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 Cuckoo Clock 8-day-movement Chalet-Style 44cm by Anton Schneider, Cuckoo Clock Instruction & Manual - by Hekas Clocks, Cuckoo Clock 8-day-movement Chalet-Style 60cm by Anton Schneider