I'm trying to figure out what is causing the sounds that I'm hearing from planes passing over my house. I'm located approximately 60 miles NW of ATL. The noise I hear sounds like a turbine rapidly spinning up, and then back down approximately 5 seconds after. My theory is that this is from an initial descent, relieving some resistance on the turbine blades, but can't quite find the sound anywhere else. I have never heard this sound prior to moving here to GA a year ago and I have lived near major airports near Newark, Virginia Beach, and several military bases throughout my career. I do not have a recording yet as the planes are not quite visible when this occurs and I also don't hear the approach.
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$\begingroup$ Is the sound, or rather the pitch change categorically the same, or is there variation between each occurence? $\endgroup$– Jpe61Commented Nov 25, 2020 at 20:06
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1$\begingroup$ See also: What makes the swooping noise when a jet flies overhead? $\endgroup$– foootCommented Nov 25, 2020 at 20:29
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$\begingroup$ Is the rapid change in both pitch and loudness? $\endgroup$– Camille GoudeseuneCommented Nov 25, 2020 at 20:32
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$\begingroup$ A recording would be helpful. $\endgroup$– rclocher3Commented Nov 25, 2020 at 23:49
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$\begingroup$ I believe what you are hearing is caused by the doppler effect. physicsclassroom.com/class/waves/Lesson-3/The-Doppler-Effect $\endgroup$– Juan JimenezCommented Nov 26, 2020 at 21:44
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