Built-in Audio Unit Effects

Underlying GarageBand’s simple interface is a host of complex functionality and features that offer some serious power in modifying your audio inputs. Many of these features are inherited from FinalCut Pro/Soundtrack, or from Apple's other audio products such as the eMagic line, including Logic. As users become more comfortable with GarageBand and want to stretch their recordings further and further, mastering all of the powerful features of the program becomes a desirable goal. In this tutorial, we’ll take you deep into the bowels of GarageBand’s high-end Audio Unit filters and explain how they can change the sound of your recordings.

via MacJams.com – Article: GarageBand Tutorial: Built-in Audio Unit Effects.