Does anybody know how to calculate HRV in BrainBay? There is an excellent design to measure heart rate: Heart rate detection in BrainBay
I want to extend it to calculate HRV, but I can’t figure out how to measure the interval between heart beats. In that design mentioned above the threshold element perfectly separates heart beats from noise and draws each beat on the graph. There should be some way to measure the time distance between each peak.
This site explains a little bit about HRV: http://www.megaemg.com/knowledge/heart-rate-variability-hrv/
The image below illustrates what I want to do. I want to map hearth beats to intervals :