I think the duolingo voice is a real person's, saying the individual words/sentences. She simply does not have a native speaker's pronunciation.
The dictionary entry at http://www.focloir.ie/en/dictionary/ei/pay?q=pay gives the pronunciation of the stem íoc in the three major dialects.
If you want to hear the voice of real people with nice accents (used in a computer-generated project), type the words in at www.abair.ie. "Gaoth Dobhair" is a small town in northern Donegal (Gaeilge Uladh) and the "Conemara" pronunciation is from Ráth Chairn (Gaeilge Chonnnacht).
Have fun with Gaeilge!