  Cardiovascular diseases are one of the leading cause of death in today's
world and early screening of heart condition plays a crucial role in preventing
them. The heart sound signal is one of the primary indicator of heart condition
and can be used to detect abnormality in the heart. The acquisition of heart
sound signal is non-invasive, cost effective and requires minimum equipment.
But currently the detection of heart abnormality from heart sound signal
depends largely on the expertise and experience of the physician. As such an
automatic detection system for heart abnormality detection from heart sound
signal can be a great asset for the people living in underdeveloped areas. In
this paper we propose a novel deep learning based dual stream network with
attention mechanism that uses both the raw heart sound signal and the MFCC
features to detect abnormality in heart condition of a patient. The deep neural
network has a convolutional stream that uses the raw heart sound signal and a
recurrent stream that uses the MFCC features of the signal. The features from
these two streams are merged together using a novel attention network and
passed through the classification network. The model is trained on the largest
publicly available dataset of PCG signal and achieves an accuracy of 87.11,
sensitivity of 82.41, specificty of 91.8 and a MACC of 87.12.
