Cool Magic Sound Illusion

There is a video in youtube that offers a very good illusion. The sound falls deeper and deeper as you listen to the audio, even after you play it again.
Do you know where I can find the video? It's a great audio illusion.

asked by Thimble in Dogs | 3945 views | 12-18-2007 at 07:13 AM

I've listened to the audio too. Even if you listen it ten times, the audio keeps on going down. No idea how it works though.

answered by Kampfsalat | 12-18-2007 at 01:53 PM

How can that be possible? Also, can anyone post a link to the audio?

answered by zglows | 12-18-2007 at 10:34 PM

It's the same sound over and over again but your brain captures the lowest tones everytime you hear the sound.

answered by ghosttown | 12-18-2007 at 11:20 PM

And you can listen to 2 tones, an octave, so you remember the lowest tone, and that's the highest in the next round.

That's how it works.

answered by Kampfsalat | 12-19-2007 at 08:13 AM

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