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 Russian Fire Engine АЦ-5,5-40(5557)-005МИ, Mil Mi-26 Soviet heavy transport helicopter, Soviet anti-aircraft gun S-60 & SPAAG ZSU-57-2