Deep Learning, Artificial Intelligence, Heart Sounds, Sound Classification, Medical.
section. Figure 1f also shows the spectrum of a PCG. 2. Feature Extraction and Learning 2.1. Overall Workflow Two different types of features: MFCCs and DWT. To classify these features authors used SVM, centroid displacement based KNN and DNN as classifiers. 2.2. MFCC and DWT Features MFCC and DWT