I love this thing. I’ve only used it for a short amount of time, but it’s become my go-to de-esser.
It compresses your sibilance so cleanly that I hardly know it’s on. Plus, it has a solo button so that you can listen to ONLY the things being compressed.
It’s a fantastic tool to make sure that you’re grabbing only sibilance and not extra notes.
Original Recording:
With Pro-DS: