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 Chris McCormack and Sebastian Kienle above and under water, Chris McCormack and Normann Stadler running on Alii Drive, Yvonne van Vlerken: It is a long way running up to the front!