Ok so I have the presentation for the 3 first sections completed. I managed to fix my microphone to get an "OK" sound (there is a low white noise, but it should be okay).
Only the streaming part remains, as it seems the audio is not sent to the server. I need to figure out why... Otherwise, we can try doing a live session on mumble, and see if the lag isn't much of an issue.

I'll probably perform a test over the week-end if people are availaible.