Using cast when channeling makes desecrate/offering too lound

If you use Soulwrest unique staff and use skill Cyclone supported by Cast When Channeling, Desecrate and Spirit/Bone/Flesh Offering, you end up casting ~one offering per second which makes it way too loud for long game play. Only solution is to pretty much turn sound effect volume to near zero. This is generic problem, similar to running something like Wardloop build which autocasts several spells per seconds (or did in the past).

Could be get volume slider on individual skill effects perhaps (maybe in Cosmetics tab)?