I am currently on a Teamspeak every day of my World of Tanks clan.
This clan does not have an age limit which means we have some of this children hanging around.
Something they can yell which is a painfull noise if you wear headsets. Putting their decibels low doesn't help because often they talk normal and then you can't hear what they say.

So what Teamspeak should have is a panel that allows you to change the volume of high Hz tunes and low Hz tunes for each client. I don't think a panel like that is hard to create.

What then also should be added is a bar to save the sound profile.
Visual example: http://oi44.tinypic.com/k034i0.jpg