Hear my plea

I need suggestions.

Apparently I have an auditory information processing style. This has a couple of ramifications that are at odds with each other in a crowded workplace like mine:

First, it's really noisy in here, and I'm surrounded by a) a guy with the droningest voice in the Pacific Northwest; b) a woman with a very, very bad chronic cough; and c) three harrassed and stressed individuals who, in order to ease their workday burdens a little, speak to each other in what I think is Tagalog--which is a very clipped and bouncy language that's hard for me to ignore.

Second, I can't drown these distractions out with music because I can't work with music playing either. Music: requires most of my CPU to process. And of course, audiobooks are right out.

I have this meditation-type CD--rain and some gongs and stuff--but I'm getting really, really sick of it. I need non-cognitive, non-rhythmic, non-musical blocker-outers for my ears.

So, any suggestions?