Blitz3D sound is definitely FMod driven. As an experiment I took a B3DSDK app, an example, and ran it after temporarily removing fmod.dll from my system32 dir. and it gave me the 'ol you can't run this 'cause you don't have the whatever.dll message. Try it, I got consistent results with all B3D and B3DSDK apps on my machine. And I used the Framework command to make sure pub.mod/fmod.mod didn't get imported.
I'm sure it uses FMod. Fortunately for me I already own an indie/shareware license for FMod, but if you're just going to use it in one game (good enough a license for starters) it's only a hundred US dollars, very reasonable for such a good library.
I'm sure it uses FMod. Fortunately for me I already own an indie/shareware license for FMod, but if you're just going to use it in one game (good enough a license for starters) it's only a hundred US dollars, very reasonable for such a good library.