So I have had my XPS 15 9570 for a few month now, there have been always a buzzing sound, at the beginning I just thought that it was not that important, but eventually annoys me that it was so noticeable. Is there anyway that I can fix this problem?
Could you describe your configuration, such as does this happen with built-in speakers? Is the buzzing a loud low frequency sound or something like static? When exactly does the noise happen with regard to what you are doing at the time?
There are several threads about the 9570 and sound problems. But one kind of buzzing may occur if using external powered speakers.