LowPass/HighPass filter settings

This group contains the settings if the type LowPass or HighPass has been selected as shown below.

 specifies the cut-off frequency of the filter. Any frequency may be typed or selected from the list of standard 1/3-octave frequencies.

 Specifies the filter order. The order is selected from the list and has the range 1-14.

 Specifies the filter type. You can select from the two types shown below

Select the type Butter Forward if you want a traditional filter function. If you select Butter Forward/Reverse the filtering will be performed once forward and once backwards. Thus there will be zero phase distortion and the filter order will be doubled.