Last Update: 2/24/2015
Origin 7.5's FFT tool pads or truncates the signal to ensure that its size is a power of 2 before FFT analysis. And it does not since Origin 8.0. So sometimes FFT result from a higher version may be different from that in 7.5 when the signal's size is not power of 2.
Please refer to the page for more information.
Keywords:FFT, pad, truncate, 7.5