Detection of Atrial Fibrillation Through Voice Signal Processing

Investigational, software-only device that acquires short voice samples during automated phone calls and analyzes cardiopulmonary signals to estimate heart rate (HR), heart-rate variability (HRV), and rhythm status (regular vs irregular). In this study, three calls are initiated via the Vital Audio web platform (pre-, post-cardioversion, and 1-month follow-up). Results are available only to study staff and are compared with ECG obtained at the same time points. The device is used for data collection/assessment only and does not guide clinical care. IDE: G230147.