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Table 1 Heart Sound Types in the Training Set

From: A framework for automatic heart sound analysis without segmentation

Heart Sound Type Number of Files
Normal 12
Third Heart Sound 4
Fourth Heart Sound 3
Ejection Sound 2
Systolic Click 2
Summation Gallop 1
Opening Snap 2
Split S2 4
Aortic Regurgitation (m) 6
Aortic Stenosis (m) 6
Mitral Regurgitation (m) 6
Mitral Stenosis (m) 5
Pulmonary Stenosis (m) 4
  1. This table lists the type of heart sounds that were used in the experiment. The (m) indicate the heart sound is a murmur.