The sound is tied to the Backrooms, the online horror concept that began as a 2019 creepypasta about endless yellow rooms beyond reality and expanded through videos, games and fan lore. In popular series the Bacteria entity became one of its most recognised monsters, associated with distorted audio and found footage scares. Siren-like howls fit that world because they suggest an alarm or a creature signalling from another level, so editors reuse this clip in fan films, game edits and liminal space compilations across social platforms.