Google looks to ultrasound to monitor heart rate through ANC headphones

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Google researchers have developed a system that can transform any TWS ANC wearables into heart rate monitors via a software update

Smartwatches that can monitor a wearer's heart rate use light pulses to detect changes in blood volume. But research from Google proposes using ultrasound from an earphone's speaker driver to look for tiny deviations in the surface of the ear canal.

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Category: Wearables, Technology

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