Hello everybody

I am Jungryul Seo who is researching on context-aware computing in graduate school, South Korea.

I have a little bit stupid question.

I collected EEG data using Muse 2014 version for researching and used calcuated value such as Alpha Absolute Power which were calcuated by Muse until this time.

Ahâ€¦ today my supervisor advised me to calculate some features which Muse didnâ€™t calculate.

In order to do that, I need to handle raw_fft0, 1, 2, 3 data for calculating.

In my best understanding, raw_fft0, 1, 2, 3 data are seems to be a result of FFT.

The above attached figure is a screenshot of captured data.

As we know, Delta frequency range is 1Hz ~ 4Hz. And, Muse 2014 frequency resolution is 0.86Hz.

Following to Muse Available data document, they said â€śThe absolute band power for a given frequency range (for instance, alpha, i.e. 9-13Hz) is the logarithm of the sum of the Power Spectral Density of the EEG data over that frequency range.â€ť

Following to document content, I treid to calculate Delta band absolute power, but I could not get same result of Muse calculate value.

I am confusing whether I did a mistake, misunderstanding or missing something.

Would you please anyone advise me about my problem?

Thanks aforehand

Jungryul Seo