This paper presents an automatic detection system for the classification of phonocardiographic (PCG) signals using 4 standard auscultation areas (one of each cardiac valve) for heart murmur diagnosis. The database of 4-area PCG records belongs to the National University of Colombia. A set of 50 individuals were labeled as normal, while 98 were labeled as exhibiting cardiac murmurs, caused by valve disorders. With the help of medical experts, 400 representative beats were chosen, 200 normal and 200 with evidence of cardiac murmur from 4 different areas of auscultation.