When we’re coming down with a cold or are feeling a bit stressed, or perhaps even exhibiting the first symptoms of COVID-19: minute changes to our voice are often one of the first indicators that something is wrong. These vocal biomarkers are often beyond what a human can detect: but what if an app on your phone could? Health reporter Michelle Fay Cortez recently spoke to David Liu, CEO of Sonde Health, which has released an app that uses a person’s voice to detect early symptoms of respiratory illnesses, including COVID-19. She explores what vocal biomarkers can tell us.
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