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3rd Party Plugins - (fb2k) / Re: foo_vis_spectrum_analyzer
Last post by TF3RDL -Don't we forget about the "incorrect" looking sinc/Lanczos FFT interpolation for lower frequencies part in the default FFT mode? This is the most obvious discrepancy between my own CodePen project " Frequency bands spectrum analyzer using either FFT or CQT" and your fb2k visualization componentBTW, here's the spectrum of a 50Hz currently looks like using this component:
Also, I've fudged around with "lanzcos()" function on my spectrum analyzer project coded in JS to remove the multiplication by "alternating pattern" (which I meant by flipping a sign of both real and imaginary parts of FFT bins on every odd index) and it is not the same as this image above: