Audiobus: Use your music apps together.
What is Audiobus? — Audiobus is an award-winning music app for iPhone and iPad which lets you use your other music apps together. Chain effects on your favourite synth, run the output of apps or Audio Units into an app like GarageBand or Loopy, or select a different audio interface output for each app. Route MIDI between apps — drive a synth from a MIDI sequencer, or add an arpeggiator to your MIDI keyboard — or sync with your external MIDI gear. And control your entire setup from a MIDI controller.Download on the App Store
Audiobus is the app that makes the rest of your setup better.
sorry once again. looking for final answer: do i need an audio interface !?
got an ipad pro 2018 and plenty of audio interfaces. I like them and obviously i use them to connect my hardware synths to the ipad for audio & midi.
I use them as well when producing in aum and ios soft synths only - principally because it gives me that sensation of "professionality". But is there ANY - i mean even the slightest - advantage in doing so ? Quality- or latency wise ?
personally i'm not able to hear any difference over using the apple usb-c to headphone adapter. thanks !