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 Werewolf Forest - Halloween Horror - Scary Sounds and Music - Halloween Sound Effects, Hell - Halloween Horror - Scary Sounds and Music - Halloween Sound Effects, Dungeon Dripping - Halloween Horror - Scary Sounds and Music - Halloween Sound Effects