Knobs
It is easy to control FabFilter Twin 2's parameters with the large round knobs.
They will light up when you move the mouse cursor around to indicate that you
can adjust them. The moment you move the mouse cursor over a knob, a parameter
value display will pop up, which shows the name and the current value of the
parameter.

All knobs support four ways of control:
- Vertical mode
Click on the center area of a knob and drag up or down to rotate it. The knob
reacts to the speed with which you are dragging, so if you move the mouse slowly,
you make precise adjustments.
- Rotate mode
Grab the arrow of the knob and drag it around. By moving the mouse cursor further
away from the knob while dragging it, you can make precise adjustments.
- Mouse wheel mode
Perhaps the easiest way to make adjustments is by using the mouse wheel when you
hover over a knob. This mode works for all the knobs and possible panning rings.
(On Windows, you might need to click in the plug-in interface first to make sure
it is the active window.)
- Text entry mode
Double-click on a knob to enter the value exactly using the keyboard.
Tips
- To reset a knob to its default position, hold down the Ctrl key (Windows)
or Command key (Mac OS X) and click the knob once.
- To fine-tune a value when using vertical drag mode or the mouse wheel, hold
down the Shift key while dragging or moving the mouse wheel.
- In text entry mode, there are several handy shortcuts. With frequency values, you
can type e.g. '1k' to set the value to 1000 Hz. With dB values, you can type e.g.
'2x' to get +6 dB (the value that corresponds to two times louder). With all values,
you can also type a percentage (e.g. '50%' will put a knob exactly in the middle
position).
- Pro Tools note: the RTAS/AS and AAX versions of our plug-ins implement the default
Pro Tools keyboard shortcuts for fine tune (Ctrl+drag on Windows,
Command+drag on Mac OS X) and reset to default (Alt+click).
- Sometimes, knobs in our plug-in interfaces are linked: these be adjusted simultaneously by holding down
the Alt key while dragging on one of them. For example, an output level and input level setting of a plug-in could
be adjusted simultaneously (in the opposite direction) this way.

Next: Component buttons
See Also
Support