Here is a 1st generation recording of the gasp/sigh that we heard when we were doing the quick EVP session in the Living Room. At the time we heard it, it really did sound like someone/something had coughed or laughed.
I can also confirm this is a sound made by one of those loud clocks (or something else mechanical) in the room because in another 1st generation recording I can hear the same sound made when no one was in the Living Room.
For whatever reason, my recorder captured the actual sound instead of the cough/laugh/gasp I thought my ears had heard. What a great reminder for me not to immediately believe all the things I hear with my own ears!
So much for the really loud EVP.