Marani LPP-480F, Руководство пользователя

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group delay is the derivative of the phase with respect to the frequency).
The graph below shows the phase (wrapped without latency) linear up 10kHz (see the yellow curve)
Let's now describe the user parameters related to the FIR filter generation. Note that, every time a
user parameter is changed, the “Calculate FIR” button at the top left of the screen start blinking,
meaning the FIR filter needs to be recalculated. Once the button is clicked the synthesis algorithm
computes the FIR filter with the new parameters and the corresponding plots are updated.