Gee, I don’t know.
Miss Hissy Slashy has a silent meow. She opens her mouth, and the tiniest squeak comes out.
Lucas Prince of Darkness has a bold, manly MEOW OW OW!
My Rocket used to have a loud voice, but now that he’s old and creaky, so is his meow.
Shadow the Tiny Cat can meow to put Lucas to shame. We can hear her all over the house!
But insofar as accents? [shrugs] I dunno.