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.
Audio Interface Question - Designing a Rig
Hey gang. Long time lurker, first time poster. I'm building an iOS keyboard rig being the bass player in an original soul band. I used to use Mainstage back in the day when I would play left-hand bass for a blues band, but I haven't had that rig in a while, and I want to build another rig to have some more flexibility and to add different sounds for our band. Here's ultimately what I would like my setup to look like.
A 61 Key Controller (pretty set on the Novation Impulse 61, as I like the action on the keys), into my iPad Pro via a powered USB hub. An app each for Hammond, Rhodes, Piano, Synth, Brass and Bass (more on that in a minute). Using Audiobus to route sounds.
Now the tricky part. I'd like to be able to split patches which I've seen is fairly easy to do across several of the Midi apps. But I'd like to set up a left hand bass patch, and route it out of the L channel of my audio interface so that I can send bass sounds to my bass amp, and then route all other sounds to the R output that can be sent to the PA. I would send the bass/left output to an ABY pedal so that I could easily switch between electric bass and left-hand/key bass. This seems like it should be a setting issue, but I can't find in any of the apps a way to route a specific sound to one output of my interface or another. Is that a standard feature?
With all that being said, what audio interface should I be looking at? I'd ideally like to keep it $200 or under. I was looking at the iRig Pro Duo since it has Midi In/Out, along with the other I/O in a very small form factor, but is there another interface I should consider?