Militaries have worked for decades to develop technologies that simultaneously protect infantry soldiers' hearing and aid in battlefield communication. However, these advanced Tactical Communication and Protective Systems (TCAPS) - earmuffs or earplugs with built-in microphones allowing active hearing protection - don't help if a soldier takes them off to assess the location of incoming gunfire. Now a French researcher has developed a proof of concept that uses the microphones in a TCAPS system to capture a shooter's acoustic information and transmit this to a soldier's smartphone to display shooter location in real time.
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