A Heart Sound Acquisition and Analysis System

This paper focuses on a heart sound acquisition and analysis system for in-home use of heart condition monitoring. The acquisition board is comprised of a transducer and the processing module, which is used to detect and send heart sound signal to PC via USB interface for heart sound analysis. The analysis software identifies normal and abnormal heart sounds, and provides an easy understanding graphical representation. Both normal and abnormal heart sounds are used to verify the validity of this system, and the result shows the system can discriminate normal and abnormal heart sounds. It is envisaged that the system can eventually be used for in-home use of heart condition monitoring that even inexperienced users are also able to monitor heart condition easily.