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Vocal biomarker startup Sonde has been quietly plotting a way to make tracking respiratory and mental health as simple as chatting to a smartphone voice assistant.

The Boston-based company, which was founded in 2015, has raised $19 million for its technology that uses brief voice recordings to reveal the progression of health conditions. On Thursday, Sonde announced a new partnership with chip manufacturing giant Qualcomm that could potentially bring the technology to millions of smartphones, which could prove a crucial test of whether its tech is ready for prime time.


Sonde’s technology — based on more than 1 million voice samples from 80,000 people — uses subtle characteristics of voice collected for this purpose to determine that you may have a medical condition. It claims the technology can be used to detect symptoms of chronic obstructive pulmonary disease, asthma, and Covid-19, as well as characteristics of what it calls “mental fitness.”

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