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Heart sound stethoscope is one of the effective ways to assess the cardiovascular diseases. In this paper, an electronic stethoscope, which is based on embedded processors and Bluetooth transmission, is designed to fulfill the shortages from the auscultation. The portable device can play heart sound in real-time with or without earphone after signal collection, signal preprocessing and power amplification...
Human heart sound signals has the characteristics of strong noise, slight signal, strong randomness and vulnerability to outside interference. De-noising of heart sound signals, therefore, forms the primary basis for achieving non-invasive diagnosis of coronary heart disease. This paper proposes the wavelet Transform method for de-nosing heart sound signals, which has yielded satisfactory results...
Human heart sound signals has the characteristics of strong noise, slight signal, strong randomness and vulnerability to outside interference. Accordingly we design a heart sound detection system based on the new XH-6 sensor to collect the slight heart sound signals, to display in real-time and to save the phonocardiogram. Measurement on different individuals shows that this detection system meets...
Heart disease is a major cause of worldwide morbidity and mortality. Properly performed, the cardiac auscultatory examination (listening to the heart with a stethoscope) is an inexpensive, widely available tool in the detection and management of heart disease. Unfortunately, accurate interpretation of heartsounds by primary care providers is fraught with error, leading to missed diagnosis of disease...
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