Raising Jake Studios Limited-S Free Full Activated

It uses a different approach than typical De-Essers, Dynamic EQs, etc., in that it does not use a traditional compressor-type attack and decay level detector. Instead, Limited-S uses a speedy Finite Impulse Response (FIR) filter that calculates the signal's envelope at all times.

There is no need to fuss with attack and decay settings to get acceptable results. When Threshold and Ratio are appropriately set, de-essing action will be completely transparent in most cases. All you will hear is less sibilance.