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.
Effectrix Update - MIDI Sync issue
Just updated Effectrix... Anyone else experiencing weirdness where Effectrix needs a couple moments to lock in on the midi sync timing or did I just never notice this before? Sync'd to Loopy, you can watch the BPM on Effectrix bounce to a couple different tempos before finally locking in. This happens every time I press play on loopy session.
It's really noticable when you have a delay on at the beginning of a sequence because the changing tempo screws with the delay timing and you get the pitchy artifacts.