Ahem .... I got something the objectivists can chew on. Given the complexity, this will probably take them some times. Unless, djones et al ... can possess sonar capability, hearing by itself is not going to give you accurate localization.
Funny thing is there are numerous examples of people having something very much akin to sonar. It generally is referred to as echolocation, and has been the focus of some experiments/studies, scientific-like and everything ( they probably even use voltmeters and stuff ).
One of the most interesting take-a-ways is that in folks who are really adept at echolocation acoustic information is to an interesting extent processed by the part of the brain usually reserved for visual processing ( which kinda sorta means they see with their ears !? )....
And just taking a wee leap sideways from that ....wonder how this process to develop the ability to use echolocation ( like we all have it though some folks have developed a greater ability in that area...blind people, for obvious reasons...) intersects with the learned ability among some in the audiophile community to play the imaging game with our systems ( which requires, at a minimum, good ears,a well sorted system/acoustic environment, ability to focus attention to acoustic cues/detail, and some imagination to make the leap from purely visual/acoustic data processing to some combination thereof that results in imaging...) ...
Bottom line it may well be we all have the ability to play sonar games and we often do when we sit in front of our systems and get blown away by the imaging...
Cheers