nguyen_k
This week I spent most of the time reviewing my program because according to the last time I ran the codes, it had way too many extrema in 128 bits (~1 second), which is impossible to be the brain waves frequency. Therefore, I decided to graph one channel only and count the peaks by hand to estimate the frequency. Here is what I got:
From this graph, I then estimated the frequency by counting the peaks by hand like the way I did before. Additionally, I compared each peak, which was actually a local maximum in the list, with the 2 closest values and get the average difference interval in order to set the threshold. According to my counting, the frequency was around 23Hz and the average difference calculated was +- 10:
My next step would be to assess some more data to get a more accurate estimation. As soon as I have a solid number, I will get down to adjusting the coding part.
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