That's okay. I have a thick skin. But when you are in what amount to acoustic "canyons", you have no assurance that the first sound is even audible. I gave you a live example of that, which you seem to think means nothing. The issue is not I.Q. It has to do with perception of sound direction. There is also the problem that long-distance propagation of high-amplitude sound waves leads to "crackling" due to non-linear effects (which is why rocket launches sound the way they do at a distance). But, hey, if someone has the sound signals and the locations, it would be interesting to see what they deduce.