When using EmotivPRO Analyzer, and applying FFT (Fast Fourier Transform), it returns the average power of each frequency band.
BUT…
What is the unit of measurement for that Average Power?
Is it measured in µV or µV^2/Hz, or in dB ?
And, the values… What range shold have? Positive and Negative numbers, or only Positive?
Should one apply a method of normalization after applying FFT ??
