User Guide

Learn the CC Jack Assignment (Synth 1)
If using Single Mode , you can also assign a function to the MIDI 1U’s CC [F] jack using the LEARN
button. Specifically:
1. If the LEARN [1] button is not lit, press it once.
The LEARN button lights solid blue , indicating the MIDI 1U is in LEARN CC+CH mode, and is
awaiting a MIDI message.
In the following steps you will be learning the syn 1 MIDI Channel and MIDI CC# you want
assigned to the CC [F] jack, plus that jack’s CV Polarity.
2. Press the CLK ÷ [2] button to toggle between unipolar (0-5V) or bipolar (±5V) operation for the
CC [F] jack. Specifically.
Unipolar : GREEN button: If the CLK ÷ button is solid green when learning the CC jack
assignment, then the CC jack’s output voltage will be set to unipolar mode.
(i.e. CC Values of 0-127 = 0V - 5V).
Bipolar : RED / GREEN button: If the CLK ÷ button is flashing red / green when learning
the CC jack assignment, then the CC jack’s output voltage will be bipolar (i.e.
CC Value of 64 = 0V; CC Value of 0 = -5V; CC Value of 127 = +5V).
3. Send the MIDI 1U a MIDI message using the MIDI CC number that you want assigned to the
MIDI 1U’s CC [F] jack.
MIDI 1U will automatically assign its CC [F] jack to the CC# sent, while simultaneously setting
the synth 1 MIDI channel to match. It will assign the desired polarity to that jack, and extinguish
the LEARN button.
For example, if you turn an Expression (CC 11) knob on a MIDI controller assigned to Channel 2,
then MIDI 1U synth 1 will automatically assign itself to respond to CH 2, and it will configure its
CC out jack to transmit a control voltage based on Expression (CC 11) data from your MIDI source.
Additionally, MIDI 1U will automatically save all learned settings after 2 seconds of MIDI activity
( CLK ÷ button flashes green ), ensuring it returns to exactly the same state after a power cycle.
MIDI 1U System Manual 19