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Strange noise in recording (1 Viewer)


Active member
Hello! Testing the new Zoom H5 today, I find a noise that I don't know why. I attach an audio where you can hear that noise that occurs, and that you can hear well in 00:04, 00:07, 00:16, 00:28...
Why does that noise sound?


  • primilla.mp3
    977.9 KB · Views: 0


New member
I'm thinking it might be the flight of the bats as it was getting dark... ?
Yes, they sound like bat wing flaps. I have similar wide-spectrum flaps in my Audiomoth recordings and, in those rare cases I have recorded ultrasound, it is associated with flaps. To get flaps the bat of course needs to be quite close to the recorder.

paranoid numanoid

Registered User
It sounds very like a bird call, with the quality of a thrush (sounds like a song thrush alarm call starting up, although much shorter and not developed), but without any location information it's hard to give that context.

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