This started happening about 2 weeks ago.. perhaps after an update, but not sure.. I can be listening to internet radio or watching a video and the audio will "scream" with a weird electonic buzz, then it will cut in and out. It will also happen when I change between browser tabs (and not restricted to one browser.. it happens with opera and FF).
It is not limited to when I am "using" my laptop..if im just letting it play audio, it will happen.. I see this is an ongoing issue with these laptops... thanks HP....