Automatic lowering of volume on users playing a different game

To put it simply, me and my friends often stay in the same voice chat even when we are two groups playing different games, to be able to still talk to each other, but often have to lower the volume of those playing the other game to have the focus on those playing the same game. So my suggestion, is if you there are multiple two or three groups playing different games in one voice chat the others get their volume lowered. But of course not if a group is playing one game and one other person is playing another or nothing at all.