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FFT of waveIn audio signals.zip
The Fast Fourier Transform (FFT) allows users to view the spectrum content of an audio signal. The FFT code presented here was written by Don Cross though his homepage appears to have subsequently been taken down. Rather than explain the mathematical ...
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AGuideToTheFFT.zip
GENERAL DESCRIPTION
％ In the following, temporal signals will be characterized by
％ lower letters and the Fourier Transform with capilats letters:
％ x(t) === FT ===> X(f).
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cv.rar
This function spatially filters an image, using the Fast Fourier transform and a user-supplied frequency filter function. The filter must be real (amplitude only) and bilaterally symmetric.
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