Average FFT (Amplitude)

Hello

I calculate the overall FFT using the Fourier Transform extension and set the mode to "average". How is the average calculated exactly (if not block-wise)?

Thanks in advance for your response.

Dear Niklaus,

this two pages on Pro training should answer the question:

http://www.dewesoft.com/pro/course/spectral-analysis-using-the-fft-29?page=14
http://www.dewesoft.com/pro/course/spectral-analysis-using-the-fft-29?page=18