Hey guys. Some questions. So I got my muse a few months ago and didn’t have time to play around with it. I made some spectrogram with muse and the data looks a bit weird.
It seems there is quite some difference between each channels.
To clarify a little, the temperature of the color corresponds to the log(amplitude), vertical axis corresponds to 0-110Hz, and horizontal axis corresponds to time.
The graph is computed with 50% overlapping half sine window of 32 samples, padded to 128 samples before DFT.
The other question is that it’s pretty clear that there are “horizontal lines” that “cuts” the graph into small stripes, does anyone know why?