There is a very faint hissing/crackling/scratchy noise coming from the bottom of my new HP Envy Touchsmart 15 t-J000. It seems to be coming from the 'b' logo on the bottom (I think it is a beats audio subwoofer). I wanted to know if this is normal or if there is something wrong i.e. something like dust caught in there. Not sure if this is related but there was also a slight crackling sound that was audible from both the external speakers and my earbuds. This seemed to be fixed however when I updated my soundcard using the support site. Cheers.
-Mindfreak >:o