Figure 1
From: Multiscale analysis of heart sound signals in the wavelet domain for heart murmur detection
(a) Locations of the heart sound recordings: Pulmonary Valve (PV), Tricuspid Valve (TV), Aortic Valve (AV), and Mitral Valve (MV); 1 = right second intercostal space; 2 = left second intercostal space; 3 = mid-left sternal border (tricuspid); 4 = fifth intercostal space, midclavicular line (the image is taken from23) and (b) a sample heart sound recording at Mitral Valve (MV) point.
