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.
Favorite, small, reasonably priced, iPad interface supporting guitar, mic & headphones?
My apologies for the shopworn question and I’ll provide the interfaces I already own as a point of reference, which I consider perhaps either too big and/or too old (rather like yours truly) to suit the portability advantages of an iPad:
Scarlett 2i4 (Gen 1)
My iRig Pro is closest to my expectations, except it’s the older one rated at 24 bit, and it does not have a headphone amp, and thus I have to rely on the headphone amp in the iPad, which is nothing to write home about.
If I do get another interface, I do not mind if it needs batteries, as I am aware of the iPad’s limitations to power peripherals. If the new interface can only use an AC adapter, I guess that would be OK, but then it’s getting pretty close to my Scarlett 2i4 (Gen 1) in terms of operational requirements (if not actual size).
I'm most ikely to plug in an electric guitar, run a AKG C410 Headset Condenser Microphone, and headphones, with the iPad, and then wander around the living room pestering the dog.