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 StoreAudiobus is the app that makes the rest of your setup better.
Bias
I have an issue with the app bias. I use a personus 22vls and an iPad 4. This interface needs a USB hub and has worked very well for 8 months or so with my apps and audiobus. I purchased the bias amp app, and now I cannot get a wet signal when I turn the mix knob to the right. Cannot hear what I am recording with effect. I had the iPad replaced and the situation remains the same. The personus works fine with my G5 apple, but not with this iPad setup any more. I can hook up a condenser mic and I can barely hear the signal dry or wet, but again works fine with the G5. I replaced the powered hub with a new one, same thing. Anyone had similar experience?