The Dink Network

First thing any expert or amateur ghost hunter/demonologist/psychic/et cetera must do in regards to anything potentially paranormal is to think of a way where evidence or experience can be rationally explained. Logically, one way of debunking this, or giving an explanation for it, is that they recorded near chickens. (As there is no further evidence or visual aspect to it.)

Were I able to download or otherwise acquire a copy of the audio, I'd filter out the background noise and listen to see if there was any obvious anomalous noise that cannot be easily attributed to normal auditory noise.

EDIT: And now that I think about it, chances are, that was your Soundcloud. If you can give me a copy of the original file, I'd gladly remove the noise so that everything else comes in clearer. (The noise being the static-like drone.)

In any case, chances are you're not going to experience any harmful events, as it's most likely a residual haunting, if there indeed is one. If any negative or harmful events transpire, I'd suggest burning sage, which cleanses and area of negative energy, and lining the outside with sea salt, which prevents negative energy from entering easily. (That is, if this is occurring in your own home.)