Pepe Silvia
Occasional Pre-Show
And the vibrations produce a sound.
That's slightly debatable, because one of the qualifications of "sound" is that its vibrations are loud enough for the ear to actually pick them up and process them, but I'm not qualified to technojarble it
Although technically then the argument would turn into "If a tree fell in the forest and only a deaf person was there, would it make a sound" because they'd still feel it happen