Re: [Faudiostream-users] DIstortion, Clipping, Bitcrushing and other Distortion-Types

[Dario S. <san...@gm...>]

You may also want to check the saturators in Zavalishin's book; Google "the
art of va filter design". I have implemented some of those here:
https://github.com/dariosanfilippo/edgeofchaos/blob/master/stabilityEOC.lib.

For the folding functions, you can see what Till has ported from
Supercollider:
https://github.com/tai-studio/faust-sc/blob/116f80e38ea1ca5c95053f4360804f45dd7494b9/lib/scUGens.lib#L470
.

These wavefolding techniques also seem interesting and could be implemented
in Faust:
https://ccrma.stanford.edu/~jatin/ComplexNonlinearities/Wavefolder.html.
I'll give it a try later.

I've been doing some experiments with time-variant transfer functions being
written by the input signal itself and I've had promising results, although
this algorithm, ideally, should be implemented using tables where each
point in the TF smoothly transitions from the current value to the new one.
As it is now, you often hear a click when the TF value is overwritten in
the delay line as it most likely jumps.

You can have a look here:
https://github.com/dariosanfilippo/edgeofchaos/blob/a010b0ca6c5d8b850ecbf954b4e4aff4ad60a752/outformationEOC.lib#L571
.

Cheers,
Dario

On Fri, 4 Dec 2020 at 16:52, da <da...@ra...> wrote:

> hello,
>
> i am trying to figure out how to create different distortion effects. is
> there a site where you can look at some algorithms and how to implement
> them into faust?
>
> i am very much interested in these kind of distortion-types:
>
>
> Tube/Valve Distortion
>
> Clipping
>
> Foldback
>
> Overdrive
>
> Bitcrushing
>
> Sample Rate Reduction / Decimate
>
> Wavetable Distortion
>
>
> thanks a lot :-)
>
>
>
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