Last Updated on July 25, 2022 by pg@petergamma.org Good news for Dr. Scott Hardens, PhD. Sound Card ECG: «Conclusion: On the basis of the results of the present study, we suggest that the calculation of HRV values in the time and frequency domains by RR series obtained from the PC-based sound card is probably as … Continue reading Validation of PC-based Sound Card with Biopac for Digitalization of ECG Recording in Short-term HRV Analysis