I've had this problem for a while now where my headset (A pair of Razer Carcharias) makes a really weird effect when playing music (it only does this with music and skype calls). The audio goes all dimmed down and scratchy. I've tested this with Grooveshark, VLC and Media Player and they all have the same problem. I've reinsalled my realtek drivers several times but to no avail. I then went into a game that was a music based game and found that there was no problems there! It also only happens with this headset. There is also a place 3/4 plugged in where the music becomes crisp again but everything else goes scratchy. (This also all started relatively recently)
EDIT: Was just messing around realtek control panel and if I set only audio from the right side to come out it works however any audio that is set to come out of the left doesn't come up (which messes up a lot of songs) and vice versa.
EDIT: Was just messing around realtek control panel and if I set only audio from the right side to come out it works however any audio that is set to come out of the left doesn't come up (which messes up a lot of songs) and vice versa.