videos in AudioSet
A list of about a million ten-second YouTube clips, each labelled with the sounds in it, that Google published in 2017. Labs use it to train and test general audio and music models.
Including Assassin's Creed 3 Multiplayer Failing w/ Danz & Nova Part 2, Farcry 3 MLG Walkthrough w/ Kootra - Ep. 63 "The Definition of Catsanity", Random Smite Creaturing w/ Kootra Ep. 1