As Lain said, it might've changed in the patch.
Yeah, it was the kind of clattering noise for me. I might've had the volume up too much when I first went there (and it was late at night so it really got me by surprise)... :P
I'll double check and then change the article if necessary.
Edit: Yup, still clattery. I only have the first patch added, though, because the second one reintroduced some bugs. I'll change the wording though.