Is it possible to specify number of taps and cutoff frequency independently?

1. How many taps does a FIR filter need?
2. What is the number of taps?
3. What is the significance of cut off frequency?
4. What is optimal method in digital filter design?

How many taps does a FIR filter need?

The minimum phase FIR is a case where more taps could be beneficial, since more taps means that the filter can extend lower in frequency. Since the filter is minimum phase, there is no additional processing delay over an IIR filter. About 4096 taps would be required to flatten my example file.

What is the number of taps?

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What is the significance of cut off frequency?

The cutoff frequency, or cutoff, determines where the signal is cut off. Simpler synthesizers have only lowpass filters. If a signal contains frequencies that range from 20 to 4000 Hz and the cutoff frequency is set at 2500 Hz, frequencies above 2500 Hz are filtered.

What is optimal method in digital filter design?

In the optimal method, the objective is to determine the filter coefficients, h(n), such that the value of the maximum weighted error, is minimized in the pass band and stop band, i.e. over the pass band and stop band. The most dominant of the optimum solution generation algorithms is the Parks-McClellan algorithm.