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.
“If you are the smartest person in the room, then you are in the wrong room.” — Confucius