YANNY or LAUREL! What is it all about?

An audiologist has an explanation for why everyone on the internet can’t stop asking: “Yanny” or “Laurel”? 

There was a  practical test done where a group of people were told to listen an audio clip. It was observed that many of them herd the word "YANNY" whereas many herd "LAUREL".

“This all comes down to the brain,” says Dr. Kevin Franck, director of audiology at Massachusetts Eye and Ear. “The fact that brains go in one way and some brains go in the other means that we’re all just wired a bit differently based on our experiences.”

So the question is why does that happen? What makes it so wierd ?

“There’s just enough ambiguity in this fairly low-quality recording that [some] people are hearing it one way and some people are hearing it another,” Brad Story, the associate department head of speech, language, and hearing sciences at Arizona State University, told me.

Humans typically pay attention to three different frequencies when they’re listening to speech. Story said the lowest of the three frequencies is “absolutely essential” for the L’s and R’s — the consonants that make up “Laurel.”

“So when you’re listening to ‘Laurel,’ the reason you get L, R, and L is because of the movement of that third frequency,” he said.

Here’s the catch. The word “Yanny,” the second frequency, has almost exactly the same pattern as the L, R, L in “Laurel,” he added. 
So if you’re hearing “Laurel,” you’re likely picking up on the lower frequency. If you hear “Yanny,” you’re picking up on the higher frequency.

It is said that the people hearing "YANNY" are mostly of a younger age and have healthy ears whereas people hearing "LAUREL" are usually of an older age group.
So what do you hear ? YANNY or LAUREL!