How do they do it?

karmar

karmar

Inspired
Without revealing trade secrets, could someone explain the basic principle/process that Fractal uses to create their amp models? Do they model the actual circuit diagrams of the real amps? Or is it more of an empirical process whereby they feed an impulse into a real amp and measure parameters in the output signal (for example in their tone match block)? If they measure parameters, what are the parameters that they measure?
 
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I believe FAS produced a white paper on their MIMIC technology many years ago. Not sure how applicable it remains but I read it before I bought an AXE FXII XL+. Have you been to their website and done any reading? There is quite a bit out there for you to get the basics.

Also, spending time here re: tech notes section will offer many clues about how FAS thinks about these things, and how firmwares develop due to certain epiphanies/modelling approaches, incl. measurements. Again, these are clues to how they're thinking, and developing.

The secrets are well, secret.
 
Last time that the folks at Fractal did one of their fireside chats, they got a little tipsy and confessed that they think guitar players are neanderthals and couldn't tell the difference between a Pignose and a Dumble. To prove the point, the Axe-Fx II was designed with the guts of a Behringer V-amp. They were right of course. They started making hilarious amounts of cash. It is literally easier than printing your own money. So they expanded the line with the FX8 and AX8. BTW, there's a dip switch inside the FX8 to enable amp and cab modeling so don't pay extra for the AX8. Naturally, the MFC and pedal features of the FX8/AX8 are the guts of an FCB-1010 and they had the guy that does the Uno firmware do the custom LED programming.

And the editors are really just some high school kid's class assignment for a Visual Basic .Net programming class. They send the kid Steam gaming cards once in a while and he'll add some new demo knobs and stuff.

They have a laptop setup at a bar in downtown Boston (Cheers) where people can just pick who they want to post as on the forum for support. Karla and Norm post the best stuff. You can always tell when Dianne posts because she uses all the big words to try and impress people.

So to answer your original question, you're going to have to check with Uli Behringer.
 
karmar said:
Without revealing trade secrets, could someone explain the basic principle/process that Fractal uses to create their amp models? Do they model the actual circuit diagrams of the real amps? Or is it more of an empirical process whereby they feed an impulse into a real amp and measure parameters in the output signal (for example in their tone match block)? If they measure parameters, what are the parameters that they measure?
Click to expand...

Owner's Manual:

"Quantum™ Amp Modeling™ with Virtual Vacuum Tube™ Technology and MIMIC™


All this power would be useless without superior algorithms to take advantage of it. Years of research have yielded Quantum Amp Modeling Technology, comprising major breakthroughs in both preamp and power amp modeling. Quantum is the pinnacle of our multi-generational amp modeling and a complete departure from the static waveshaping technology used by other products. It entails digital replicas of vacuum tubes, complete with time, frequency, and level dependencies. This creates a level of dynamic realism in a class of its own. Like our "G3" modeling before it, Quantum™ also models the entire power amp, including the phase inverter, power tubes, output transformer, power transformer, choke, filter caps, and more. The results are amazing: tight bass, powerful midrange, silky highs, plus highly expressive touch sensitivity.

Our amp models are the result of thousands of hours of incredibly detailed analysis of the actual amps that inspired them. We spent a small fortune searching out and purchasing vintage and modern amplifiers to add to our reference collection. Quantum™ is a significant advancement in amplifier simulation unmatched by any other product at any price point."
 
hippietim said:
Last time that the folks at Fractal did one of their fireside chats, they got a little tipsy and confessed that they think guitar players are neanderthals and couldn't tell the difference between a Pignose and a Dumble. To prove the point, the Axe-Fx II was designed with the guts of a Behringer V-amp. They were right of course. They started making hilarious amounts of cash. It is literally easier than printing your own money. So they expanded the line with the FX8 and AX8. BTW, there's a dip switch inside the FX8 to enable amp and cab modeling so don't pay extra for the AX8. Naturally, the MFC and pedal features of the FX8/AX8 are the guts of an FCB-1010 and they had the guy that does the Uno firmware do the custom LED programming.

And the editors are really just some high school kid's class assignment for a Visual Basic .Net programming class. They send the kid Steam gaming cards once in a while and he'll add some new demo knobs and stuff.

They have a laptop setup at a bar in downtown Boston (Cheers) where people can just pick who they want to post as on the forum for support. Karla and Norm post the best stuff. You can always tell when Dianne posts because she uses all the big words to try and impress people.

So to answer your original question, you're going to have to check with Uli Behringer.
Click to expand...

............So ..... we now have the answer to "who is @Bakerman ?".......it's NORM!!
 
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