It would depend on exactly HOW good a voice impersonator you are, and how well you (or someone else) would be able to do the voice effects. If you don't realise that it is another voice if you don't know about it, I'm all for it. As a side remark, the imho most important missing speech, the one about the Mycon homeworld, is done by Paul Reiche III himself, so we could try to get him to do this one.
I don't have an exact list myself, although I've seen some (probably incomplete) list somewhere. I can't find it now though.
Logged
“When Juffo-Wup is complete when at last there is no Void, no Non when the Creators return then we can finally rest.”
Well, naturally, if I were to do it, it would involve a great deal of practicing. Given how many races there are with different styles of speaking, it would be quite abit of work. And doing the voices is only 2/3rds of what would need to be done, as there were distortion effects used for the recordings that would have to be matched too. That last part might be the clincher, as I'm no audio engineer.
If someone can provide a transcript of some of the missing dialog, I'll do a few test runs and see how close I can get. Then, I guess, we'll go from there if the results are satisfactory.
this is a mod I made for version 0.40 which allows to select the original PC subtitles via command line argument. I used the script from this site: http://www.sa-matra.net/quotes/index.html
The download includes a detailed list of the changes. I guess it will be useful for you to experiment