Smooth over [points per division]

Determines how many points are to be computed within each division (octave). You can type a value or chose from the list. If octave smoothing is selected, it gives the number of points within the octave fraction band specified (see Smooth over [octaves]). There are more points at high frequency when plotting on a logarithmic x-axis, but using this method we end up with a constant number of points over the whole frequency range.

If the smoothing type Constant is selected, it gives the number of points within the constant band specified (see Smooth over [Hz]).

If the number is larger than 1, it is the same as doing a sliding window smoothing because the windows will overlap.