if you notice here, Tallerkenene is pronounced with two "N"s when the audio is played in full, but with only one "N" when you hover the mouse over the word. So, which one is the correct pronunciation? Or does it differ on whether or not the word is at the beginning or at the end of the sentence?
I would pronounce that "tallerknene" - and I would write it that way too, though to my big surprise, this doesn't seem to be an accepted option now that I check the dictionary. Anyway, the full pronunciation with 3 e's and 2 n's sounds like something you would have to be a machine to bother with. We all strive towards sloppy pronunciation, don't we ;-)