Separate the sound slider / mute buttons for Avatar and World sound sources.
I am rather disatisfied with having to mute "sounds" in world at music clubs and social venues when people get spammy with gesture or have objects on their persons that emit repetitive, annoying sounds. This has the effect of muting ALL SOUND sources which is less than ideal when i just want to listen to a DJ's music or relax to the ambient sounds, waves on the beach, birds or what ever else is in the area.