Auscultation is a fundamental diagnostic method for heart disease, noninvasive and inexpensive, but highly dependent on the expertise and experience of the listener. Improved accuracy of diagnosis is usually then performed through further examination using the electrocardiogram, magnetic resonance imaging and the computed tomography scan. Unfortunately, these tools require very expensive investment costs that are only available in large hospitals. This is the main reason for supporting the development of computer-based auscultation technique tools that are cheaper and are able to improve the accuracy and reliability of diagnosis on early stages. If the device can be designed as portable, then it can be used by heart disease patients for daily monitoring to avoid or minimize heart attack accidents. To improve the accuracy of heart auscultation analysis, usually the lung sound must be minimized, or vice versa