Heart sounds are mainly the expressions of opening and closing heart valves. Some produced by interruption laminar blood flow as it turns into turbulent flow, which is explained abnormal functioning The analysis phonocardiographic signals has made possible to indicate that normal pathological records differ from each other concerning both temporal spectral features. present work describes desig...

BACKGROUND Although simulation-based teaching is popular, high-fidelity, high-cost approaches may be unsuitable or unavailable for use with large groups. We designed a multiple-choice test for large groups of medical students to explore a low-cost approach in assessing clinical competence. We tested two different scenarios in assessing student's ability to identify heart and lung sounds: by hea...

Heart sounds show chaotic and complex behavior when murmurs are present, containing nonlinear non-Gaussian information. This paper studies ways to extract features from dynamic models. The frequently used describe the underlying dynamics of heart derived dynamical modeling sound signals. study incorporates alongside conventional classifiers in analysis phonocardiograms (PCGs), achieving a signi...

Phonocardiography is a widely used method of listening to the heart sounds and indicating the presence of cardiac abnormalities. Each heart cycle consists of two major sounds - S1 and S2 - that can be used to determine the heart rate. The conventional method of acoustic signal acquisition involves placing the sound sensor at the chest where this sound is most audible. Presented is a novel algor...