Interesting analysis, although I do think the things she's pointing out are mostly camera anomalies.
Had not listened or watched the entire thing yet, didn't know it was that long. And these weird sound videos can easily be faked.
But when he walks outside it does look and sound like a real recording. Sounds like a woman screaming really loud in the distance.
Was thinking maybe it's an animal like a fox perhaps, but the sound goes on for too long.
Strange combo with the lightning and screaming, maybe it's the gates of hell that are opening.