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 Halo 4 Flood Maps - Point Lookout [Community Feature], Halo 4 Flood Maps - 8 O'Clock Reminiscence [Community Feature], Compose, Construct: Lights, Camera, Action!