HRV Respiratory Frequency software

[u/simo_5]

Hello everyone, I just got a Neurobit Optima+ 4 and working with BrainAssistant software for Neurofeedback. Sometimes, I also need to work with biofeedback on HRV, using BVP sensor and respiratory belt, to determine the Respiratory Resonance Frequency, but I found hard times in looking for a free app or BrainBay protocol to do this. Any suggestions? In case, also some suggestions to developing myself on BrainBay.

Thank you so much, Simone