Some hear "Yanny" while others are hearing "Laurel".
The video, which has gained traction this week across social media, is sparking a heated debate, similar to the pink or gray shoe and the blue or gold dress.
What do you hear? Listen to the video in the tweet below.
What do you hear?! Yanny or Laurel pic.twitter.com/jvHhCbMc8I
— Cloe Feldman (@CloeCouture) May 15, 2018
There are reports of people hearing the audio differently through speakers and through headphones. Try it out!
POLL: What do you hear? #TeamYanny #TeamLaurel #abc15
— ABC15 Arizona (@abc15) May 15, 2018
There's a simple explanation for why people perceive one thing so differently -- and science can explain it.