Difficult to do anything with this kind of stuff. If they had programmed it for even one stereo file per bell it would have worked better, but we got one mono WAV file with software to emulate stereo and increase/decrease volume to emulate speeds. Trainz (train simulator) for example has WAV files for throttle up, throttle down, idle, and steady, 3 different WAV files for each of 8 throttle notches - AND you can set any locomotive up to use a DIFFERENT engine sound, I got six repaints of an Alco RS-11 with different amounts of rust and flaking paint, I can use six different folders with smooth sounds for new locos, rougher for older ones, and coughing sputtering backfiring for the really old ones. I can even add smoke and exhaust flames that are unique to each skin.
I really wish I could do stuff like that for SH4, but the main program is just too limited.