Stand-Alone Midi Control - RME Audio Fireface UCX User Manual

Examples for sending MIDI strings:
- Set input 1 to 0 dB: B0 66 68
- Set input 17 to maximum attenuation: B1 66 0
- Set playback 1 to maximum: B4 66 7F
- Set Output 16 to 0 dB: B8 75 68
Note: Sending MIDI strings requires to use programmer's logic for the MIDI channel, starting
with 0 for channel 1 and ending with 15 for channel 16.
Further functions:
- Trim Gains On: BC 66 xx (BC = MIDI channel 13, xx = any value)
- Trim Gains Off: BC 66 xx or select a submix
Select submix (fader) in third row:
- channel 1/2: BC 68/69 xx
- channel 3/4: BC 6A/6B xx
etc.

30.6 Stand-Alone MIDI Control

When not connected to a computer, the Fireface UCX can be controlled directly via MIDI.
Stand-alone MIDI is controlled in TotalMix FX, Options / Enable MIDI Control. The current state
of this option is stored in the Setups and with the current state, and used when going offline.
Note: When not needed the stand-alone MIDI operation should not be active, as the unit will
react on MIDI notes after power-on, and will also send MIDI notes.
Control is performed via both the Mackie Control protocol and some standard MIDI functions
(see below). In stand-alone mode not all functions known from TotalMix are available, because
some of them aren't hardware, but software routines. Functions like Talkback, Mono, Solo, rela-
tive ganging of the faders, Monitor Main and Monitor Phones are realized by complex software
code, therefore not available in stand-alone MIDI control operation.
Still many functions, and especially the most important functions to control the Fireface UCX,
are implemented in hardware, thus available also in stand-alone mode:
• All faders and pans of the first and third row
• Mute of the input signal per channel
• Ganging via 'Select'
• Choice of the routing destination, i.e. the current submix
• Sending of LED and display data to the MIDI controller
The second row (software playback) is skipped. The Fireface UCX sends display data as brief
information, enabling an easy navigation through lines and rows. Other data like PAN and mis-
cellaneous status LEDs are supported as well.
In stand-alone mode the unit always operates in View Submix mode. Only this way the routing
destination can be changed, and several mixdowns/submixes can be set up quickly and easily.
If the current TotalMix setup is transferred into the Fireface via 'Flash current mixer state', the
currently selected submix output is also pre-configured in the hardware for stand-alone MIDI
remote operation.
User's Guide Fireface UCX © RME
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