Closest I’ve seen to this being done was the movie Black Hawk Down. Meanwhile can you imagine everyone screaming at each other in the John Wick films? Other movies like Aliens would have been a whole different level of horrifying as the sound fades away until its just the sound of the actor’s muffled heart beat and their cluelessness that the xenomorph is crawling up behind them.
Mines more of an nngg sound but I could see sometime describing it as eeee. It’s a more or less solid constant tone but it’s more nasal for me, if that makes sense?