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 Gears of War 3 Beta HD Gameplay #10: Retro Lancer Bayonet Charge FTW!, Gears of War 3 Beta HD Gameplay: Sawed-off Shotgun Execution FTW!, Gears of War 3 Beta HD Gameplay: Sawed Off Shotgun Fun! [King of the Hill on Old Town]