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 Hakuba International Trails 2014 第4回白馬国際トレイルラン, Runbell, designed for urban runners, in action, Introducing Runbell - A Runner's Bell to Warn Slower Movers of Your Approach