How Google is planning to use ANC earbuds for heart rate monitoring
How Google is planning to use ANC earbuds for heart rate monitoring
Google has revealed its research into audio plethysmography (APG), which will allow heart rate monitoring to be added to active noise cancelling headphones and earbuds through a simple software upgrade. The technology works by sending a low-intensity ultrasound signal through the headphones, which is modulated by the ear canal skin displacement and heartbeat vibrations.
Google has revealed its research into audio plethysmography (APG), which will allow heart rate monitoring to be added to active noise cancelling headphones and earbuds through a simple software upgrade. The technology works by sending a low-intensity ultrasound signal through the headphones, which is modulated by the ear canal skin displacement and heartbeat vibrations.
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Google has revealed its research into audio plethysmography (APG), which will allow heart rate monitoring to be added to active noise cancelling headphones and earbuds through a simple software upgrade. The technology works by sending a low-intensity ultrasound signal through the headphones, which is modulated by the ear canal skin displacement and heartbeat vibrations. 
