Hi,

I'd like to share some tips to use faders and controllers of MIDI keyboards without having MIDI notes interactions with Totalmix FX under OSX.

The idea is to use the faders/panpot/buttons of a keyboard which include MIDI Controllers (mine is a CME UF80).
For some reason I ignore, RME chooses to use MIDI notes to send button messages in Totalmix FX instead of CC. It is not an issue with standard MIDI Surface Controllers but is a pain with keyboard.

To do such a thing I used a little freeware/donationware called Midi Pipe on OSX. I think the equivalent for PC is MIDI OX (and with eventually MIDI Yoke to create virtual internal MIDI ports)

MIDI pipe already auto-creates 1 pair of virtual internal MIDI In/Out port so you don't need to activate OS X IAC Bus in Audio MIDI Setup.

I created 2 parallel pipes :

Pipe 1/ (optional)
to add MIDI thru capabilities to the FF UFX (MIDI In2-> MIDIOut1+2 or whatever you like/need according to your setup)
(in MIDI Pipe) Keyboard MIDI port (UFX port 2) -> UFX out port 1 (thru enabled) -> UFX out port 2 (thru enabled)

Pipe 2/
- to block every MIDI messages send to Totalmix FX except Control Changes
- to convert CC messages->midi notes messages, to be able to use button according to RME MIDI implementation. Of course, I first programmed UF80 buttons with proper CC commands.

(in MIDI Pipe) Keyboard MIDI port -> MidiPipe processes (Messages Filter+6 Messages Factory) -> MidiPipe out port 1
(in Totalmix) in menu Options:
- MIDI Control Enabled
- Settings (F3) : Midi Input=MidiPipe out port 1 / Midi Ouput=None

If you have any questions (MIDI pipe settings), post here. You can also download MIDI Monitor to help you seeing what's you're doing with MIDI.

PS (@RME Suport) : it would be nice to have a complete documentation of MIDI implementation of Totalmix FX including new features introduced with recent firmwares.