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Normal heart sounds provide an indication of the general state of the heart in terms of rhythm and contractility. Any cardiovascular abnormality introduces additional sounds, and murmurs that changes the temporal nature of the acoustic signature. Such variations provide vital information in diagnosis of cardiac disorders. However, at the time of signal acquisition, the heart sound gets mixed with...
This paper presents the acquisition of heart sound signals and its separation from lung sounds based on the adaptive filtering technique. After signal acquisition, normal linear filtering techniques is not capable separated the two sounds, as both the sounds overlap in the spatial as well as temporal domains. Because of the signal tracking and noise elimination capability of adaptive line enhancer...
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