I'm less than a mile from the first of 3 tall 3 blade turbines. ( slightly =
south of the direct line of fire in the prevailing south westerly winds ) [=
in north West County Durham, uk ]=0D
=0D
The turbines have been there for about 5 years and I'm still trying to make=
sense of a strangeness in the audio spectrum that often occurs when the wi=
nd is above 35 mph-ish. =0D
=0D
Something subtle is going on. Sometimes I can hear it. Sometimes I can't, =
Sometimes a microphone 'hears' it when my own ears can't.=0D
=0D
Even when I'm a further 3 miles downstream in my favorite patch of woodland=
, where I check out mics and recorders, I sometimes record a very prominent=
low frequency 'lift' in whichever channel is facing the direction of the t=
urbines. If my ears were younger and sharper I might be able to define what=
I mean by 'lift' better. It's not quite a 'target' sound. It's more like t=
here's a problem with my equipment.=0D
=0D
I'll be interested to keep an eye on what smarter audio scientist than me =
can come up with to explain such an odd thing.=0D
=0D
norman.
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