Step 1: Celemony’s Melodyne Editor is an incredibly powerful piece of pitch correction software that you can use to create an array of unusual effects, including those of the sort you’ll hear on Skrillex’s With You Friends (Long Drive), Scary Monsters and Nice Sprites, and First Of The Year (Equinox). Download the Melodyne editor demo from the Celemony website.
Next, download Acappella.wav (right-click to download). Launch Melodyne Editor and drag Acapella.wav into it. The software will analyse the vocal’s pitch.