What is the difference between the Hermitian FFT and DFT? Particularly in Python, there are two functions
numpy.fft.hfft(signal) vs numpy.fft.fft(signal)
What I simply could find out is: The Hermitian has to do something with symmetry and needs 50 times longer to calculate, while producing a 'slightly' different result than the 'discrete' FFT. (tested on an audio file of machinery sounds and length of 1.5 sec).