[sdiy] tanh distortion in a filter

[Scott Gravenhorst]

This got my interest.  

Assuming work in the digital domain:

Is tanh distortion something that works in a filter like a state variable?

If so, where does the distortion go?

What does it do?  (as in what does it sound like?)

I assume tanh is something probably best implemented as a table - or is
there a reasonably good simply implemented approximation that can be used?

Any caveats?

Thanks for your thoughts...

-- ScottG
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-- Scott Gravenhorst
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