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We’ve already shown you how to turn your Mac desktop into the LCARS interface and now we’re back to add a soundtrack to those delicious, deep-dish visuals.

You will need three things: Unsanity’s 1.) Application Enhancer Version 2.5 (free) and 2.) Xounds Version 2.5 (demo), as well as the appropriate sound sets (see below).

Where to find, how to convert

With Xounds installed you can assign a sound to just about any action on your Mac, but there’s one catch—OS X only does .aiff. So, to use the LCARS sounds, for example, you will need to convert the .wav files into .aiff, which you can do using QuickTime Pro ($30 if you don’t know better) or Freeverse’s Sound Studio (demo). In either application, simply open the .wav and then choose “Save As”—pretty straight forward.

Here a few places to get sound sets which will need to be converted, except of the Xsoundsets of course:

• Xoundsets (Unsanity)
• Star Trek Sounds (Media College)
• LCARS sounds (LCARS.com)
• Star Trek Sounds (Franks Radio)

Last but far, far from least, don’t forget about iLCARS ($0.99) — LCARS on the iPhone: The tricorder comes to life.