in this clip, no one was in the house. the background noise is the air conditioner in the blue room. at the beginning, there is a loud bang followed by another slight bang somewhere in the house. also, at 11 seconds, it sounds like a man yells, "no, stop!" this is hard to hear due to the background noise.
upon return, the team did not notice out of place or fallen on the floor.
Villisca Axe Murder House.
In this clip, al and jim are talking about pie casserole (pizza) and at approximately 11 seconds, there is a response not heard in real time that sounds like an older man saying, "ah, yes," that sounds like it is off in the distance.