[sdiy] Analog Modeling, with a computer!

[Jeff Farr]

Ok, so I have a secret... The whole reason I'm learning how to make 
electronic instruments is beacuse I wish to understand the concepts used to 
make component modeled VA synths akin to Arturia's product line. Now, I am 
familiar with 'standard' physical modelling, phase-delays, point masses, 
etc. However, I have yet to make the jump from this to modeling an 
electronic component, further, it seems this is still very much black magic, 
in my discussions with those at Yamaha, Wine County and a few others the 
conversation comes to a complete halt when I ask about how their analog 
modelling works. Not even a "compass pointer" on where to look in order to 
teach myself. So far, in a year or searching I have found nothing about 
modelling electronic components in a library, the internet, or someone elses 
brain (at least not in a brain that was willing to share). SO, how 'bout it 
SDIY? does anybody have a light they can shine on the type of algo needed to 
act like a tl072, 3080, elko cap? I've begun looking into SPICE, as it 
dawned upon me that a current simulator is actually very close to what I'm 
looking for, however, it is also clear that there must be optimizations to 
the algos to make this work in real time, and to truely capture the sound of 
these old analog circuits...
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