The few times I have seen one of those ghost hunter shows I am always amused by how they record sounds that are supposedly voices of ghosts. It usually something like - grtumbloeinosmgnourenzleoe. Then the people doing the ghost hunting say - did you hear that? The spirit said that 'I am a soldier who was killed here'. Let's play that again....grtumbloeinosmgnourenzleoe. See, you can hear it right there....let's enhance the sound... grtumbloeinosmgnourenzleoe. Yes, I heard it that time. They repeat what they 'think' they heard until the audience who buys into such nonsense is completely on board.
I'm your huckleberry.