Window Functions
Tapering the record with a window (Hann, Hamming, Blackman, flat-top) before the DFT removes the edge discontinuity and trades main-lobe width against side-lobe level: narrower main lobe resolves close tones, lower side lobes suppress leakage — you cannot have both at once.
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Tapering the record with a window (Hann, Hamming, Blackman, flat-top) before the DFT removes the edge discontinuity and trades main-lobe width against side-lobe level: narrower main lobe resolves close tones, lower side lobes suppress leakage — you cannot have both at once.
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