Wilfried, I have no idea what sounds you mean by o, au(=aw) and ou in the following sentence: "Some times kames is pronounced o, some times au (= aw), and sometimes both forms are displayed, sometimes with the same word. A patah when stressed can also be pronounced ou." Can you describe the pertinent IPA symbols? (I suspect Mark may have difficulty with your terms, too, since he and I share, I think, a very similar couple of idiolects of western US SAE.) Examples of the sounds in terms of standard Hochdeutsch or other continental languages' (French or Italian, e.g.) norms would probably be more helpful than "English examples" because these sounds are precisely the ones on which the regional varieties of English are most prone to differ, and we in the US, lacking a queen and whatnot, ;-) have no generally recognized standard to go by in interpreting such examples.

Liland