The Secret of Reliable MIDI Clock Sync on iOS

April 7, 2011

We, Finger, have been asked to share the “secret” of how we got MIDI sync to work on the iPad/iPhone. We decided to do so and make our knowledge available to the community.

In fact there is nothing magic behind. If one takes in consideration a few simple rules – that are not found or may be easily overseen in the documentation – implementation issues can be avoided, and rock solid timing can be achieved using iOS’s onboard Core MIDI framework:

Now that the secret is unveiled, we hope to see more apps with this “game-changing” feature soon!