I have the pc version and i suspect that two filetypes named mus and sam, connects well. When i used cheat engine on the pc version and found a cheat capable of frezzing the song speed. I was amazed that the music was not streamed. I could change the pitch of various cheat addresses. The sample pitch would be changed like crazy without altering the tempo. I found the music freezing code by searching 1 while in gameplay esc menu. And searching 0 while outside ingame esc menu.
Made in Cheat Engine v5.6.1 Here is the cheat table for Soul Reaver 2 v1.1 http://www.mediafire.com/?2qbu8vqd9kzcxiw