Ay-yuh

Northern English dialect has a similar use of Aye to signify assent - but it also has a range of inflections that carry a host of sub-texts inside them.

I have inherited the Home-Counties-cum-West-Country affirmative form of, "Oh-arr" (the further West you go, the more "rrrrr"s there are - and the longer the "Oh" lasts!) which also has a range of tonal values corresponding to different meanings.

Come to thnink of it, you can say, "yes" in a whole range of ways,can't you?