July 31, 2017 at 12:38 pm
Shepard Tones: The Sound Illusion that Makes Christopher Nolan Movies So Intense
![Shepard Tones: The Sound Illusion that Makes Christopher Nolan Movies So Intense](https://twistedsifter.com/wp-content/plugins/lazy-load-0.7/images/1x1.trans.gif)
Christopher Nolan explains his obsession with Shepard Tones—layered sound waves that simulate a constant ascent in tone—to create a sensation of building tension