So I was just testing this out a bit further...
I'm using a drum track from DM1 through inter-app audio, when I changed the project from 44.1khz/16 bit to 96khz/24 bit I got the message saying I would get crackle issues with inter-app audio running at more than 44.1khz, but I ignored this and went for 96khz anyway and I don't hear any sound issues at all.
However, when trying the same with iMini, I still get the crackling sound.
So what's really going on here? Even if I'm only using DM1 and I don't get the crackling sound, is Cubasis running the inter-app audio at 96khz sample rate, or is it still being processed as 44.1khz?
(freezing the DM1 inter-app audio track produces a 96khz audio file, can I trust it?)
Would be great to get some clarification on these questions since those answers will dictate how I (and possibly others) work with inter-app audio apps.
iPad Air + iOS 7.1 + Presonus Audiobox 1818VSL