Comment 7 for bug 730925

I think I have found what is causing this, it looks like when I try to dynamically add a new menuitem to the dbusmenu it results in a handle event event to occur on any custom dbusmenuitem which has a slider (i.e. the volume slider and voip slider), before I fixed this by filtering out any values that were not of type double but now it seems the rogue event is ending 0.0 doubles which of course will set the respective sink or source to 0. If you open G-V-C at the same time while starting either player it can be seen that both the input and output sliders go to 0.