Hey there,
just another small Starman problem

I need to record something for a friend, but I can't figure out the problem. My voice is just crackled and cruel. And no, not in real life, just the recording

A few days back I made a better recording, but it was still that bad, so I tried a few bits and pieces, but it's only getting worse, and I can't go backwards too

Currently it sounds like this :
click and listen to meThis is recorded with audacity 1.3 beta, but it also sounds this way when I record it with the simple vanilla windows audio recorder, so I guess it's more a hardware setup problem. The file sounds so, before even saving, so it's not really a save decoding thing either.
The headset I'm using is just a cheap noname, but I was using it 6 months back for team speak and it seemed to work fine (had XP there though). Now I'm running W7 64 bit home premium, 8 GB Ram. my Soundcard (where the Mic is plugin) is a soundblaster audigy 2 zs. The driver should be the most uptodate one.
Does anyone have an idea, where I need to repair or proper setup the mic ? The recording I have to do is quite important.
I would appreciate any help. Thanks in advance

Cheers
Starman