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 The Shadow with Orson Welles - "The Hospital Murders" 08/14/38 (HQ) Old Time Radio, The Witch's Tale - "The Devil Doctor" 01/08/34 (HQ) Old Time Radio/Horror-Fantasy, Suspense! - "Cabin B-13" 11/09/43 (HQ) Old Time Radio Thriller