Audio-based Sniper Source Locator

Basically, this idea is a sort of elastic net that can be stretched over a helmet that contains a connected network of perhaps as few as 6 or 8 audio sensors. A small processing unit with a speaker on it goes inside the helmet. Once activated, the unit goes into 'listen' mode, wherein it begins listening for abrupt loud sounds matching the pattern of a rifle shot. Once detected, it uses the same basic techniques that our brain does for locating sound using the interaural time difference measured between the sensors. Since it has sensors side to side as well as up and down, it could determine a source by this method not just in general direction, but possibly in vertical position as well (high or low). The unit would announce the sound source with a 360-degree bearing and 180-degree 'mark' notation (noting vertical elevation or declination, e.g. "180-Mark-20" would indicate a source directly behind and 20-degrees elevation) relative to the position of the helmet itself to give soldiers under fire a quick reference to help them locate the source of sniper fire. I'm thinking it could help give an initial fix of an enemy in the case of an ambush and in the event that the source of fire could not be located during a firefight, a soldier could raise a so-equipped helmet into the line of fire and any subsequent shots could be announced by the unit.