FREINDLY TEAM TAUNT

Why isn't there an option to lower the taunt volume in game I play with headphones and it can get really annoying . Please add a feature to the game so that you can lower taunt volumes it gets really annoying when someone taunts all match and it shows you that they aren't focused on playing the game at all. I do understand that lowering voice in settings will disable taunts but i shouldn't also have to lower my champions voice.