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.
Two inputs (mic/guitar): send them individually or combined to looping app, and change it using MIDI
I have an interface with two inputs: to one I connect my guitar, to the other my microphone.
From within my looping app (Group the Loop, GTL, https://grouptheloop.com/) I can select whether I want to record the first channel (guitar), or the second (voice), or both (guitar and mic).
I'm now looking for a way to:
1) Record one input (e.g. guitar) in GTL while still sending the other input (e.g. voice) to the main out. This way I can record the guitar while singing verse 1, then simply repeat the recorded guitar in GTL for verse 2 while continuing to sing.
2) Change this on the fly while looping. So I want to be able to change which inputs are sent to GTL (for recording them). This way I can choose whether I want to record only guitar, only my voice, or both. The other input should also always be sent to the main out.
I have an iRig BlueBoard MIDI foot controller which should be useful here. But I played around quite a lot already andI wasn't really able to come up with a solution. First I tried to just assign different MIDI commands to the input selection within GTL, but in GTL I only ever hear what is recorded, so e.g. I can't hear my voice while only recording my guitar.
I suppose that I somehow need to set up Audiobus so it sends only the input that I want to record to GTL, and that I can somehow change that using MIDI. But I couldn't find a solution. Any ideas?
If it helps: I also own AUM.