Google Chrome is auto-muting

Every time I open up chrome and go to any site that has audio its always muted (in windows volume mixer). I go to volume mixer in windows and i see 2 chrome bars "Google Chrome" and then "YouTube - Google chrome" i try un-muting "Google chrome", you hear something like a person talking on the radio then seconds later it mutes again. I try un-muting "YouTube- Google Chrome" and it un-mutes and you can watch a video but when you go to another video it mutes again.

 Does anyone know how to fix this???????????????????? I've been trying to fix this for 2 months now and I'm about to switch browsers.   

 I have a screen shot of what's going on but i don't know how to link it / insert it on here (if you tell me how to link pics that would be helpful to).

 Help is very much appreciated. 

wow, odd.  You may have a virus.  I had something similar to this and no matter how many scans i ran and infections i removed, it kept happening.  reinstall windows.  or maybe try a system restore first.