Technical information

Knobs

It is easy to control FabFilter Pro-Q 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:

1. 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.

2. 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.

3. 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.)

4. Text entry mode

Double-click a knob to enter an exact value 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.

Pro Tools note: the AAX and RTAS/AS 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), reset to default (Alt+click) and linked changes (Shift+drag).

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, and also 'A4' for 440 Hz, or even strings like 'C#3+13'. 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).

Sometimes, knobs in our plug-in interfaces are linked: these be adjusted simultaneously by holding down the Alt key (Shift

key in Pro Tools) 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: Display and workflow