Technical help - no spoilers

[Ningengirai]

Does anyone know in which file NWN stores its voices, specifically the 'spellcasting' stuff - you know, the things casters say while casting a spell, which sound cool but are probably pure gibberish. I'd like to extract just the spell sounds/commands and maybe, if possible, make mp3s from them. I did take a look at the toolset, but while I can assign the sounds to specific actions - like casting a spell - it doesn't tell me which file it draws them from.