I can only guess here, but since the course is in beta and probably didn't have that many people to help, they needed to take whatever sound clips they could get. Recording without good equipment and especially a noise proof room will never produce good audio quality. Just a guess.
Marcus ‧ Ancient Roman given name from either Etruscan Marce or the Roman god of War, Mars ‧ ‧ In Etruscan mythology, god of war, Laran's, consort is Turan, goddess of love and fertility, who equates to the Latin Venus. Laran is the Etruscan equivalent of the Greek Ares and the Roman Mars.