Recently I upgraded Windows to the new Anniversary Update. However, when I turn on Bass Boost in the Sound settings, there seems to be a weird crackling sound when playing a video, just as if my headphones are broken or can't play enough bass. I believe this has to do with Windows, as I found a really weird thing - if I go to the settings and disable Bass Boost, then enable it again, the video plays out fine. Until I play another video - then the sound is crap again. And so, every time I play a video I have to re-enable the Bass Boost to get a decent sound.
This happens both with the default audio drivers and with the suggested Conexant drivers on the manufacturer's website.
Before I upgraded Windows there was no issue.

Does anyone know how to fix this?
Thanks :)