Yesterday we posted that Waves Audio is giving away a FREE plugin. Today Waves announced OneKnob Pumper is the free plugin.

Pumper gets you an instant ducking effect similar to side chain compression without need for any side chaining. This easy-to-use plugin is ideal for making individual tracks pump with the beat or you can set it on a group of tracks for a cool pumping effect.

Click here to get OneKnob Pumper for FREE!