I don't think it's actually a different meow. I think they are just more vocal and use more of a range with their meows. They just have a lot to say, LOL. Think about it. Most cats only meow once in a awhile so if all you ever said was "Hello" then you wouldn't really change how you said it. But you talk far more then that and have a wide range of tones you use with your words to help get your point across. Same with Siamese cats(or more vocal cats in general).
Not only does my Sully meow different (and much more often) than the other kitties, he also purrs different... he's always making some sort of noise. Whether its purring, meowing or something in between, he's always got something to say. I don't know why, I guess its just something they are born with, like how some people sing and some dont. I sure enjoy his talking though
Purebred siamese (not just "siamese color"/colorpoints) definitely have a distinct low pitch meow...and you'll hear it a lot! I'd almost describe it as guttural or growly but those aren't really the right words, I don't think.
Basically, it's a trait that has been passed on and inherited for so many generations that their vocal cord structure breeds true.
I have two pure breed siamese. One is CFA registered. Neither one has the siamese meow. They are traditional, not modern. They both talk more than the other cats, but not excessively, but they do have more of a range of sounds. Milani grunts a lot at the other cats when she is near me. I've learned it means: Get Lost! This is my time! But neither have that low siamese howl. I think it does have something to do with the modern siamese.
I didn't know they had a different meow and I own two! Neko definitely has a deep raspy meow, like he hasn't spoken in ages. Willie has a very high pitched meow and has MANY different types. One of which is his "I'm bored and going to get myself into trouble" meow which is more like "burrrrrrr OW" and everyone thinks that one is funny.
I don't know why it is different, but it is one of the most endearing things to me. My modern Meezer has a huge "vocabulary" and will sometimes imitate meows that I make. I talk to him constantly. He also purrs so hard his whiskers vibrate and it is audible at a considerable range.
This morning he woke me up with this low-pitched, craggly sounding meow. It was so funny!
I wonder if Oriental shorthairs have the same sort of vocal range? Anyone here live with one?
Lacey is a traditional purebred Balinese and she has the low guttural meow and some high pitched ones as well. She yowls and the others meow. Egypt trills. But yes, definitely Lacey's is a way different sound and there is a lot more vocalization from her.