As a consequence of the windowing process, the computed IR is not accurate in the low frequency
range: it is not possible to estimate the frequency response below the reciprocal of the analisys time
interval, due to the time-frequency duality. So, to avoid misleading view, the frequency response plot
shows a dotted line below 200Hz.
To proceed with the FIR filter computation, click “Next” button and the “Calculate FIR” page will be
shown.
FIR Calculation