The listening position for voice resonance is mainly the chest. Because voice resonance is mainly through the vocal folds, such as making a sound or ah sound, the sound is conducted through the trachea, the main bronchus and other bronchial trees, and listened to with a stethoscope in the chest, through the left and right comparisons, to understand which parts of the sound through which the sound is strengthened, and which parts of the sound through which the sound is weakened, and then analyze the understanding of the lungs and the thoracic cavity situation, and to make a preliminary judgment of the lungs and the thoracic cavity of the disease, mainly used for lung disease and thoracic cavity disease. It is mainly used for pulmonary and thoracic diseases. Therefore, the location of auscultation is mainly the chest.