Intermediate Lung Sounds Wheeze - Polyphonic 202 Description Polyphonic wheezes are loud, musical and continuous. These breath sounds occur in expiration and inspiration and are heard over anterior, posterior and lateral chest walls. These sounds are associated with COPD and more severe asthma. Listen The patient's position should be sitting. Visualize LessonsVesicular - Diminished.Bronchophony - Healthy.Bronchophony - Abnormal.Egophony - e.Egophony - a.Whispered Pectoriloquy - Healthy.Whispered Pectoriloquy - Abnormal.Wheeze - Expiratory.Wheeze - Monophonic.✓Wheeze - Polyphonic.Crackles - Early Inspiratory (Rales).Crackles - Late Inspiratory (Rales).Stridor.Sign-in to enable progress reports and certificates.