Translation of "Hmph" in Japanese

Hmph, these flies have been buzzing for a while now, how irritating!

もう、さっきからブンブンと、うっとうしいハエだなあ。

"I got angry again today" "hmph" "They said some very weird things again, are you listening?"

「今日ね、腹が立ったのよ」「ふぅん」「例の人、また変なこと言い出してさ。ちょっと聞いてる？」

Hmph, Yayoi's navigation was difficult to follow so we ended up going round and round the same places.

もー、弥生のナビが判りにくいから、同じトコぐるぐる回ったじゃない。