Like "oat"?
Yeah prety much. Silent H, aute. The english word oat has a bit too strong an O sound, if you weaken it a little then yeah. Aught is maybe a closer example, a short sharp aught.
Really? No long "O" sound? It's been years since I took French.
Great site for this: https://forvo.com/search/haute/fr/
👍 Nanook of the North!!!
From ze haute latitudes, eh? :D