So  but the thing is that you have to estimate the SF from the noisy spectrum , what you have. So you estimate the NF from the initial noise portions and then you subtract that from the current noisy spectrum to get an estimate of the SF. So sometimes that becomes zero because you do you don't have a true estimate of the noise. So the f filter will have like sometimes zeros in it
Mm - hmm.
because some frequency values will be zeroed out because of that. And that creates a lot of discontinuities across the spectrum because @ @ the filter. So , uh , so  that 's what  that was just the first stage of Wiener filtering that I tried.
So is this , um , basically s uh , similar to just regular spectral subtraction ?