*1 step in 72 equal temperament on C. Equal-tempered: 21/72:1 = 16.67 cents. MIDI pitch bend: 43,69 Created in Sibelius with midi pitch bend on 69 for 15.625 cents rather than 16.667. New version a PU on 43,69 for 16.6748046875 cents.
This is a harshly manipulated file of rumbling that has been tweaked to the max by plug-ins and various noise making enhancers meant to simulate the sound of impacting. This, combined with the gentle rumble to accentuate.