Yanni or Laurel? It revealed the secret audioillyuzii, due to which the dispute has the entire Internet

On the Internet are actively discussing the audio version dresses of contention. appeared audio recordingAfter hearing that some people hear the name of Yanni (Yanny), and others - Laurel (Laurel). Who is right?

Many have tried to change the record sound with bass boost and volume, but in fact it may have no effect. It sounds different, but all the people will still hear the same name.

In fact, the record entered into only one name - Laurel, and the other is just an illusion, a kind of side effect of the operation of our hearing system and brain.

Professor Brad Storey (Brad Story) from Arizona State University, an expert on speech, language and hearing aids, did some investigation in the course of which the only correct name was found.

The picture above are three waves. The first on the left - this is the original audio, which mainly comprises the sounds "n" and "p". It is possible to say with certainty that the original record inherent pronunciation "Laurel," but where did "Yanni"?

At the same image at the bottom of the voice reproduction record is located, where it all starts with high sound "l", and then falls into the "p" and rises again to the final "l". Uttering these sounds, we publish certain sound waves. Spectrograms, and they were sealed.

Record low quality creates ambiguity acoustic perception in the high frequencies, so many people hear "Yanni" instead of the "Laurel."

Brad Storey, professor of the University of Arizona

In the spoken word "Yanni" about the same wave characteristics, as well as the "Laurel." It also has a wave form of the "up-down-up", but only with a little different acoustic characteristics. Low quality recording and several superposed frequencies above 4.5 kHz - the reason that some people hear the word "Yanni".

There is also a great role played by the human brain. Do you hear what you expect to hear.

The brain is always trying to reduce energy costs and, consequently, it is easier to recognize a familiar sound to you than to decipher the new.

Do not forget the sounds filtering functions: people can tune in to the desired wave to him. For example, in a noisy coffee shop, we are able to listen to the words of friends sitting at a table, but we can and eavesdrop on his back. So it is with frequencies: from the already existing experience brain chooses which specific focus.

Some people may also hear the names Yanni and Laurel at the same time as their brains expects high frequencies, but also to lower it, too, is ready.

Finally perform a simple experiment: listen to the record in the order two.

Recording under the name Noisy you will find some unpleasant screech without any sense. When you listen to the second, a clean record, go back to the first. Now distinguish voice among seemingly mindless grinding? That's how the brain works: he hears already known and expected.