I am using a Steinberg UR22 interface and wonder if it's my interface that's the problem (do I need to purchase a PreSonus interface?) or if my audio setup is incorrect. I've tried a number of suggestions such as changing the I/O settings on the existing tracks as well as the new audio track, I've deleted and reinstalled S1, rebooted my computer, check for updates to S1 (I'm running the latest update for S1 Four), etc. I cannot figure out why I have thus far only been able to use S1 for mixing and MIDI recording. Audio recording seems to be elusive and only works essentially as a mixdown of the other tracks.