audio Output -> Interface -> System = ALSA, Device = [front:CARD=Device,DEV=0] C-Media USB Audio Device, USB Audio Front speakers