Where did you hear that "white noise" is easier for a person's ears to locate?,(reply>), No Idea, but I've repeatedly experienced the opposite. Very loud and shrill car and house/shop alarms.<br>Sure, you can hear an alarm, but good luck figuring out where from.<br>The worst was a shopping centre that was mostly closed. (only a few major shops open).<br>A breakin alarm was active in one of the shops, but who knows which one.<br>I actually tried to work it out, and 5 minutes later still didn't have much of a clue.<br>You certainly don't have 5 minutes to figure out which of a dozen trucks is reversing.<br>Sound localisation is important.,(reply>), well it is. It's just physics. A sharp and consistent tone will disperse much less than white noise will when it bounces off an object, meaning that while you can easily hear the noise, it can be difficult to locate it by sound alone. White noise on the other hand disperses almost completely when it hits an object.,(reply>), Just google white noise reversing trucks...