Alton hum wind not a factor
I have studied the wind over the past month. It does not seem to matter what the intensity or direction. It is there on calm nights, rainy nights, windy nights.
Not an asthmatic church organ, more like a really bad electronic imitation of one. The pitch ranges from Low c to Low f (most likely overtones from a much lower pitch) and varies in intensity. I feel vibrations from it.
Did not think of telephone poles. You are right, it is very hard to find a source.
One article mentioned that 2 % of the population can hear it. Lucky me!
Anyone else out there with keen hearing?
|