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 Electro Harmonix Poly Chorus Demo Part 2, Battery starved Casio keyboard plays WHAM's 'Wake me up before you go go', MXR Dyna Comp vs Behringer Dynamics Compressor