: qsound_hle refers to "High-Level Emulation." While older versions of MAME used different methods, the current requirement for many Capcom Play System 2 (CPS2) games is this specific HLE device file.
In recent builds (starting around MAME 0.201), the QSound files were separated into their own "device" sets. The New Requirement: Most CPS2 games now look for a specific zip file named qsound_hle.zip instead of the older qsound.zip How to Fix the Error If your emulator is complaining that dl-1425.bin qsound_hle is missing, try these steps: 1. The Quick Rename Hack If you already have a qsound.zip file in your ROMs folder and it contains dl-1425.bin , the easiest fix is often to simply copy and rename it qsound.zip Make a copy of it. Rename the copy to qsound_hle.zip Ensure both files remain in your 2. Update Your Device Set dl1425bin qsoundhle new
The original dl1425.bin dump came from a faulty revision of the arcade PCB. Over 20 years, the ROM chip degraded slightly. While the "old" HLÉ core could read it, it compensated incorrectly, leading to phase cancellation in the low-end. : qsound_hle refers to "High-Level Emulation
Newer versions use this code to simulate the actual sound chip's behavior rather than using "shortcuts" or older, less accurate files. The Quick Rename Hack If you already have a qsound