[sdiy] FW: Roland TB-303 filter analysis

[Dave Magnuson]

Forwarded this from the "Technophiles"  newsgroup.  I figured some of the
list members may enjoy it.  It's a Microsoft "Power Point" Slideshow

Dave Magnuson


>
>I thought that some of you might take some passing interesting in a 
>presentation that a friend of mine gave rececently for a class. It is an 
>experimental analysis of the Roland TB-303 filter. I'm sure that all of 
>this has been done before (after all, where did the Propellerheads get 
>their models for ReBIrth?), but it is the first time that I have ever seen 
>impulse responses and transfer functions for my happy little acid box, so I 
>thought it was sort of cool. Some of the written content in the 
>presentation might be a bit shaky (ie. flat out wrong), but the graphs are 
>the focus, and those are correct. FYI, in order to do this project, my 
>friend and I modded the 303 to filter the mix in (a standard 303 
>modification); that was sort of cool :-D (although not nearly as cool as 
>Obis' blue LEDs :-P (that's pretty fly, I gotta say)).
>
>http://wisl.ece.cornell.edu/roth/research/TB-303_Filters.ppt
>
>Martin
>
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