That is pretty scary to hear with the volume turned up.
However, I do not believe you are haunted.
Unless that audio was enhanced to hear that part in the end, spirits really only are heard in the white noise(the fuzzy sound on a TV sort of sound) of digital recorders or with highly scientific equipment.
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"Remember, no matter how many plans are invented to be foolproof, life invents a bigger fool."
"Keep calm and don't read this signature."
We all sit idly by and watch the world go by, wondering where time went and how it could have gone if we did something differently, we live with these life regrets until the day we die, but, not me! I say "No! I will not sit by and regret the past! I will live in the present and anticipate the future!" Oh, by the way, I just got you to read a boring pointless text meant to make some joke at the end of this without true meaning. I am the 1%.
By the way.......the game.