That error message often points to a specific file: .
Developed by Archer Communications (and later licensed by Capcom), QSound was a 3D audio positional technology. Unlike standard stereo, QSound could trick the human ear into hearing sounds coming from behind the player or moving in a 360-degree arc using only two speakers. In an arcade cabinet, this created an immersive bubble of sound. Mame Qsound-hle.zip
Enter .