Supported Platforms:
In newer versions of MAME, Capcom games look for specific device ROMs to function. If you try to run games like Street Fighter Alpha Marvel vs. Capcom and see an error about a missing dl-1425.bin qsound_hle
Modern versions of MAME (0.200 and above) have quietly improved audio emulation. Here is a quick comparison to help you decide:
The Qsound board was renowned for its ability to produce high-quality audio in arcade games, supporting multiple channels of ADPCM (Adaptive Differential Pulse Code Modulation) audio. Games that utilized the Qsound board offered richer, more immersive soundscapes compared to their contemporaries. The integration of Qsound-hle into MAME aims to preserve this aspect of gaming history, allowing players to experience these classic titles with their original audio intact.
For years, MAME emulated this by using a high-level emulation (HLE) approach. Instead of simulating every microscopic electrical signal of the chip, developers wrote code to mimic its overall behavior. The qsound_hle.zip file contains the specific instruction data (the ) that the emulator needs to run this audio simulation. Why You Might Be Looking for It If you try to launch games from the Capcom Play System 2 (CPS2) Street Fighter Alpha Marvel vs. Capcom Darkstalkers —and receive an error saying dl-1425.bin NOT FOUND , it means you are missing this file. Key Facts for Your "Story" The "HLE" in the name : Stands for High-Level Emulation
Here is why that happens: