Dl-1425.bin %28qsound Hle%29 Verified Jun 2026

The file is usually tiny—approximately (specific sizes vary by revision). It often sits loose in the same folder as the game ROMs or inside a bios subfolder.

To be recognized by modern emulators, the file must match these specific attributes:

The file dl-1425.bin is a critical audio firmware component required for High-Level Emulation (HLE) of the system, primarily used in Capcom's CPS2 (Capcom Play System 2) arcade hardware. Understanding dl-1425.bin and QSound HLE dl-1425.bin %28qsound hle%29

The was a custom audio processor based on the AT&T DSP16A . Released in 1991, it became the backbone of Capcom’s CP System II (CPS2) hardware.

Without dl-1425.bin , the emulator cannot process QSound effects. You will often see a warning like: Understanding dl-1425

. Starting with MAME version 0.201, this file is specifically required to be within an archive named qsound_hle.zip for "High-Level Emulation" (HLE) of the audio chip.

MAME cannot find the required audio chip data to run the game. You will often see a warning like:

The inclusion of this file allows for much more accurate sound spatialization and effects as originally intended by Capcom's sound engineers.