Yeah actually been noticing this too and it got me thinking. I do most of my EVP work out in the Dales and the last few sessions have been genuinely weird in a good way - responses coming through cleaner and louder than usual, less white noise bleeding over the top of them.
Not sure if it's the solar activity messing with the EM field or what but the timing lines up. I've always thought geomagnetic disturbances could affect whatever medium allows EVP to work in the first place, never had solid evidence for it personally until now though.
Anyone else keeping a log of their sessions with dates? Would be worth cross referencing against the K-index readings from last month to see if theres an actual pattern here. Feels like the kind of thing that could be properly documented if enough of us compare notes.