As a pet project, I would like to use the original Portal to introduce people to gaming.
However, I live in Italy and Italians are culturally not very comfortable with subtitles (not to mention the fact that subtitle players need to be fast readers, as Italian is on average longer than the equivalent English).
So I wanted to change GLaDOS's voice with an Italian version.
However, no matter what I do, Portal does not seem to recognize altered audio files. I tried putting them in
%STEAMAPPS%\portal\portal\sound\vo\aperture_ai, and a few other variations on that structure, and double-checked that files were named exactly like in the GCF, but the game simply ignores them no matter what I try.
How can I fix this?
Is there a specific format for the WAV files? Is there anywhere I can check out for error messages?