The original THX Deep Note was created by audio engineer James A. Moorer and introduced in 1983 as part of the THX cinema presentation. Its layered synthesized tones gradually converge, producing the powerful swell associated with theatrical sound demonstrations. Internet creators later transformed recognizable versions of the cue through bass boosting, clipping, and extreme volume, creating the earrape meme format represented here. These edits remain popular because the gradual buildup gives viewers time to anticipate a payoff before the distorted climax overwhelms the scene.