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 a processing module, which is used to detect and send heart sound signals 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 of analysis results. Both normal and abnormal heart sounds are used to verify the validity of the system, and the results show the system can discriminate normal heart sounds from abnormal ones. It is envisaged that the system can eventually be used for in-home use of heart condition monitoring where even inexperienced users are also able to monitor heart conditions easily.