ELI5: Explain Like I'm 5

Shepard tone

Okay, kiddo, let's talk about something called Shepard Tone. Have you ever heard that cool sound that keeps going up and up but never seems to stop? That’s what is called a Shepard Tone!

So imagine that you’re walking up the steps of a tall building, one step at a time. You’re not sure how many steps there are because you can’t see the top. But every time you take a step, the sound around you gets higher and higher.

The more steps you take, the higher the sound gets. But even when you reach the top, the sound keeps going up and up, like you’re still climbing the stairs even though you’re already at the top.

The cool thing about Shepard tone is that because it never stops going up, it creates the impression of constantly rising pitch. It’s like an auditory illusion that tricks our ears and makes us feel like we’re hearing something that’s impossible to play on a piano or sing.

So next time you hear a cool sound like that, remember it’s called a Shepard Tone and it’s one of the many fun ways we can play with sound!