But i will tell you this what i know: A is pronounced like the A in Hawaii- & Haloha & hahaha E (short e) is like the first "e" in Ever, or the word red. I is pronounced "eeeee" O (long o) is O like "o.k". U(short u) is like in "uggs" or umbrella, fun. W is pronounced v The vowels only make one sound. This makes Hawaiin language much easier to learn then if each vowel had short & long sound.
This dosen't have a pronunciation, so I'm forcing out glottal stops. A-Oleh
The ' is an actual part of the beginning of the word, too. Obviously, if it's used alone, you won't hear it, but if you were to use it after another word, you need the ' to show that it's the word it's meant to be. I can't think of any exanple sentences, but... Ke 'a'ole is different from Ke a'ole.