An interactive demonstration of FFT properties showing the relationship between a sinusoidal time-domain waveform and its frequency-domain spectrum. Includes concepts such as aliasing, effect of increasing array size on frequency resolution, spectral leakage, and windowing as a way to reduce spectral leakage.
You can get the LabVIEW VI that you see in the video at the NI Developer Zone Community: http://decibel.ni.com/content/docs/DOC-28042; see the attachment at the end of the document.
