Thanks for your detailled answer and those pointers, I appreciate this. I am using phonocardiograms (PCG) not ECG but the processing is quite similar. In my ca

Thanks for your detailled answer and those pointers, I appreciate this. I am using phonocardiograms (PCG) not ECG but the processing is quite similar. In my case I record PCG with ultrasound Doppler but a mere microphone could do the job as well. I think I went further than detecting the heart's rate and variability, as I try to recognise each heart sound (S1 ... S4) inside a beat and I developped a technique for having a beat signature in order to apply ML on the sequence of beats with HMM. This beat signature technique could certainly be applied to ECG. It could probably even be used for any series of events. However my problem is not technical, it is about raising awareness, getting help (including resources) and get strategic advising.