Pressing question for the masses

[Ringo]

Okay, for all of you with Project Playlist look up "Reptile" by NIN.

Does anyone know what machine's making that sound at the first thirty seconds? I can't quite make it out and it's ticking me off.



http://searchbeta.playlist.com/tracks#reptile

[FAMY2]

"Reptile" is the twelfth track on 1994's The Downward Spiral. This song is characteristic of the band's early 90s "industrial" sound, as it opens with an eerie, quiet machine-like sound collage that transitions into a nearly identical-sounding musical composition. Allegedly, it is a sample of a machine that slaughters pigs, though no sources have been found that indicate this.

IDK. Maybe it is.