The chime comes from the Windows operating system, where a short startup melody has greeted users as their computer boots for decades. On meme soundboards and in short-form video, that familiar sound is often remixed at extreme volume as an earrape joke, a style that relies on sudden loudness for comic shock rather than on the melody itself. Because almost everyone recognises the boot sound instantly, the amplified version works without explanation, and it keeps circulating as a quick intro, prank or reaction clip.