Magic Voice anyone ?
Well check the great site that Stefan Uhlmann is creating (in german) about the Magic Voice Speech Module, you will find lots of info, files, sound clips, screenshots, scanned manual and other magazine articles that he is been collecting. Basically everything there exists on the net about it and related. Well done.
I'd like to point out a few things of the site like the fantastic 13 page scanned PDF article "Tune up your Commodore for the sounds of your life" of the RUN Magazine / April 1984 issue, and the strange p0rn track "Come" from the Magic Voice sampling CD. Intense.
Magic Voice Speech Module site