On 10 Jul 2009 04:14:44 GMT, Blanche wrote:

Returning to the original topic....I live 5 miles due north of a very
busy GA airport,

Harstfield? Atlanta Georgia?

directly under the way-out-there approach to 17.
Strangely enough, the only traffic that bothers me is the police
helicopter as it rushes over my house to wherever...

Guilt.

But, I also live in a city environment where it's rarely and truly
quiet, there's always some ambient noise that intrudes inside the
house.

That's Atlanta, I have been there many times.