ARTURIA – Matrix-12 V – USER MANUAL
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3.2.8.2
Min / Max value sliders
There are also minimum and maximum value sliders that you can use to restrict the
parameter change range to something other than 0%-100%. For example, you might
want the filter cut-off be controllable via hardware from 30% to 90%. If you made
this setting (Min set to 0.30 and Max set to 0.90) your physical knob would be unable
to alter the volume lower than 30% or higher than 90%, no matter how far you turned
it. This is very useful for making sure you can’t accidentally make the sound too quiet
or too loud when performing.
In the case of switches which only have two positions (on or off), those would
normally be assigned to buttons on your controller. But it is possible to toggle those
with a fader or other control if you like.
3.2.8.3
Relative control option
The final option in this window is a button labelled “Is Relative”. It is optimized for use
with a specific type of control: one which sends only a few values to indicate the
direction and speed at which a knob is turning, as opposed to sending a full range
of values in a linear fashion (0-127, for example).
To be specific, a “relative” knob will send values 61-63 when turned in a negative
direction and values 65-67 when turned in a positive direction. The turn speed
determines the parameter response. Refer to the documentation of your hardware
controller to see if it has this capability. If so, be sure to switch this parameter on
when setting up its MIDI assignments.
When configured this way, movements of the physical control (usually a knob) will
change the software parameter by starting at its current setting, rather than being
an “absolute” control and snapping it to some other value as soon as you start to
move it.
This can be a great feature when controlling things like volume, filter, or effect
controls, since you won’t usually want them to jump massively out of their current
setting as soon as you start to modify them.
3.2.8.4
Reserved MIDI CC numbers
Certain MIDI Continuous Controller (MIDI CC) numbers are reserved and cannot be
reassigned to other controls. These are:
PitchBend
AfterTouch
Ctrl Mod Wheel (CC #1)
Ctrl Sustain On/Off (CC #64)
Ctrl Expression (CC #11)
Ctrl All Notes Off (CC #123)
