The Deep Note was created by computer scientist James A. Moorer at Lucasfilm and first played in theaters in 1983 before Star Wars: Return of the Jedi. It became the signature audio logo for THX, the cinema sound certification company founded to guarantee high quality playback in theaters and home systems. The distinctive glide from dissonance to a soaring chord was designed to show off a room's full frequency range. Decades later the clip circulates online as a meme for anything overly cinematic, loud, or presented with mock serious importance.
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The iconic THX deep note sound effect from movie theater intros, a powerful rising synth swell used for epic reveals and dramatic video openings.
This is the famous THX Deep Note, a massive synthesized chord that starts as a low chaotic rumble and slowly climbs into a bright, powerful major chord that fills the whole room. The sound feels huge and cinematic, shaking speakers as dozens of tones slide upward and lock together in perfect harmony. Listeners instantly associate it with the start of a blockbuster film and that moment of anticipation before the picture begins. This version is noted for being especially loud and clean, making the swell hit even harder on headphones and home theater systems.
