The Acoustic Shadow: Modern Warfare The military acoustic shadow refers to a phenomenon where sound waves, typically from gunfire, explosions, or other loud noises, are blocked or deflected by terrain, structures, or weather conditions. This creates areas where the sound is muffled or inaudible, even though the source of the noise is close. During wartime, these shadows can have tactical significance, as troops in the acoustic shadow may be unaware of enemy movements or artillery fire, leading t