Graham, exactly what is your setup? Are the audio mics or are you recording directly from the Yamaha to your computer? Or are they USB mics? The reason I ask is because it makes a difference. If it is USB then maybe Window is turning those ports off. If it is audio then maybe either Windows or your DAW/BiaB is loosing the connections.

If you are using audio mics then I would ask why?


Me, it's not about how many times you fail, it's about how many times you get back up.
Cop, that's not how field sobriety tests work.

64 bit Win 10 Pro, the latest BiaB/RB, Roland Octa-Capture audio interface, a ton of software/hardware