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 HL6 Grille and Surface Mount LED Emergency Vehicle Light, IW3 100Watt Siren 911 Signal USA, Siren Speaker Mounting on 911 Signal USA's Dodge Charger Police Demo Vehicle