Hello *****,
Thanks for choosing the ROCCAT Kave.
This phenomenon can happen with surround headsets that are not only connected to the PC via USB, but also via an analog input (jack plug). This sound is in fact caused by an electromagnetic pulse that occurs when an electrical current runs through metal. These unwanted audio signals can occur if the components in your computer – such as your sound card, fan, graphic card, etc. – are close together.
Some sound cards have an option that can counteract this problem called "PC Beep". Please have a look at your audio settings, which you can find in the system management or in your sound card’s driver.
Here’s an example of the option you need, which you can find with a simple online search:
http://farm1.static.flickr.com/139/3...9b0393.jpg?v=0
http://ipggi.files.wordpress.com/2009/05/pc_beep.jpg
You could also try using a different USB port.
Another possible source of the problem: If there’s a cordless telephone or base station near the Kave (i.e. on your desk), the radio signal might be creating interference. If this is the case, please pick a more distant position for it.
You can also have a look at your “Control Panel” under “Sounds” (or at your sound card’s driver). If there’s a flag entitled “Digital E/A”, make sure it's turned off.
Feel free to write to me again if anything is unclear or if you need further assistance.
Viele Grüße / Kind regards,
Andi Wulff
Technical Support