How to remove noise from heart sounds?

1. What causes the actual noise of a heart sound?
2. Which method is used to hear the heart sounds?
3. Can heart sound be detected?

What causes the actual noise of a heart sound?

Heart sounds are created from blood flowing through the heart chambers as the cardiac valves open and close during the cardiac cycle. Vibrations of these structures from the blood flow create audible sounds — the more turbulent the blood flow, the more vibrations that get created.

Which method is used to hear the heart sounds?

In cardiac auscultation, an examiner may use a stethoscope to listen for these unique and distinct sounds that provide important auditory data regarding the condition of the heart.

Can heart sound be detected?

Usually, physicians use an acoustic stethoscope to detect abnormalities in the heart sound and predict abnormal conditions of the human heart. As the frequency range and intensity of heart sound is very low, doctors are facing problems while detecting the cardiac sound and its abnormalities.