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 Making a Hot End for a Reprap Prusa Mendel 3D Printer, Gun Powder - Refix - New Dubstep - FREE Download, Refix - Spill - Dubstep Dubplate