Quick start

The installer will copy the FabFilter Pro-C plug-in into the common VST, VST 3, AU (OS X only) and Pro Tools plug-in folders on your computer. On Mac OS X, the global plug-in folders in /Library/Audio/Plug-Ins are used.

In most cases, your host will then recognize the plugin automatically. However, if the instructions below do not work, see Manual installation instead.

Cubase
Choose an empty insert slot, for example in the Mixer, and select FabFilter Pro-C from the menu that appears. To use the MIDI features in Pro-C, create a new MIDI track and set its output to the Pro-C instance you have just created. (The VST 3 version of Pro-C can be found in the Dynamics section.)
Logic Pro
Choose an empty insert slot on one of your audio tracks, instrument tracks or buses and select FabFilter Pro-C from the pop-up menu. You will find FabFilter Pro-C in the Audio Units -> FabFilter section (named FF Pro-C).
Ableton Live
In Session view, select the track you would like to place FabFilter Pro-C on, for example by clicking the track name. At the left top of Ableton Live's interface, click on the Plug-in Device Browser icon (third icon from the top). From the plug-ins list, double-click FabFilter/FabFilter Pro-C, or drag it onto the track.
Pro Tools
Choose an empty insert slot on one of your audio tracks, instrument tracks or buses and select FabFilter Pro-C from the pop-up menu in the Dynamics section.

To begin, make sure attack and release are both zero. Put the ratio in a gentle 4:1 setting and bring down the threshold to make compression audible. Play with those parameters until you have the desired effect. Have fun!

Next: FabFilter Pro-C overview