Intermediate Lung Sounds Bronchophony - Healthy - waveform Lesson Waveform Video play pause Maneuver:Sitting Position:Chest wall Chestpiece:Diaphragm Table of Contents Introduction Vesicular - 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 Ask the patient to say "99" several times while auscultating the chest walls. Over healthy lung areas, "99" is not understandable. This is because sound is impeded in normal lungs.Compare this voiced breath sound to the recording in the "Bronchophony - Abnormal" lesson.