Hi! This is my first post in this forum, so welcome everybody
In OpenXcom we can set hires music by downloading one of the packs from "Downloads" > "Extras" > "Custom Music". My suggestion is to allow to use hires sounds effects in game. If you are playing Doom on ZDoom/GZDoom maybe you know what I'm trying to say
PS My english is not good, because I'm from Poland, so don't worry