Deep Learning, Artificial Intelligence, Heart Sounds, Sound Classification, Cardiovascular Disease.
for filtering. Downsampling to 1000 Hz is performed. Each audio file was segmented into 2-second increments with a 50% overlap. 1.2. Second-Order Spectral Analysis It is claimed that MFCC and wavelet are low-order feature extraction methods. Second-Order Spectral Analysis is used in Bispectrum +