I tried to search around here on the site, didn't find anything, but if you know this exists in a good explanation how to, please link

When I'm recording my own voice, I use sometimes like Audacity and try to use my voice to get different kind of voices. One thing i haven't been successful in is to make the Voice kinda sound like its a bad mic, not to bad, not as clear I have and you sometimes here on ventrilo talks, more studding, noisily, like in the Freespace 2 campaigns.
I hope you know what I mean, cuz I haven't find a way to get it right.
PS: A hint, ehm. If you have the Speech on the controlpanel, Microsoft Sam has kinda to much of that kind of voice, and its a robotvoice. But if you have downloaded some new ones, like Microsoft Mike, his "recording" sound is very good. Id like that in my voice recording ^^