Most of these people are using gas powered lawn equipment — weed whackers, lawnmowers, leaf blowers, and anything else you can think of and beyond. (For trimming is one measly cedar hedge, one guy uses a chain saw that looks like it's leftover from clearing his grandfather’s farmland. He then hauls out an equally archaic wood chipper for the few scraggily branches he has mutilated. Both produce noise that could easily be mistaken for an ancient Harley-Davidson in desperate need of a tune up.
There are those who make it their life's work finding things to do with the power tools that they have been given as gifts over the years. They've never made an effort to learn how to use this equipment. This means you not only have to listen to them being used, but abused on top of that, and for far longer then the "jobs" being done merit. One particular idiot took three months to rebuild a small atrium off his front door. Most of his work seemed to involve hitting things loudly for extended periods of time with a hammer for no apparent reason except that he couldn't hammer a nail in to save his life.
As if the noise weren't bad enough, the attitude that goes with it is amazing. How can they not realize their constant barrage of sound is disturbing everyone? But if you should happen to point out the fact that the windows of your apartment are rattling because of their lawn mower, they either don't care or take a sort of perverse pride in it.
It might explain why nobody in my neighbourhood is able to talk at a level of anything less then a shout. One family group gathers on their fire escape and shouts the intimate details of their lives at each other. But it doesn't explain why people feel the need to hold conversations by shouting at each other from top floor balconies to the sidewalk across the road.
Don’t they know or care that everybody within a two-block radius can hear every word they are saying? Don't any of these people stop to consider that no one else wants to hear the sound of their voice echoing through their apartment? These same people complain about other people's noise but don't seem to notice they are contributing to the overall cacophony that besets us on a daily basis.