Atrial Septal Defect - Repetition Drill Supplementary Training Course requires enrollment in Auscultation-Essentials or -Advanced Unlock quizzes, lessons and more. Sign Up Listening Tips Systole: Diamond shaped, brief, early murmur.S2: Fixed splitting.Diastole: Diamond shaped, brief, early murmur. Supine Diaphragm Listen for 2-3 minutes Patient Normal Speed play pause Simulated Full Speed play pause Case #