FFT filter on voice file help please

I have a homework for FFT. I recorded my voice and added matlab. I used FFT but now i need a filter. Can someone help me for this stage ?

Answer 1

[Ridwan Alam]

There are multiple ways you can filter these data. You can use bandpass, high or low pass filters, or any other specific filters: https://www.mathworks.com/help/signal/digital-filtering.html

Or you can use the fft itself to select ffrequencies to keep or delete by yourself: https://www.mathworks.com/help/matlab/fourier-analysis-and-filtering.html