Accesible through main menu option Signal tools/Moving average smoothing or
button. Smoothing is the operation that can very often help to extract some useful information from a
noisy signal or indistinct FFT sequence. The overall effect of smoothing is similar to filtering
the lowpass filter.
In SIGVIEW, smoothing is performed by using weighted central moving average method. In the
corresponding dialog you can determine the type of weighting function to be used and its length.
Longer function will provide stronger smoothing effect on the signal.
If you want this operation to be performed on each FFT result after its calculation, you can turn it
on in Spectral analysis defaults .
You can change the smoothing parameters for a smoothing window if you open Edit/Properties
menu option from its context menu.