All around the world there are various diseases acquired by human beings. These diseases are of various kinds and it affects almost all parts of the human body. Heart diseases are nowaday's becoming very painstaking part that needs to be taken much care. The major part of solving such problems involves a considerable amount of work to identify the disease. As the heart is the most complex and delicate structure of the human body, it is very difficult to deal with it physically. The area of biomedical signal processing is vast and very useful to accurately analyze and detect the disease. We calculate the normalised root mean square of the detailed coefficients at each level and threshold it in order to detect the murmur of heart sound signals. The result of this method clearly illustrates the detection of the main components S1, S2, S3, S4 Pathological murmurs and the identification of the disease.