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 Halo 3: ODST OST - Data Hive, Gears of War 2 Soundtrack - Derrick Chase, Halo 3: ODST OST - Deference for Darkness