Need to know how to do an intercomm effect.

So I have voice audio that calls for the voice to sound like it’s coming out of an intercomm, namely a spaceship intercomm like on star trek. I’ve tryed some things but the results are not very satisfactory…

It would have helped if you could describe in more detail what you want it to sound like, but I’ll take a few guesses.

A spaceship intercom, eh? The sounds that come to mind are, smooth voice, wide stereo reverb, and high quality.

The smooth voice and high quality will need to come from your voice actor and your recording setup (there is no way around this one unless you don’t care about one or both qualities).

For the reverb, you can use Gverb:
http://audacityteam.org/wiki/index.php?title=GVerb

There’s a list of settings there, you can try starting with the Nice Hall settings.