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.
MIDI sync / clock from iOS to external gear, 2019
I've read all the threads I can find about syncing MIDI, and learned a ton! What a great resource this AB Forum is for a lurker like me as I dive into the world of iPad music. I'm coming from the world of hardware synths, keyboards, stomp boxes, and loopers.
Because many of the posts are more than a year old, and so much is changing so fast with all the rapid improvements in iOS music apps, I'm afraid I might be missing the best solution right now, June 2019. So I decided it's time to ask directly.
My specific scenario: I'm building a setup to use iOS loopers (Loopy, Quantilop, Ostinator) to loop and mix sounds I create externally with an acoustic instrument and a chain of Eventide stomp boxes (Pitchfactor, Modfactor, Timefactor). Because I play ambient with heavy delays, the stomp boxes need to be in sync with the loopers.
From what I've learned, I want the master time clock to emanate from the iPad, and make the stomp boxes the slaves. Simple clock, not transport commands. I'm using a iConnect Audio 4+ for I/O.
I have a basic working knowledge of AB3, AUM, and ApeMatrix. I don't have an iOS DAW; I send tracks via AUM > Audio4+ to Logic Pro on my laptop.
Question: what is the best source for the MIDI clock? AUM? AB3? ApeMatrix? Something else? Should I use Link (not clear yet exactly what that is) or some particular settings?
Although my immediate need is to send clock to the externals, I want to design a setup that will be rock solid for sequencing and sound production within the iPad too.
If you're curious, my instrument is an orchestral clarinet with a pickup. From the pickup on, the effects and everything else works exactly as it would for a guitar. Listen here: ThinAirX.com
Besides seeking help for my specific situation, I'm hoping this will open into a discussion of the current state of MIDI sync taking into account all the recent upgrades and newcomers.