Here's a fun little application to get your crowd pumped up. The same code freak who created the popular Countdown Creator 2.1, Nevan Hooker, has come up with another handy tool:
Perfect for use with live events, games, sermon illustrations, youth groups, children’s ministry, and anywhere else where you want to have some fun with the crowd, this little flash application converts the sound captured by a onboard microphone or an external computer microphone into a visual display.
Since it's flash, it works on all Windows and Mac computers. Better yet, it's only $25.
Learn more and watch the preview here: