Dl-1425.bin %28qsound Hle%29 ((full)) May 2026

What is dl-1425.bin?

dl-1425.bin is a ROM file (a copy of data from a read-only memory chip). It was originally dumped from an arcade game board made by Capcom in the early to mid-1990s. Specifically, it came from the CP System II (CPS-2) arcade hardware.

Purpose

The dl-1425.bin file likely contains data used by an emulator to provide QSound HLE audio. This could include: dl-1425.bin %28qsound hle%29

If you are seeing errors regarding this file, it is typically because MAME changed how it organizes these files starting with version 0.186. Mame - dl-1425.bin NOT FOUND (Help) What is dl-1425

What does “qsound HLE” mean?

• QSound is a 3D audio positioning technology that Capcom licensed. On CPS-2, a dedicated audio CPU (a Zilog Z80) and a QSound DSP chip worked together to produce music and stereo sound effects.
• HLE stands for High-Level Emulation. This means an emulator does not try to simulate the actual QSound DSP chip hardware instruction-by-instruction. Instead, the emulator intercepts calls to that chip and translates them into host system audio commands.

This tiny binary file is the internal program (the DSP data) for the QSound processor used in Capcom Play System 2 (CPS2) and ZN games. Without it, classic titles like Street Fighter Alpha, Marvel vs. Capcom, and Darkstalkers remain silent or refuse to boot. The Evolution of the "Missing File" Error QSound is a 3D audio positioning technology that

The DL-1425 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.

Technical Hurdles: Accurately integrating and supporting files like dl-1425.bin requires deep technical knowledge and significant development time. Ensuring that the file works correctly within the emulator, without causing compatibility issues or crashes, is a non-trivial task.

4. Technical Details of the File

• Size: Usually 32,768 bytes (32 KB)
• Checksums (common known dump):