What does timestamp mean?


#1

Good day guys. :slight_smile:

Me and my colleagues are having our thesis/research project about EEG signals and we’re trying to get the alpha, beta and theta waves in an EEG signal.
My question is, what does the timestamp represent? Does it represent the seconds in a recorded EEG?

Please inform us as soon as possible. Thank you. :slight_smile:

Students from Philippines salute you. :slight_smile: Groupmate of user darack007.


#2

Also, what osc path should we use to get alpha, beta and theta waves from? Should we use /muse/eeg or the /muse/elements/fft0,fft1,fft2,fft3? :slight_smile:

Thank you from anyone who’ll reply. :slight_smile:


#3

Hi EdFelicilda,

As I said in this thread (http://forum.choosemuse.com/forum/researcher-forum/3668-newbie-help):

[I]"The Alpha, Beta, Theta, and Gamma power values are provided by MuseIO. MuseIO provides absolute and relative powers for each of the bands, as well as the output of a custom scoring function.

Please take a close look at our documentation for the different OSC paths that MuseIO uses: https://sites.google.com/a/interaxon…paths—v3-6-0

The documentation explains what data is available and what it means.

…[/I]
[I]The timestamps are in seconds since January 1, 1970, with decimal precision down to microseconds.[/I][FONT=inherit][I]"[/I]

So, you don’t need to do anything to extract Alpha, Beta, etc. They are already calculated for you by MuseIO, and output on the paths specified by the documentation, e.g. /muse/elements/alpha_relative etc.
[/FONT]