Created via editing the free great sound here: https://www. Freesound. Org/people/patricklieberkind/sounds/207321/. I'm using for a large machine powering down. Will work for vehicles, robots, industrial machines etc.
I made a jumpscare out of this file. Https://freesound. Org/people/reitanna/sounds/343915/. I put a few filters on it and made it sound more fnaf like so if you like that or if you need a robotic jumpscare sound (meaning tiny characters obviously) then this can work i guess.