The voices heard in the background have considerable reverberation with them indicating some distance between the source and the microphones. Having also recently investigated the house I know that sound carries quite well between certain locations. I wasn't there so I can't say with certainty, but was anyone else in trhe house at the time? It almost sounds like distant conversation.
The thumps and bangs also are quite common, many being caused by settling or expansion / contraction due to temperature changes. What was ambient temperature before and durring the taping? This might cause some of the sounds, again can't say for certain though...
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CaveRat is an
Independent Research Associate