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 Video Essentials V - Definitive Tools for Professional Quality Results, NewBlueFX Sizzle Reel 2014, NewBlue, Inc. Corporate Sizzle Reel (Video Technology and Software)