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 Charlotte (NC) Fire Department Fire Boat 38.mp4, Greater Alarm @ 5920 Glendale Chase 2-24-13, Firefighters Battle 3 Alarm Fire @ Recycling Plant