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.
Latency optimization questions
I am largely ignorant about minimizing latency on the iPad or anywhere really. I have long either recorded live into a computer and used direct monitoring or been able to have it easily down to a few ms that i cant perceive simply by setting a low buffer setting.
I’ll describe my specific setup below but I am also happy to hear your general tips on latency. I searched threads here but the answers were more about audio v audio, and my issue is more midi and audio. Beyond setting a low sample rate, I have little direction.
My specific issue is getting this setup all working optimally:
Connected to iPad via usb hub:
*Moog Sirin via iConnectivity Mio, (easier that way to hook up to laptop for deeper editing v. Usb)
*Minilogue XD, and
With a buffer setting of 256, problem comes when I try to use the Akai arpeggiator on the Sirin. There is a bit of delay, not horrible but it bugs me.
So to do that, I am sending clock out to the Akai, midi notes back into the iPad, thru Modstep, to the Sirin.
In contrast, sending clock to the Minilogue, playing there, audio coming from it itself of course, seems to not be problematic.
So I guess I should try just connecting the Akai directly to the Sirin, but I want to use the Akai to also play iPad synths.
Is there any reason to think a combined audio and midi interface would lower latency versus my audio interface and separate usb to 5 pin Mio adapter? E.g Focusrite 2i4? Are there round-trip issues or it is all parallel regardless?
Would a usb3 interface be faster through a usb3 hub? E.g.