In the General Settings for MV Live, you can control the Sound FX, font size, animations and chat access for your MV Live room.
To reach these settings, open a live room and click <Settings> gear at the bottom right of the room.
This will open a menu. At the top of that menu click <Room> and you will see the following options.
Simply click the options to change your live experience!
Your visiting members will still see the room based on their own preferences so make sure to set up your live room in a way that works best for you!