Hi Folks!
I've created a saturation/overdrive effect. It's based on Miller's E05.Chebychev example in Pd, and I've "tuned" it by ear through experimenting with different transfer functions. It's cheap and dirty, but does the job!

Play with it, hack it, enjoy! All feedback welcome!

James
saturation~.pd
saturation~-help.pd

So, I've updated the patch. I've approached it a little more theoretically and implemented some upsampling, butterworth filters, and changed the transfer function in the table to retain wave phase information fidelity (better) and generally produce a "smoother" sounding saturation effect.

As with before, play with it, hack it, enjoy!
saturation2~.pd
saturation2~-help.pd

@formuls This is great man - thanks a lot for sharing.

Great job, thanks for sharing!

@lead @anibalzorrilla Thanks! Glad you've found the patch useful! I'll be posting more when I get round to it!

what i really like doing with distortion/saturation effects is sending the bass through unharmed.

here is that same patch with a crossover for separating the bass and high end.

saturation2~-help.pd saturation2~.pd

@mod This is very nice! I can see a lot of applications beyond the saturation patch, so will definitely be playing around with this. Thanks!

Hey, I tried adding your saturator to my patch and it worked well. Then I tried adding it 88 times to my piano keys and it takes 5 seconds to play anything, which is just a bleep. This is happening even though I'm playing only one note out of 88 so it shouldn't even take up CPU.

Any ideas how to make it scale properly?

https://bitbucket.org/RichardJECooke/prepared_digital_piano/commits/tag/failing_formuls_saturator

Ah, never mind, I see there's [cyclone/overdrive~] which does the same thing and it works fine 88 times. Thanks.