I don't pronounce the initial vowels in Aaron and Erin differently, but the o and i are definitely two separate sounds.
Yeah, I maybe think the first syllables are different but I'm pretty sure they're really the same. But the second one is different? Sort of run vs rin?
Yeah, vowels are friends. See under: I welcome you to my world, where shit and sheet are pronounced the same.
(I pronounce Erin and Aaron slightly different - very different if I'm speaking Hebrew where Aaron becomes Aharon, but the Mary/merry/marry is not gonna happen).
I know Jewish parents who named their girls Trinity and Bridget.
I pronounce Aaron sort of without a Rochester accent and Erin with a Rochester accent.
I cannot find a good example of my accent online. But sort of like Chicago or Detroit.
Erin with a Rochester accent.
That's like, stretched out to four or five vowels, right? Eeehhhhaaarrrin.
I made an adobe spark video [link]
Trudy pronounces them the way I do (unsurprising considering we both grew up in Morris County).
I got corrected by a woman whose name was spelled Carline, which I pronounced Carleen. She, being from Rhode Island, pronounced it Colleen.