Deep Learning, Artificial Intelligence, Heart Sounds, Sound Classification, Cardiovascular Disease.
were calculated as 2 features. The energy ratios of state S1 to the S2, systole and diastole states are also obtained respectively. So, for state S1, 8 features were extracted. Similarly, 6, 4 and 2 features for the S2, systole and diastole states, respectively, are extracted. 1.4. Higher-Order