Cheap non-linear zero-delay filters (in: DSP and Plugin Devel…)

By: mystran
5 Jun 17:43

I’ll expand on this a bit… you probably don’t want the conductance to get too high (ie. something like sinh() would just explode), rather what you want to do is keep it close to 0 below the knee, then ramp it up to some suitable value (let’s say 1 for simplicity).

As a starting point, a reasonable (and very cheap, but still somewhat reasonable sounding) non-linearity “conductance function” here would be (x^8)/(1+x^8) which keeps the conductance zero for low amplitudes and then smoothly ramps …

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