MIDI to CV converter iOS app

The Lounge General Discussion
1

Hey, I just would like to share that I have released my first iOS app — Rope.

Rope is a flexible MIDI to CV converter AUv3 extension wrapped into iOS app that lets you control your modular synth using any source of MIDI signal: another AU extension e.g. a sequencer or hardware MIDI interface or controller.

Rope doesn’t work standalone and in Garage Band. It requires “AUM” (AUv3 host app) to launch the Rope app and a DC‑coupled audio interface (for example, Expert Sleepers ES‑8) to output CV to your Eurorack modular system. Regular audio-interfaces are AC-coupled and can’t output CV signals.

With Rope, you can quickly select a source MIDI channel and map events as:

  • Gate
  • Pitch
  • Velocity
  • Pitch Bend
  • Aftertouch
  • CCs
    to 2 CV outputs (supported by AUM). By default it loads with Gate and Pitch.

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2

Sounds like a good idea :+1:t2:

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3

I wouldnt want to spend another 300 quid on hardware to make it work but the Blackbox is supposed to be DC coupled iirc, I wonder if it would be possible to rig it with that?

I also converted midi - CV with my Keystep but not CCs too which is what I’m after. I’d consider this app if it gave me CCs too with one of those devices. Viable?

4

Unfortunately it won’t work for you. 1010music Blackbox does NOT function as a USB audio interface when connected to an iOS device. So it won’t be supported by AUM. Keystep is not an audio interface.

5

Ta.

what is. the advantage of your app over a mutant brain or cv.ocd? both cost less than an ES‑8.

6

Just if one already has or plan to buy a DC coupled interface anyway, the app can expand its capabilities. Multiple functionalities. Isn’t it the whole idea of modular stuff?)
Of course if one need just midi-cv it makes not much sense to buy the app and an interface.
Maybe converting NRPN events might be an advantage if I‘ll add it.

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