Smule’s Sonix Vox is a $.99 iPhone app that lets you do real-time audio processing. Sonic Vox shifts and contorts your voice while you are talking, letting you sound like Darth Vader or a chipmunk.

Features:

• Alter your voice with a swipe of your finger. Want to cross over to the Dark Side? Slide your finger to the left. Now say it. You know you want to. “Luke, I am your…”
• Or maybe you are feeling conflicted about having lost a “preciousssss” ring? Move your finger back and forth horizontally and go ahead, rant on
• Transform your voice even more. Simply swipe your finger up and down and hear what happens, hear what happens…
• Use it like a phone, with headphones, through an amplifier, or over Skype

Looks dumb but fun!