The file is a mandatory BIOS-like ROM required for modern versions of the MAME (Multiple Arcade Machine Emulator) to emulate the specialized audio hardware used in many 1990s Capcom arcade games. Without this specific file in your ROMs folder, games utilizing the QSound audio chip—such as Super Street Fighter II or Marvel vs. Capcom —will fail to launch and typically trigger a "dl-1425.bin NOT FOUND" error message. What is QSound (HLE)?
Instead of emulating every single transistor and calculation inside the physical QSound chip (known as Low-Level Emulation or LLE), HLE acts as a translator. It understands what the game wants the sound to do and reproduces that outcome directly.
: You are using an older MAME arcade set (pre-0.201) that only includes the obsolete qsound.zip . qsound-hle.zip rom
: While qsound_hle implies "High Level," the current MAME architecture often requires this specific zip package to satisfy its internal database requirements for device ROMs. Summary Table File Requirement qsound_hle.zip dl-1425.bin Required for CPS2 audio (HLE driver) qsound.zip dl-1425.bin Required for CPS2 audio (LLE driver) Placement /mame/roms/ Must be in the root ROM directory mame/src/devices/sound/qsoundhle.cpp at master - GitHub
In the arcade world, QSound became famous as the audio backbone for hardware. Games like Street Fighter Alpha 3 , Marvel vs. Capcom , Super Puzzle Fighter II Turbo , and Darkstalkers all rely on QSound to deliver their iconic, booming soundtracks and crisp, directional sound effects. The file is a mandatory BIOS-like ROM required
Keep the target game zip (e.g., sfa3.zip for Street Fighter Alpha 3 ) in the same folder. 2. RetroArch (FB Neo / MAME Cores) Locate your active RetroArch system or content directory.
The Capcom CP System II (CPS2) and ZN arcade hardwares utilized a dedicated audio chip called the . This chip features a digital signal processor (DSP) embedded with a factory-programmed internal software instruction set. What is QSound (HLE)
When searching for the file, check archival platforms like the Internet Archive MAME ROM Sections to download verified, complete system BIOS packs. Always use an archive utility like to check that the internal dl-1425.bin file displays the matching CRC32 code ( d6cf5ef5 ) to verify it is non-corrupt and valid. If you are setting up a specific system, let me know:
Disclaimer: This article is for educational purposes regarding emulation technology and file structures. It does not provide links to or instructions for downloading copyrighted ROMs or BIOS files.
If you have legally obtained qsound-hle.zip (for example, by dumping it from your own arcade PCB or finding an archival copy), follow these steps: