The file created by Muse-Lab through the recording function provides a time-stamp for each sample. What exactly do those timestamps represent? Are they provided at the hardware level as an exact sample acquisition time? Or are they created when the data hits Muse IO via BT?
In terms of actually doing analysis using the raw data, how are we expected to use the timestamps? Do we assume equal spacing of the samples? Or do we need to actually do all raw data analysis assuming uneven spacing and referencing the timestamps for each sample?
And is the sampling frequency (220hz / 500hz) reliable? In other words, if I took 220k samples would it span 220k seconds?
Thanks for any/all help!