Sensing Beyond Light: Why APG Changes the Game for in-ear Sensing

For years, photoplethysmography (PPG) has been the default way of introducing biosensing into consumer devices. It started on the wrist, made its way into earbuds, and today it powers many of the health features that users are beginning to expect.The principle is straightforward. Shine light into the skin, measure how it reflects, and translate that… The post Sensing Beyond Light: Why APG Changes the Game for in-ear Sensing appeared first on USound.