Hello, I just got the Steam audio plugin to work with fmod and my UE5 project, and there is a big noticeable difference in the audio sim (Very cool). My problem/confusion is with how the Steam Audio Spatializer looks in fmod compared to the Steam Audio Documentation.
An FMOD Studio plug-in typically consists of two files:
A .dll file, which contains the actual workings of the plug-in: How it processes sound, what variables it has, what inputs it takes, and so on.
A .plugin.js file, which defines how the plug-in is presented in FMOD Studio: How controls are labelled, what order they’re presented in, how they’re grouped, whether enumerated properties should be presented as dials, number boxes, or drop-down menus, and so on.
Judging by your screenshots, something is wrong with that second file; perhaps it’s missing, or has the wrong name, or has been put in a different location to the .dll, or something similar. Whatever’s wrong with it, FMOD Studio is unable to detect it, and so is falling back on its default method of presenting a plug-in’s controls: It’s ordering them by type only, displaying nearly everything as a dial, and not presenting any custom graphical displays.
Looking at the Steam Audio documentation, the file you need is called src/phonon_fmod.plugin.js, and you should be able to find it in steamaudio_fmod.zip. Is this file missing from the .zip? If it is, you will have to obtain a copy of it from the developers of the plug-in.