I followed the instructions from Ben Walker to smooth the cut-off sweep (const. value module through low-pass filter to fmod) but I don't know how I can modulate the cut-off value from inside the patch (lfo or adsr), since there is no modulation input in the chain... Any idea? Thanks!
you can put mixer (e.g. mix4) after smoothing lowpass filter, and connect smoother, lfo and envelope to it.
then you will have smoothed midi control and unafected modulation.
you can put mixer before smoother, then all modulation will be afected by it