Auscultation (based on the Latin verb auscultare “to listen”) is listening to the internal sound of the body during a physical examination via stethoscope. Heart auscultation, is one of the most basic process of interpreting the sounds produced by the heart, is a fundamental tool in the diagnosis of cardiac disease. It works as the most commonly used technique in primary health care and in situation, where sophisticated medical equipment is not available. The invention of the stethoscope resulted in, without precedent, the most widely spread diagnostic instrument in the history of biomedical engineering. The stethoscope has been invented over the years, but the fundamental technology remains the same. Heart murmurs are heart sounds produced