"The silence of the desert is a visual thing, too. A product of the gaze that stares out and finds nothing to reflect it. There can be no silence up in the mountains, since their very contours roar. And for there to be silence, time itself has to attain a sort of horizontality; there has to be no echo of time in the future, but simply a sliding of geological strata one upon the other giving out nothing more than a fossil murmur."
"America" / Jean Baudrillard
The work deals with low frequency sound (infrasound) that the human ear is incapable of hearing.