A wearable multi-modal acoustic system for breathing analysis.

Chronic obstructive pulmonary disease (COPD) is the third leading cause of death worldwide with over 3 × 10 deaths in 2019. Such an alarming figure becomes frightening when combined with the number of lost lives resulting from COVID-caused respiratory failure. Because COPD exacerbations identified early can commonly be treated at home, early symptom detections may enable a major reduction of COPD patient readmission and associated healthcare costs; this is particularly important during pandemics such as COVID-19 in which healthcare facilities are overwhelmed.