Crisis Core Final Fantasy VII

[CloudXIV]

Can anyone tell me how to get the voice-overs working? Everything's fine, the opening movie, the sound effects, the music, but no voices. Is there a way to fix that? I'm using the latest windows version (1.01) and I tried all the audio options I could find.

Edit: Sorry, I'm a complete moron, I've been playing the undub version and it seems the cut-scene where Zack pick ups the phone right after the opening FMV wasn't voiced in the Japanese version (it was in the US/EU). Hopefully everything else works fine.