someone

Hello, World! A while ago, I was working on a little project that would replace T3's audio with a new custom one. I downloaded my custom audio files, and then gave each the names and extensions of the original ones before taking them to T3's audio file. I did that and tested it out myself, but I got nothing, absolute silence-meaning that the custom files obviously didn't work. So I was wondering if there were mistakes that I wasn't aware of, or if there are any other means by which I could replace the audio files? Note: It's for KOTOR 1.