The recordings were acquired using an Eko CORE or an Eko DUO digital stethoscope (Eko Health, Inc.) from 1 of 6 auscultation locations shown in Figure 1. For the recording positions in (A), the device ...

Each 15‐second PCG, recorded using a digital stethoscope, was processed to generate 5‐second mel‐spectrograms. An additional labeled data set of 196 patients was used for testing. GradCAM++ was used ...