The correct pronunciation is "3'ariib" not "3'arayb."
Audio is awful here
Why is there a need for يا ?
It's a way to politely address the person you are talking to. It's not said when talking to multiple people though as far as I'm aware of it.
in Arabic, they use "interjection" یا before calling peoples name
come here Ali تعال الى هنا یا علی
Is the pronounciation Ant not Anta?
Anty=انتِ for female
Anta=انتَ for male
So Ali is male then it's Anta 8areeb ya 3alii