Essential Lung Sounds Coarse Crackles (Rales) - Auscultation Lesson Coarse crackles are also short, popping breath sounds. Compared to fine crackles they have a lower pitch but higher sound volume. Coarse crackles are usually longer in time. Listen The patient's position is seated. Visualize LessonsNormal Vesicular.Diminished Vesicular.Bronchial.Wheezes.Rhonchi - low-pitched Wheezes 316.Fine Crackles (Rales).✓Coarse Crackles (Rales).Bronchovesicular.Stridor.Pleural Friction Rub.Sign in to enable progress reports and certificates.