Deep boom sounds have become a staple of online video editing because they instantly signal that something big is about to happen. The style comes from cinematic trailers and dramatic television, where low bass is used to create tension before a reveal, and creators adapted it for short-form clips, gaming montages and reaction videos. Its ten-second length makes it especially useful for build-ups, countdowns and slow zooms, which is why it keeps appearing in memes, edits and highlight reels long after flashier effects fade.