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 ABX Testing: 256k AAC vs Lossless w/ Sony XBA-H3, Surface Touch Cover 2 Review vs. Touch Cover / Type Cover, Sydney Can Con 4 Headphone Meet Video - May 4, 2014