I just realized this today, that you can change the language in steam settings. So I did, and started half-life.
All the sounds are different (french) but what I found really odd was this:
The announcement system is completely different! It is no-longer a robotic voice speaking pre-recorded phrases, it's a lot of different human voices, speaking complete sentences!
Heres some samples:
http://rapidshare.com/files/40582567/c1a0_10.wav.html
C1a0_10.wav
http://rapidshare.com/files/40582848/ctr3.wav.html
Ctr3.wav
http://rapidshare.com/files/40582994/power_off.wav.html
Power_off.wav
I don't think it has the same charm as that robotic thing.
Now for sentences.txt!
The gman sounds weird too. Not scary at all, just a dull business man.
The suit has a robotic filter on it which ruins everything
The sounds are too long and don't match up with the scripted sequences sometimes.
Barney sounds the same as the scientists.
Scientists sound the same as the Gman
I think they only had 2 voice actors for this...