[sdiy] Modeling circuits

[Barry Klein]

I am wondering if they go and do spectrum analysis/ FFT response
of say a Fender Twin and then only use their DSP platform to do
a frequency subtractive overlay on the incoming signal - OR - 
could they also do an analysis of the incoming signal and then
know better what to do to get it to be a better match to the original
amplifier output response (that would be actually increasing frequency eq
gain).  
I know right now it seems pretty lame to spend so much to get a VCO to
match a Moog or whatever, but these costs are coming down and if you
go this far you can then go much further obviously.  The control voltage
indicates to the DSP the frequency, then analyze the input waveform and
modify it as desired.  Such modification could be scripted too. So rather
than just a wavetable thing this would be that and more.

Barry



Do you mean the modelling of circuits to emulate the sonic 
characteristics of analog or digital/analog gear (something like 
https://ccrma.stanford.edu/~dtyeh/ for instance)? The other 
interpretation (circuits used for modelling the behaviour of other 
circuits) does not make a lot of sense to me in the context of Line6 
modelling pdeals. Those are DSP based devices. I guess the exact 
approach/set of algorithms they use is proprietary.

	Thomas
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