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 ElliptiGO Elliptical Bicycle Support Video #17 - Advanced Riding, Original ElliptiGO "Alfa" elliptical bicycle prototype, ElliptiGO Elliptical Bicycle Support Video #3 - Using the ElliptiGO Kickstand