Question: Write a function for low-pass FIR filters. Don't use MATLAB-Function such as fir1 besides filter! Write your own code for FIR Filters in MATLAB. (Topic:

Write a function for low-pass FIR filters. Don't use MATLAB-Function such as fir1 besides filter! Write your own code for FIR Filters in MATLAB.

(Topic: Digital Signal Processing)

following specifications:

cutoff freqeuncy: f_c= 4000 Hz

transition band: delta_f= 964 Hz

passband ripple: A_p= 0.1 dB

Minimum stopband attenuation: A_s=50 dB

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