Audio Illusions

The boingers had a good piece up today about audio illusions. Go here to see the article, and here to see the original post. I tried the first one and it was just a stereo illusion, kinda cool. The second one here was really neat, just wondering what you heard when you listen to it. The third one was kinda neat, amazing how the brain works. The fourth one took me some time but I could feel it working, seemed as if it ebbed and flowed. The fifth one, really shows how nicely the brain works. Enjoy