Odds are if you are under thirty, you hear Yanny or Leon The Professional Jean Renno Gary Oldman Natalie Portman Danny Aiello shirt. If you are over thirty you hear only Laurel. Of course, there are exceptions in those ages depending on whether you have hearing loss in the low range (can’t hear Laurel), or the high range (can’t hear Yanny). Both are recorded and played over each other. I’m over 30 and hear only Laurel so I have some high range hearing loss.