This dataset has been collected in the frame of a signal processing contest held during the conference Survishno 2023 (Resonance conference, Toulouse, 2023). The zip file contains a high speed video (2000fps) of a Rolling Element Bearing, 23723 frames (800x800pix) The .mat file is a matlab export of time records at a sampling frequency of 51200 Hz. This file, used to establish the ground truth, was used for evaluating the contestant contributions. Of course this file was not provided before the contest. Track1 is the TTL signal of the optical probe pointing on the cage zebra tape (32 stripes) Track2 is the signal of an inductive sensor (bad quality - not to be used) Track3 is the signal from the accelerometer on the left-hand side of the video Track4 is the signal from the accelerometer on the right-hand side of the video Track5 is the camera output frame capture trigger (essential to synchronise with the video) Track6 is the TTL signal of the optical probe pointing on the shaft zebra tape (58 stripes) Track7 is the analog signal of the optical probe pointing on the cage zebra tape (Track1 is easier to play with)