If your ROM zip contained the "wrong" QSound revision, the HLE engine would:
Place the zipped archive into your emulator's designated BIOS folder or directly inside the ROMs directory alongside your CPS2 game files (depending on whether you are using RetroArch or a standalone version of FinalBurn Neo). qsound hle zip patched
What are you playing on (e.g., PC, Steam Deck, Android handheld)? If your ROM zip contained the "wrong" QSound