A digital stethoscope has an earpiece microphone (4) connected acoustically with flexible tubing to a Precordial Hockey-Puck sensor (1) and connected electronically to a Pro-audio Computer (8) with real-time software to display, control monitoring and record vital signs of a patient undergoing medical procedures. The patient is acoustically isolated from the computer. The user interface can select or de-select optional functional real-time code blocks.