Make sure you don't have Action Replay codes enabled that allow some audio to be disabled, also make sure all three check boxes are checked except for the Resident Evil Zero fix in the DSP configuration.
Audio in these games is still a bit buggy, the issue you mentioned is normal but music should work in most instances for this game.
Audio in these games is still a bit buggy, the issue you mentioned is normal but music should work in most instances for this game.
