Key result
Digital stethoscope records manikin heart and lung sounds to create a dataset for AI applications.
Why the study?
Heart and lung sounds are crucial for healthcare monitoring, but datasets offering both separate and mixed cardiorespiratory sounds were lacking.
This dataset provides separate and mixed cardiorespiratory sounds from a clinical manikin to support AI and deep learning applications in automated cardiopulmonary disease detection.
Clinical adoption should await real-world validation; leaves open research into AI for mixed cardiorespiratory sound separation.
Heart and lung sounds are crucial for healthcare monitoring. Recent improvements in stethoscope technology have made it possible to capture patient sounds with enhanced precision. In this dataset, we used a digital stethoscope to capture both heart and lung sounds, including individual and mixed recordings. To our knowledge, this is the first dataset to offer both separate and mixed cardiorespiratory sounds. The recordings were collected from a clinical manikin, a patient simulator designed to replicate human physiological conditions, generating clean heart and lung sounds at different body locations. This dataset includes both normal sounds and various abnormalities (i.e., murmur, atrial fibrillation, tachycardia, atrioventricular block, third and fourth heart sound, wheezing, rhonchi, pleural rub, fine crackle, and coarse crackle sounds). The dataset includes audio recordings of chest examinations performed at different anatomical locations, as determined by specialist nurses. Each recording has been enhanced using frequency filters to highlight specific sound types. This dataset is useful for applications in artificial intelligence, such as automated cardiopulmonary disease detection, sound classification, unsupervised separation techniques, and deep learning algorithms related to audio signal processing.
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Chidharth et al. (2026) studied Cardiopulmonary sounds. Digital stethoscope recording was evaluated. A digital stethoscope was used to record a dataset of separate and mixed normal and abnormal heart and lung sounds from a clinical manikin for artificial intelligence applications.
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