"DC blocking" filter using FFT->iFFT? (in: DSP and Plugin Devel…)

By: Fender19
29 Nov 19:18

It’s an “overlap and add” FFT->iFFT process. As you suggest, perhaps removing the contribution of the DC bin (by setting it to zero) breaks the “foundation” of the signal – like removing the ground wire in an electronic circuit – thereby creating randomness in the iFFT rather than simply removing any DC offset, IDK.

So then, is it even possible to create a true DC blocking filter (not just HPF) using an FFT->iFFT?

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