Me and another user from the Sample Sanctuary discord server have been searching for footage of this spelling bee. We are interested in this specific one because it is sampled in the song "Read, Eat, Sleep" by The Books. According to Genius, The voice is pronouncer Alex Cameron. Eventual winner Sean Conley correctly spelled “aleatoric.” Here is the link to where they spell it: youtu.be/UvBnyVwd47s?t=204