What could be causing this weird buzzing when using my usb headset for 48khz audio?

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http://unix.stackexchange.com – I have a Logitech USB headset ( I think it's a H330, but I don't remember the model number right). Occasionally, on Linux there would be a loud buzzing noise in the right ear that was many times louder than the audio. This happened in different apps with different files at different times. I wasn't able to narrow it down until recently, when I found out that it appears to be an issue with 48khz audio. I have two video files. The first has mpeg audio at 44.1khz, the second has mpeg audio at 48khz. The first causes the weird buzzing, the second does not. The results: 44.1khz audio, VLC on Li (HowTos)