The alien's Shriek was Followed by a bunch of Coughing and then finally, his voice changing from low to high and finally a Regular voice, much like the telephone person from FNAF

[b]Well uhh, sorry about that, I'm Going through a bit of alien puberty, the shriek thing is kinda apart of it sorry...[/b] with a voice that sounded like he was apologizing, but didn't actually care,