The Matlab scripts in waterfall_FFT.zip calculate the Waterfall FFT of a time history.
The main script is: waterfall_FFT.m
The remaining scripts are supporting functions.
The scripts also have options for spectrogram and contour plots.
Here is another script useful for tracking sine sweeps: sine_sweep_spectral.m
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See also: Fourier transform
A Python Waterfall FFT script is posted at: Python Fourier Transform Page
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Please let me know if you have any questions.
Tom Irvine
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I want to make a 3d model from the waterfall diagram of a sound file and that’s how I saw this. Can you point me to a direction or source to do this?
You need to first convert the sound file into ASCII text format.
I will show you how to do this if you send me your sound file.
Tom Irvine
Email: tom@vibrationdata.com