This sound comes from Five Nights at Freddy's and is commonly identified as the door lights buzzing effect. The game helped popularize lots of short mechanical audio cues, and fans still reuse them in horror edits, reaction clips, and gameplay memes. It remains recognizable because the series has a strong audio identity built around brief, stressful sounds that signal danger or uncertainty. It is often used alongside the FNaF Jumpscare Scream in fan-made compilations and references to classic game moments.