Fig. 10From: Localization and classification of heart beats in phonocardiography signals —a comprehensive reviewEMD-based low-, mid-band, and high-frequency extraction of a sample S1 beat.a S1 heart beat signal extracted using rectangular and hamming window.b S1 heart beat: high-frequency component extracted using EMD transform. c S1 heart beat: mid-band frequency component extracted using EMD transform.d S1 heart beat: low-frequency component extracted using EMD transformBack to article page