Intermediate Lung Sounds Wheeze - Polyphonic Lesson Waveform Anatomy The higher the pitch, the longer the wheeze, the greater the obstruction. Note the absence of any normal vesicular sounds. Skin and Ribs Blended View Lungs Move slider to reveal lungs play pause Table of Contents 1Vesicular - Diminished 2Bronchophony - Healthy 3Bronchophony - Abnormal 4Egophony - e 5Egophony - a 6Whispered Pectoriloquy - Healthy 7Whispered Pectoriloquy - Abnormal 8Wheeze - Expiratory 9Wheeze - Monophonic 10Wheeze - Polyphonic 11Crackles - Early Inspiratory (Rales) 12Crackles - Late Inspiratory (Rales) 13Stridor Quiz 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.