Noise-cancelling headsets worn by soldiers can reveal the position of a sniper after a single shot

Locations of enemy snipers shooting at troops may soon be revealed instantly on the smartphones of the ambushed troops. Cutting-edge audio technology is being developed to use microphones in the ears of the soldiers to track two notable noises from a bullet - supersonic air in front of the bullet and the blast as it leaves the muzzle. Technology is being developed to use these two sounds to trace the original location and reveal where it was fired from. The data and location will then be relayed to the handset of the beleaguered troops to help them identify and neutralise the threat. Audio experts that developed the technology say it builds on existing technology and could be employed on the battlefield in just two years.