This specific zip file contains the dl-1425.bin file, which is the firmware or program code that tells the DSP how to handle audio, including 16 PCM channels, ADPCM channels, and echo/filter effects typical of the CPS-2 board. Why Do I Need qsound-hle.zip? (The Shift from qsound.zip)
Replicates the functions and logic of the sound chip using standard computer code. qsound-hle.zip file