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FFT, why my program works but doesn't?

FFT for filtering audio. Frequency domain filtering is mathematically quite complicated. Manipulating the spectrum directly typically results in lots of time-domain aliasing, which I'm guessing is ...
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2 votes

Unstable deconvolution in frequency domain (spurious high frequency component?)

Without seeing your actual data and code it's not easy to debug this. A few things to consider. Dividing spectra requires you to have good signal to noise ratio over the entire frequency range. At ...
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