i want to obtain the cardiac sound characteristic waveform proposed in the paper available at following link
https://www.researchgate.net/publication/51994793_Comparison_of_Envelope_Extraction_Algorithms_for_Cardiac_Sound_Signal_Segmentation
the equation is: C1Y2(n)+C2Y1(n)+C3Y(n)=X(n), where X(n) is input discrete signal.
Article Comparison of Envelope Extraction Algorithms for Cardiac Sou...