Automatic bio sound detection and classification

• Main Author: Chua, Bor Jenq.
• Other Authors: Li Xuejun
• Format: Final Year Project
• Language: English
• Published: 2010
• Subjects: DRNTU::Engineering::Electrical and electronic engineering::Electronic systems
• Online Access: http://hdl.handle.net/10356/40685
• Institution: Nanyang Technological University

The use of ambulatory devices to detect heart diseases can help to save lives in times of a heart attack. The project investigates the use of the Support Vector Machine (SVM) and the Gaussian Mixture Model (GMM) classifiers to classify sound samples accurately, with the aim of producing an accurate ambulatory device in medical diagnosis. Features of sound data are extracted using the Mel-frequency cepstrum coefficients to be used in machine learning. Two of the top classifiers used in data mining technology today are the SVM and GMM. The SVM classifier makes use of a linearly separable hyperplane to classify data into different classes, while the GMM works by using a probabilistic model for density estimation, using probability density functions. This report investigates the accuracy of manually collected sound samples by running the programs of SVM and GMM through the use of Matlab.