When science sounds like magic

Can we guess if you are wearing headphones without seeing you?

Your Listening Situation

Different sounds around you and the devices you use may affect the experiment.

  • More than a thousand people tried this neat trick
    and it worked for most of them.
    Will it work for you?

    Try it, then we'll explain the science behind...

  • If it is very noisy around you, you may want to find a quieter place.

    Please try to respond to the questions below the best you can...

Volume Calibration

  • We cannot guess without this:
    This is very important:
    Please set your volume level to around 40% before you continue.


Question 1 of 3

  • Please, click on the play button and tell us
    how balanced across left-right you hear the sound:

Balancing image

Question 2 of 3

  • Please, click on the play button and tell us
    how balanced across left-right you hear the sound:


Balancing image

Question 3 of 3

This is the last question.
Play these two examples to learn what is
Even and what a Ringing sound:

<<< Play
<<< Play

<<< Play
Now select!
<<< Play
Now select!
<<< Play
Now select!
2 more...
<<< Play
Now select!
1 more...
<<< Play
Now select!
The last:
<<< Play
Now select!