Hello everybody, I'd really like to be able to explain what I hear in terms of wavelengths. My question could be split into a few, but I will try to focus on the main issue so it's more simple to answer. Situations in real life: It comes to my mind when I'm in live shows, the loud ones in closed halls, where you get plenty of feedback from the walls and everything else. It continues with putting a set of headphones aside me while it's playing, and me hearing only the high frequency cymbals. Another case is hearing a boomy music leaking out of a car at the street - I think I hear mainly the lower frequencies in that case. At the end I couldn't reach a definite conclusion as to what one should hear louder - highs or lows - at a fair distance from the source. And this led me to posting this question. So yeah I'm basically asking you these questions: 1) Once distanced from a soundsource, what frequencies should I hear louder ? How would you (please) explain it in terms of wavelengths ? 2) At live shows, what frequencies should I expect getting mostly returned from the walls back to my ears ? Thanks a lot Roy P.S. In case I posted this at the wrong forum - please, let me know and if possible also refer me to the right one. Thanks for that.