I want to design a low pass filter without any toolboxes, only using fft. My plan is, that i read a wav file into matlab, then i fft it and i reload into a 1D vektor. I have to zeroing for example the first 100 elements. Then ifft it. Unfortunatelly doesnt work. Anyone can help me in the m code or any idea how can i do it?
MATLAB: Design a filter using only fft
fft
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