Nobody knows

Pulp-O-Mizer.

Sonanaut.

 Polymer jerboa.

In theory, you can use stereo or mono files for "3D" sounds in FMOD. But there's a tool to widen the surround field. Honestly, I'm not sure how it works. It's the 3D speaker spread thingy.

PRS.https://www.prsformusic.com/