Sometimes on chat I set it to play an audio notification upon a message being posted (not just a message with my name). This can get confusing, because I like having some kind of feedback upon a message being posted but I would like a distinction between the sounds so that I know if it was a message for me.
The way this would probably best work is to keep the noise for when a message contains your @tag and the new noise would be for any other message. This way it would be less confusing for current members of the site. Instead we could make a new noise for the any other message.
This way you can know whether there is a message in a chat and whether it is directed to you without having to check the chat window.