Loud jumpscare sounds grew out of online screamer and prank culture, where a quiet setup is broken by a sudden, deafening noise meant to shock the viewer. They became a staple of reaction videos, horror edits, and meme compilations because the effect works even when the audience expects it, and the short length makes the clip easy to drop into almost any video. Creators still use it today for jump scares, fake-out endings, and Halloween-style pranks, where a single loud burst does more work than a long build-up.