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 Little Superhero Kids 10 - The Stealer Returns With the Super Squad, Little Heroes 10 - The Spark, The Police Car, The Fire Engine and The Dump Truck, Little Heroes 2 - The New Fire Engine, The Mayor and The Spark