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 Sonic '06: Powerhouse - PART 60 - Game Grumps, Castlevania III: Dracula's Curse - Oops haha - PART 4, No Time to Explain: Operation Clone Burger - PART 10 - Steam Train