Broken sound effects?

I've used this decompiler for this game from 2006. I have then tried to recompile it using different Blitz3D versions (mainly 1.118) and it seems like everything works perfectly EXCEPT for the sound effects (some looping effects are restarting the loop too early, some sounds are too loud, some are too quiet, issues like that).

Is this a common issue? Maybe FMOD version mismatch or something?