Cardiopulmonary Sounds. For Sharp sounds remember to use your EARPHONES. APP'S GUIDES: This is one among the top application well precise and concise about CARDIOPULMONARY SOUNDS. Why? See Below. CONTENTS: 1-Heart Sound Explanation Along With Typical Example Which Includes. A)- duction. B)-Systolic Murmurs. C)-Diastolic Murmurs. 2-Normal Heart sounds. 3-Normal Split Sounds.