Never done much EVP work myself but I've been looking into it lately and this exact thing keeps coming up when I read other peoples accounts. Like they describe hearing something faint in the room at the time, then on playback it's completely different - different words, different tone, sometimes clearer than what they actually caught in the moment.
Makes you wonder what's actually going on. Is the recording picking up something our ears filter out, or is something else happening entirely. I've seen similar weirdness with paranormal photography up here in Cumbria, where you catch something on camera that nobody noticed being there.
Anyone had this happen repeatedly with the same location? Curious whether its consistent or just random. Would love to hear some specific examples if people have them.