Desafinado, Part Five: Getting Down Without Hitting The Bottom

re: Desafinado, Part Five: Getting Down Without Hitting The Bottom

Mat Hall — Mon, 18 Apr 2005 21:02:37 GMT

Here's an online (Java) implementation with a few knobs to twiddle...

http://www.cs.ubc.ca/nest/imager/contributions/flinn/Illusions/ST/st.html

re: Desafinado, Part Five: Getting Down Without Hitting The Bottom

Alex Papadimoulis — Mon, 18 Apr 2005 21:15:34 GMT

Now that's a pretty damn cool aural illusion!

re: Desafinado, Part Five: Getting Down Without Hitting The Bottom

bramster — Tue, 19 Apr 2005 21:45:52 GMT

While working in a bacteriology lab many years ago, I was next door to the centrifuge room, which encluded a "SuperCentrifuge", capable of spinning small Wasserman-sized test tubes up to very high RPM. It was always interesting to hear the pitch of the sound increase, seemingly continuously, but never departing the human hearing range.

I now wonder if something of the same sort wasn't happening there. . . perhaps multiple frequencies creating beat frequencies which became audible as the main frequencies went off the high end . . . Curious!

Aural Illusion

Dickson's Blogathon — Thu, 21 Apr 2005 09:20:16 GMT