ABSTRACT
Heart sound is reflection of the mechanical movement in heart and cardiovascular system, which contains the physiological and pathological information in each part of heart and their interactions. Before cardiovascular disease can generate clinical and pathological changes, there are diagnostic information in heart sound such as noise and distortion. Thus, we can prevent and find disease before it occurs. In recent years, the cardiovascular disease rate is higher and higher. The efficient collection and processing of heart sound data is the basis of heart disease detection. Currently, heart sound signal recognition is a hot research both in China and abroad.
