Launch MAME and press F5 (Audit All Games). MAME will check all your ROMs and BIOS files. If qsound-hle.zip is valid, the red "missing" icon for CPS-1/2 games will turn green.
Qsound-hle.zip is a specific component within MAME that deals with audio emulation. Qsound is a sound board developed by Yamaha, used in numerous arcade machines during the late 1980s and early 1990s. This sound board was renowned for its high-quality audio capabilities, featuring multiple channels of ADPCM (Adaptive Differential Pulse Code Modulation) audio. Mame Qsound-hle.zip
: "HLE" stands for High-Level Emulation . It mimics the behavior of the QSound chip rather than simulating its internal circuitry (Low-Level Emulation or LLE). Launch MAME and press F5 (Audit All Games)