It is the deeply resonant chord that plays at the start of any THX Certified performance. The THX Deep Note was composed by Lucasfilm sound engineer Dr. James ‘Andy’ Moorer and was screened at the start of the 1983 premiere of Star Wars: Episode VI – Return of the Jedi.

The Deep Note is the sound trademark of THX, being a distinctive synthesized crescendo that glissandos from a relatively narrow frequency spread (about 200–400 Hz) to a broader frequency spread (of about three octaves).

THX Ltd. is an American audio company based in the San Francisco Bay Area. It is known for its suite of digital high fidelity audiovisual reproduction standards for movie theaters, screening rooms, home theaters, computer speakers, video game …

Now, over thirty-five years later, products bearing the THX brand still ensure you’re getting the truest sense of the artist’s vision—audio and video—in the cinema, at home, and on the go. Learn more about THX

Designed to meet the needs of the growing virtual music listening trend, the THX Spatial Audio Cloud Clubbing mix is a custom tuning that immerses listeners in the music by simulating the way audio sounds live at a club.

2021年12月15日 · The “Deep Note”, conceived by James Moorer, is the trademark sound of the THX movie studio founded by director George Lucas. It first appeared on the movie “Star Wars: Episode VI – Return of the...

2021年7月14日 · Beyond meeting THX’s standards for performance, THX-certified A/V receivers possess special THX listening modes, like THX Cinema, THX Game, THX Music, and THX Surround EX. As their...

Audio: A synthesized crescendo sound effect known as the "Deep Note", coded by James Andy Moorer. It starts off with a group of 30 descending synthesized voices reminiscent of the sound of an airplane flying. Each voice moves slowly and randomly in a …

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The Deep Note is THX's audio trademark, being a distinctive synthesized crescendo that glissandos from a low rumble to a high pitch. It was created by Dr. James A. Moorer, an ex-employee of Lucasfilm's Computer Division in late-1982. The sound is used on trailers for THX-certified movie...