The FFT function performs a Fast Fourier Transform (FFT) to convert the input payload between time and frequency domains.
The Function can perform the transform in either direction: forwards or backwards.
From a time-domain representation to a frequency-domain representation.
Use this option to determine how much of the signal lies within each frequency band across a range of frequencies
From a frequency-domain representation to a time-domain representation.
Use this option to determine how a signal changes over time, given the distribution of the frequencies of its component sine waves.