Research Article

PCG Classification Using Multidomain Features and SVM Classifier

Table 4

Summary of cepstrum-domain features.

Feature indexFeature namePhysical meaning

1-13Cepstrum coefficientsCepstrum coefficients of a PCG recording
14-26Cepstrum coefficientsCepstrum coefficients of jointed S1 state
27-39Cepstrum coefficientsCepstrum coefficients of jointed systolic state
40-52Cepstrum coefficientsCepstrum coefficients of jointed S2 state
53-65Cepstrum coefficientsCepstrum coefficients of jointed diastole state