A new wave of acoustic technology could give vehicles the missing sense that cameras and radar can’t provide. By detecting sirens before they’re visible, picking up the chatter of pedestrians, or even transmitting urgent sounds through a driver’s headrest, researchers are teaching cars to react to the world the way humans do by listening. Unlike optical systems, which need a clear line of sight, acoustic sensors can pick up what’s happening around corners or in crowded streets. That ability could prove essential for autonomous driving, where every millisecond of awareness matters.
Sensors are designed to stand up to rain, wind, and extreme temperatures, with careful placement ensuring accurate pickup even at highway speeds. Testing has taken the car from Portugal to the Arctic Circle to stress the technology in real conditions. To make sure drivers don’t miss critical cues, important noises can also be piped directly into the cabin via the headrest. That means a siren, horn, or warning call is not just detected but delivered right to the driver’s ear, helping them respond faster. The project involves close collaboration with automotive suppliers and manufacturers.
More information:
https://interestingengineering.com/transportation/hearing-car-autonomous-driving-sound-recognition