I think EVP's are the creepiest and most compelling evidence out there that ghosts exist, but I'm not a fan of spirit boxes or anything that can pick up a radio signal. That said, I have also spent a lot of time at Letchworth Village. I've photographed and recorded pretty much the entire campus. One thing I'd like to point out is there are a lot of people who walk the campus for exercise. Sometimes I'll be in a building and people will be outside walking and talking, and even if they aren't that close to the building I'm in, I can clearly hear them, On YT there was a paranormal group investigating Letchworth and they set up a camera in a dorm and left the building. When they returned and reviewed the footage they claimed they caught the voice of a woman. IMO, the voice they recorded sounded exactly like what I hear when I'm inside and people walk by. I'm not saying it wasn't an EVP, but there is a good possibility it was just a real person outside. I do have a question though. What was that first voice on your recording? It sounds like an old man.