Feature request: Null and sensing audio engine

[humphrey]

I had a similar discussion some time ago:

Feature request: hot swop

Hello, I have a feature request: would it be possible to handle USB-soundcards in hot-swop mode? In detail: it would be extremely helpful if cantabile would be able to detect a vanishing and more important a re-connected soundcard and restart engine. Atm this is not the case: if I pull the usb cable and reconnect it the soundcard isn‘t remembered by cantabile. On the other hand turning off and on engine after reconnection by hand solves this problem. Probably it „only“ would need a small dete…