Only some people can make this 'roar' sound in their ear – and it's driving Twitter crazy

TWITTER has gone into meltdown over a weird sound that some people can make in their ears.

Italian engineer Massimo went viral after tweeting about a muscle in your lugs that can create a "roar" noise.

To create the sound, which comes from inside your ear, you have to contract the muscle – but most people can't do this.

Simply screw up your face really tightly, including your eyes, and see if you can hear a low, thunder-like rumble.

Massimo wrote earlier this month: "A part of the human population can voluntarily control the tensor tympani, a muscle within the ear.

"Contracting this muscle produces vibration and sound. The sound is usually described as a rumbling sound."

The tweet may have gone viral this week, but this phenomenon has been known about since the 19th Century.

It's thought that the muscle in question, the tensor tympani, dampens out loud noises like sound of your own chewing, or thunderstorms.

When tensed, the muscle changes the shape of the eardrum to dampen vibrations and protect the ear.

Some people can do this manually, creating a rumbling sound.

How to make the 'roar' noise

Here's what you need to know…

  • Try scrunching up all of your face muscles and closing your eyes
  • This action can also tense a muscle in your inner ear, creating a rumbling sound
  • Only some people can do it, so if you can't hear anything, you may be out of luck
  • You can also replicate the sound by clenching another muscle near your ear
  • Try scrunching up a fist and squeezing it tight while holding it to your ear

"To me it sounds like when there’s a big thunderstorm," one Twitter user wrote in response to Massimo's post.

"The thunder is just lowly rolling around in the sky forever with only tiny flashes of lightning that don’t leave the clouds."

Others expressed surprise that not everyone could create the strange sound.

"I can do this! Woo! Didn’t know it was an uncommon thing. I have to close my eyes though," one user wrote.

Another said: "I didn't know what that was, but I've always been able to do that. Cool, thanks for this post! I've learned something new."

Other people didn't have quite as much luck producing the sound.

One tweeted: "I'm not one of these people and I feel like what it must be for colorblind people being privy to the discussion among normochromats."

The discussion sparks memories of "the dress", which sparked a global debate online in 2015.

It involved a photo of a dress posted online which some people saw as gold and white while others saw it as black and blue.

The dispute became so famous that it has since been used by neuroscientists in research over colour perception.

In other news, a weird optical illusion emerged this week that tricks your brain into thinking two cubes are spinning.

This optical illusion tricks you into seeing black and white picture in colour.

And, this one tricks you into seeing a brunette woman on the wall.

What do you think of the "roar" sound? Let us know in the comments!

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