Science & Technology

Silent animation makes a 'thudding' sound

By T.K. Randall
December 4, 2017 ·  28 comments
Watch this animation closely for a while - can you hear anything when the pylon hits the ground ?


This mind-bending audio illusion, which has been going viral over the last couple of days, shows a trio of electricity pylons using a length of cable as a skipping rope.

Despite the fact that there is no audio however, many people have reported hearing a distinct 'thudding' sound each time the jumping pylon hits the ground.Dr Lisa DeBruine, a psychologist at the University of Glasgow, posted the animation on Twitter and then conducted a poll of 15,000 people to find out whether or not they could hear anything.

The results indicated that as many as 75% of those who viewed the image could perceive a sound.

According to Dr DeBruine, the reason for this is the ear's 'acoustic reflex' - a defensive mechanism designed to protect your hearing from an anticipated loud noise.

In this case the noise never comes, but that doesn't stop your ears 'squinting' in anticipation.

Source: Alphr.com | Comments (28)

Tags: Audio, Illusion