Showing posts with label Chaotic oscillator. Show all posts
Showing posts with label Chaotic oscillator. Show all posts

Tuesday, December 4, 2012

Rossler Circuit Revisited


I have been working on this one for a while now but when I actually build the circuit it does not sound quite like it is supposed to so I think I will redo this one using the above design.  The Rossler attractor is a chaotic oscillator.  I put my circuit on an oscilloscope and it definitely is not exhibiting chaotic behavior.

Friday, August 17, 2012

Chaotic Circuits


Ian Fritz has a number of chaotic circuits on his page that look really interesting.  I thought I would start with one of the simpler ones.  This is my drawing of the Driven Damped Well chaotic oscillator.  Unfortunately this does not seem to make any sound when I power it on so I need to trouble shoot it.

Update: I did some trouble shooting but it still does not behave as expected. (chaotically) it seems to be passing the original sound to the output.  I am monitoring the NL output so I think I will switch over to the X output.

Update 2: I did more trouble shooting and switched the output to X and now it does indeed behave chaotically although in a not very usable fashion at the moment.  One thing I love about chaotic systems is that they depend on prior initial conditions.  So as you turn the knobs the circuit may not be making any sound, then you pass a point and here a blip, as you tweak around the blip you gradually bring it into oscillation.  Suddenly the oscillation goes away and you get silence again.

I have been feeding the output of an Atari Punk Console in to drive this circuit.  At some settings it has been making some overtones and clicks but they are difficult to find.