Arturia KeyStep 37 MIDI Keyboard Controller and Sequencer - Manual (Page 72)

8.1.2. CC messages and MIDI
When in Control Mode the knobs of the KeyStep 37 will send CC messages over MIDI. A
knob is assigned to a specific MIDI channel. Knob 1 could be made to transmit on MIDI
channel 1 and knob 2 on channel 5. Each message has Data encoded in it that determines
which parameter on which MIDI channel will change.
To control parameters on these external synths you'll have to tell the KeyStep 37 with CC#
codes it must send and on which MIDI channels. We'll cover this in more detail later in this
chapter.
8.1.3. Monitoring CC#'s and their values
Whenever you turn a knob, the value it transmits will be displayed in the LED screen, but
there is no way of knowing what the current control number is associated with this knob.
CC data is more difficult to monitor than MIDI notes. Fortunately, there is an option in the
MCC that helps you understand what is going on:
• Open MCC
• Select the KeyStep 37 in the device window if it is not already selected
• In the MCC menu select the view submenu and click on 'MIDI console'
A window will appear below the configurations settings. If one the CC# banks is selected
and your turn a knob, the values transmitted by the knob will appear in the MIDI console
window. A line may read like
In: B0 4A 3A | Ch 1 CC 74 - Brightness
The second half of the info line which reads 'Ch 1 CC 74 - Brightness' in the above example
displays the MIDI channel (1), the CC number (74) and the default parameter that this CC
number controls (Brightness)
The last digit in the first column (3A) is the actual value being transmitted in Hexadecimal
notation.
67 Arturia - User Manual KeyStep 37 - Controlling external synths