Rogue Spear speech/sound question

[CptTarpals]

Does anyone know how to change the speech within the game? I'm not talking about the music that is unpacked and injected but the speech such as "alpha go" and so on. I looked on the cd and don't really have an idea of which file it is in but i'm sure it's incorporated in a file not by itself. Is it possible to extract/view these files? I just would like to get some cool sounds in the game instead of these boring ones. Any ideas?