The diastolic pressure is approximated based on the amount of blood in the person for his age, calculated from ET. The accuracy may change in the case of blood loss or deficiency of blood due to abnormality. The VTT was analyzed based on the audio and video samples measured together. For every single pulse in the data set, a VTT can be derived. However, the VTT can change on every pulse since there is a continuous variation of pressure in a human throughout the day. By using the proposed method,the systolic pressure was determined with a single VTT value but the probability of erroneous results was high. Thus,