Immortal Call - please make the audio less obnoxious

It's extremely loud and it just silences everything out around you for no reason. It's so annoying that i'd rather not run any guard skill on my character rather than have to listen to it constantly.

Please let us have an option for either a slider for all effects in the game (and i mean per-effect, not globally via options menu), or make the invisible effect apply to it so it generates no sound.