I've been collecting EVP recordings for about five years now, mostly using a decent digital recorder (Zoom H5, cost about £300 originally) and a few apps on my mobile. Nothing earth-shattering, mostly just ambient sounds and the occasional word that might be paranormal or might be pareidolia - you know how it goes.
But I've definitely noticed that winter - particularly December through February - produces better results. More distinct voices, clearer messages, less white noise interference. Could be atmospheric? Could be electromagnetic changes? Or maybe it's just that there's less ambient noise when nobody's about on the dark nights.
Has anyone else experienced this? I'm wondering if there's something about the longer nights or lower temperatures that creates better conditions for recording. I keep meticulous notes on weather, barometric pressure, time of day, lunar phase - but I haven't found a clear pattern yet beyond the seasonal one.