Acute Pericarditis Patient Normal Speed play pause Patient Half Speed play pause Simulated Full Speed play pause Sitting leaning forward Diaphragm Listening Tips S1: Rubbing, scratchy sound. Systole: Rubbing, scratchy sound, usually loudest during systole.S2: Rubbing, scratchy sound. Diastole: Rubbing, scratchy sound. Auscultation Areas Aortic Pulmonic Erb's Point Tricuspid Mitral Breath Sounds All Sounds