What I've gathered from this pronunciation is e- ay, ē- eh and a- uh, ā- ah. So kēlā wahine is pronounced kehlah wuh-hinay. I hope that helps someone.
The macron or kahakō over a vowel does not shift the pronunciation. It means that you pronounce it for twice as long. The "e" in Hawaiian is pronounced more like the short e in bet even at the end of words or with a kahakō on it. The a is usually pronounced like the a in father, but for some words it does have a slight schwa sound to it, like in wahine or nani. An a with a kahakō would never sound like a schwa, though.
Oh that makes sense. I'm used to accents changing the sounds of the letters.
Anything that has a "-" on top of a vowel is usually a long vowel (I discovered).
What's the difference between Kēia and Kēlā? I assume it's a gender thing, if Hawaiian has genders?
kēia is this (close) and kēlā is that (far). Kēnā is an in between, not quite as far as kēlā