It’s often easy to tell when colleagues are struggling with a cold — they sound sick. Maybe their voices are lower or have a nasally tone. Infections change the quality of our voices in various ways. But MIT Lincoln Laboratory researchers are detecting these changes in Covid-19 patients even when these changes are too subtle for people to hear or even notice in themselves. By processing speech recordings of people infected with Covid-19 but not yet showing symptoms, these researchers found evidence of vocal biomarkers, or measurable indicators, of the…
