Unidentifiable Voice/Sound Artifact

[WCK]

The below recordings were captured on October 16, 2020 at 10:59 am.

The exterior camera was triggered by me exiting the house, and again when re-entering the house. At the time, I did not hear the voice/sound artifact in question.

At the time of the recordings, I was the only person present. The faint background noise is from a radio station being played through outside speakers and is much fainter and clearly distinguishable from the voice/sound artifact captured in both recordings.

The "voice" appears to say, "How's it going" or some similar phrase.

At no other time has a similar event occurred on any of the four exterior cameras.

Looking for any possible explanations.

Thank you.

https://youtu.be/AI7GxQ5mU0k

https://youtu.be/EZFKpokFp70

[jguerdat]

I wonder if it's something to do with the door opening and closing.

[WCK]

Ruled out due to the fact that no other recordings on that same camera contain the voice in question, even though the same sliding glass door is continually opened and closed. Though not inclined to believe it, the voice has paranormal qualities. It is the same voice, intensity, pitch, and verbiage in two separate recordings.

[WCK]

Two paranormal voice recordings captured on Arlo Camera 3 on October 17, 2020 10:59 AM.

Both voices and phrases identical and occur within the first 4 seconds of the recordings.

This was not audible to me when I triggered the camera upon exiting and entering the house.

https://youtu.be/AI7GxQ5mU0k

https://youtu.be/EZFKpokFp70

Any plausible technical explanation is welcome.