The internal dl-1425.bin has the correct CRC hash (typically d6cf5ef5 ) required by modern MAME versions.
LLE attempts to replicate the physical circuitry and exact behavior of the arcade sound hardware down to the individual clock cycle. qsound hle zip patched
In the context of arcade emulation, refers to a custom audio system developed by Capcom for their CP System II (CPS-2) and CP System III (CPS-3) arcade hardware. It enabled high-quality digital audio, including sampled voices, music, and sound effects. The internal dl-1425
If you want to optimize your arcade emulation setup further, let me know: including sampled voices