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Made the mistake of trying to look up "Fourier transform." This is why I was a liberal arts major. Ouch. bfv, do you have a background in audio engineering? Or is this just kind of a "no duh" for anybody w/ physics/engineering/computer background?
user-inactivated · 3567 days ago · link ·
It would be an obvious thing to anyone who studied signal processing. I haven't done much with audio.
The Gimp has FFT/inverse FFT filters, I have no idea whether following these instructions will result in Audacity actually interpreting the image as the equivalent audio signal though.