User Manual

MODULATION

Iris 2 | MIDI EXPRESSION CONTROLLERS Page 57

MIDI EXPRESSION CONTROLLERS

Drag and Drop

one of these icons

to assign a MIDI

controller to a

Modulation Knob or

Slider

You can assign MIDI CC to nearly all of the parameters in Iris 2 using MIDI Assign.

However, expression controllers like Key Tracking, Velocity, and Aftertouch can’t easily

be assigned using MIDI Assign, so they’re included in the modulation system for easy

attachment and range setting. We’ve also included Mod Wheel as a modulation source,

so that it can be assigned just as easily as other modulators, and save with patches (Mod

Wheel can also be assigned through MIDI Assign, but doesn’t save with patches).

To assign a MIDI Expression Controller, identify the parameters you would like to control,

and either right-click on one of each parameter’s Modulation Input, or drag and drop the

desired Controller Button to a Modulation Input. The eective range is automatically set to

50%, and is indicated with a green line around the parameter knob. To adjust the eective

range of the Controller, click and drag up or down on the Assignment Slot to set the range

across which the Controller will adjust. (See Adjusting Modulation Range).

Key Tracking follows the notes played and outputs a higher value for higher notes and a

lower value for lower notes. This is most often attached to Filter Cuto to raise the cuto

frequency as higher notes are played. Because this is so common, we’ve added a default

Key Tracking connection to the Filter Cuto with its own amount knob, so you can easily

dial in your desired amount of Key Tracking eect and still have three Modulation Inputs

available for other modulation eects.

Velocity reacts to how hard or soft a note is played, so that a harder articulation outputs

a higher value and a soft articulation outputs a lower value. This is most often attached to

amplitude so that playing softly sounds quieter, and playing hard sounds louder. Like Key

Tracking, this is another use case that is so common that we’ve added a default Velocity

connection to Master Amplitude with its own amount knob, so you can quickly and easily

create dynamic, playable sounds.