qsound_hle.zip is a vital "high-level emulation" (HLE) audio device ROM used by to simulate the sound chips found in many Capcom CPS1, CPS1.5, and CPS2 arcade systems. Core Function & Purpose
If you see an error like "dl-1425.bin NOT FOUND," it means MAME cannot find this zip file in your directory. LaunchBox Community Forums Quick Fixes & Troubleshooting If you are missing qsoundhle.zip but have an older qsound.zip MAME 0.201 and QSound HLE - LaunchBox Community Forums 1 Sept 2018 — qsoundhlezip mame
It sounds like you're looking for an interesting blog post covering , HLE (High-Level Emulation), ZIP (as in MAME ROM sets), and MAME together. qsound_hle