Re: [LAU] Octaver or fuzztone effect

From: Erik de Castro Lopo <mle+la@email-addr-hidden-nerd.com>
Date: Tue May 29 2007 - 10:16:22 EEST

Robin Gareus wrote:

> I've been dreaming about a /jackifiying/ spice ;) - I spiced up my
> Pfingst Montag by added a libsndfile voltage-source to ng-spice.

Awesome. I love hearing about things like that :-).

> Now it's Tueday and using a IR seems the way to go... simulating the
> foxx effect alone is not trivial.

IR == impulse response??

If so, you are way off track. The impulse response method of analyzing
systems is *only* valid for linear time-invariant (LTI) systems and
things like fuzztones are *not* linear.

For non-linear systems you need things like Volterra Series, but beware,
there is some seriously wicked maths there.

> I've started to document the spice patch at
> http://mir.dnsalias.com/wiki/spicesound - the code's barely a few hours
> old and highly experimental. NTL, it's already allows to process spice3
> netlists reading and generating wav file(s).

Damn thats cool!

Erik

-- 
-----------------------------------------------------------------
Erik de Castro Lopo
-----------------------------------------------------------------
"It's not that perl programmers are idiots, it's that the
language rewards idiotic behavior in a way that no other
language or tool has ever done." --  Erik Naggum
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Received on Tue May 29 12:15:02 2007

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