#### Mowgli

##### Tele-Meister

The sampling rate for any accurate reproduction must exceed the Nyquist frequency by 2x, if I recall correctly. Otherwise the limited bandwidth is exceeded and you get aliasing or truncation errors. So good samples prior to D to A conversion via FFTs (fast Fourier transforms) must contain enormous data sets where high frequency information is present.

So do modelers involve real time sampling of data (AtoD sampling creating finite voltage value data sets) followed by some sort of data interpolation based upon manipulation of that sampled data set by an imprint algorithm? And all of this occurs prior to DtoA conversions?

That seems incredibly data and processor intensive. Plus, given the finite data sets that have to be acquired, I have difficulty understanding how clipped waves, specifically the higher frequency information located at the corners, can be accurately reproduced without artifacts and latency.

I feel there’s a gap (or ten) in my knowledge base here so any help with this understanding would be appreciated.

And one additional thought. I’ve read a few posts here and elsewhere about people selling their analog gear and adopting this new modeling technology exclusively as if this is the final frontier of electric guitar amp technology. Suddenly it occurred to me; what if a totally new and different technology emerged - something totally unforeseen - that rendered the present modeling technology obsolete. Would they regret selling off all of their analog gear if new technology was also based upon analog amplifiers as the basis of the new technology and their modeling data couldn’t be imported by this new technology?

After all, tube users didn’t foresee the discovery of solid state devices, for example. Just a thought.