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Don’t be shocked, but this post actually does have something to do with the science of marketing. A mathematical tool named for its speed just got thousands of times faster. The blistering new version of the fast Fourier transform (FFT) should make compressing audio and video less of a drain on mobile devices. The Fourier transform, which splits a signal into its individual pure frequencies, was devised over 200 years ago but only became practically useful after the development of the FFT, a short cut, 60 years ago. Among other things, the FFT is used in compression algorithms that efficiently store audio and video.
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