Abstract: This invention is based on the premise that every human or animal heart has a unique acoustic signature and that this signature has a statistical norm for each species (i.e. human, dog, cat, horse, pig, etc.). Further, a deviation from this statistical acoustic signature norm, is an indication of a cardiac abnormality or disease. This biophysical model gives rise to a diagnostic system by which a patient's heart sound signature can be compared to known abnormal heart sound signatures to provide early detection of cardiac morbidity on a non-intrusive basis. This invention is for the method, apparatus, and system used to implement this process. The technique, henceforth referred to as Cardiometric Spectral Imaging, is the non-invasive method and system from which 3D contours are derived from time-frequency analysis of the heart sounds (S1 thru S4) signatures individually.