slugSeparation of Respiratory Sound from Heart sound for Asthma Analysis
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2014, Vol 2, Issue 3
Abstract
Heart Sound (HS) interferes with lung sound in the diagnosis of respiratory illness. In the analysis of respiratory disorders, Separation of Respiratory Sound (RS) from heart sound plays a major role. The proposed scheme implements a virtual instrument for removing heart sounds from respiratory sounds. Sound samples are recorded using Electronic stethoscope comprises both HS and RS. RS is separated from the HS for Asthma analysis at the primary stage of the disorder. This scheme involves two main phases namely Respiratory Sound separation and analysis of the resultant RS. The separation of RS involves detection, cancellation, localization and grouping of HS segments, modelling and prediction of RS. The recorded sound is given as output to the HS detection block and the segments of HS are detected using Multi resolution Analysis (MRA). The detected segments are cancelled and localized by the cancellation and localization block. The HS segments are grouped and modelled using Linear Prediction method. The modelled output is RS, presence of asthma is analyzed using the parameters like Mean, Variance and Standard deviation.
Authors and Affiliations
T. Ayesha Rumana, Smitha. M, P. Sutha
Keywords
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