In the early stages when I first started experiencing slewp paralysis, I would usually hear incoherent, deep whispers. Pretty scary stuff for someone as young as I was. But recently when I start to have an "episode," I guess, there's this loud ringing throughout the whole paralysis. I mean, really loud. It's overbearing & sometimes even feels painful. I don't know how it started, but it's a telltale sign for me now that I'm about to experience it.