NPR News: Army's Smart Earplug Damps Explosive Noise, But Can Enhance Whispers

Army's Smart Earplug Damps Explosive Noise, But Can Enhance Whispers
Many combatants return from the battlefield with hearing loss. The U.S. Army has begun deploying a "smart earplug" system that can protect hearing without blocking crucial sounds.

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June 3, 2016 at 03:43PM