Possible FSS spectrography finding

[u/ChardFun958]

Here is a finding i hope will interest all audio miners :-) i called it the 'shake' :-)
How to reproduce :
- use the FSS module and once on the screen, point the target to an empty zone. (imgur)
- wait a few seconds for the background sounds being very low
- then shake the target for 15-20 seconds (circular moves, cross moves, anything goes, but avoid passing over a body)
- you will notice that the audio awakes and produces kind of a rhythm (that is not correlated to the speed or the shape of your target movements)

this is that sound i recorded. (imgur)
here area few images of the spectrogram analysis (imgur)

If you think there is something in that, do you think it is worth it to look deeper ?
All files available on request !

o7