This occurs during your second Dark Prince transormation while in the courtyard immediately before a chariot race. In the corner of the courtyard, there will be a hole in the ceiling that respawns enemies until you leave the area. (Near the panel you need to stab and hang from to open the gate) Climb the closest pole to the hole in the ceiling and a female voice will start announcing sound credits for the game.

Ex: Sound Engineer -name-, Second Sound Engineer -name-, etc.