[sdiy] Much progress on Buchla waveshaper analysis

[mark verbos]

Aaron,

I can't get your audio files to work, but the graph looks about right. 
However, I'd expect more zags in it, since there are 5 stages and each 
one folds both sides over.

Mark



Aaron Lanterman wrote:

> 
> Thanks to everyone for their help - I finally cracked (I think) how the 
> CA3160's were being used.
> 
> Anyone out there know what the total end to end nonlinearity is supposed 
> to look like? In particular, does it look anything likes:
> 
> users.ece.gatech.edu/~lanterma/buchla_nonlinearity.png
> 
> Anyone actually heard a Buchla 259 in person? If so, do
> 
> users.ece.gatech.edu/~lanterma/buchla_timbresweep.png
> users.ece.gatech.edu/~lanterma/buchla_symmetrysweep.png
> 
> sound like someone sweeping the timbre and symmetry controls, respectively?
> 
> (Based on seeing a spectrogram, there's a wee bit of aliasing going on 
> in my simulation, but anyway)...
> 
> - Aaron, who should have gone to bed hours ago, but couldn't until he 
> got this hammered out
> 
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> 
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> School of Electrical and Comp. Eng.    Fax:    404-894-8363
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