Translation:Torg speaks Klingon and Mara understands Klingon.
You will have to wait, then, I'm afraid. I don't know when the audio will become available for the course.
At the moment, this course is in a kind of preview state for intrepid learners; it's still got obvious problems such as with capitalisation and apostrophes, plus no sound.
Some people may be better served by waiting until the course has matured a bit more and some (or hopefully all!) of those shortcomings are gone.