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 Switzerland 108 (Camera on board): Interlaken-Thun by Gunten 2, Panasonic FZ35/FZ38 vs Canon SX1 IS lessen noise for the FZ35/FZ38 (HD), Switzerland 12 (Camera on board) Jaun Pass (FR), Kappelboden, Charmey [HQ]