How to determined the cutoff frequency of a IIR or FIR

1. What is cut off frequency in FIR filter?
2. How do you calculate IIR or FIR?
3. What is frequency response of IIR filter?

What is cut off frequency in FIR filter?

Calculate the filter coefficients for a three-tap (number of coefficients) FIR lowpass filter with a cutoff frequency of 800 Hz and a sampling rate of 8000 Hz using the Fourier transform method.

How do you calculate IIR or FIR?

If the impulse response of the filter falls to zero after a finite period of time, it is an FIR (Finite Impulse Response) filter. However, if the impulse response exists indefinitely, it is an IIR (Infinite Impulse Response) filter.

What is frequency response of IIR filter?

Infinite impulse response (IIR) filters are based on analog filters, where the frequency response is defined by both poles and zeros. Finite impulse response filters, in contrast, only have zeros. The presence of poles in the IIR filter causes the impulse response to be infinitely long.