Standard headphones can determine you by your distinctive ear canals
Getty Images/iStockphoto
Headphones can be purchased with built-in microphones, touch-sensitive buttons, movement sensors and even heart rate displays. But researchers have discovered a strategy to carry all these options to any current pair of ordinary headphones no matter age or value. The method might replicate the benefits of sensible headphones with out the price and environmental impression of manufacturing new gadgets – and they might be used to listen in on a dialog or confirm the identification of the wearer.
The tiny audio system inside headphones convert electrical indicators from a smartphone or laptop computer …