Vak Ath

I need to model exactly the input / output characteristic of a distortion pedal's diode clipper.

I have used matlab to obtain a Vi / Vo graph that looks like the attached.

I need to some how use the data points in the graph as the voltage in vs voltage out graph in something like a buffer? How ever I have no idea where to begin!

The tanh function is a decent approximation however the purpose of the project was to use the actual diode clipper representation rather than just an estimation.

I need to use some kind of lookup table function that takes some input (Vi) in the signal domain in MaxMSP, then uses the plot to arrive at a Vo and output this also in the signal domain.

Any other information required please ask.

Any other information required please ask.
Any help would be great.


modelling-input-output-characteristic-of-distortion

Check out lookup~, it should do what you want. You'll probably need oversampling as well (at least 4x) and you can do that inside a poly~.

Check out lookup~, it should do what you want.  You'll probably need oversampling as well (at least 4x) and you can do that inside a poly~.


any idea how would I scale it to ensure that it matches properly . T

he input is going to be anything up to 5, lookup uses inputs up to 1.

How could I scale it to ensure it still works

any idea how would I scale it to ensure that it matches properly .   T

How could I scale it to ensure it still works


Modelling Input Output Characteristic of Distortion