What gives?

[Mal Nova]

Amendment 8/23 - Added a new technique called Sound Manipulation. It costs 25 XP.

Quote:
Sound Manipulation - Your character is attuned to the subtle vibrations of sound waves. Through concentration, he/she can manipulate those waves in various ways, including magnifying them, deadening or cancelling them, and diverting them from one place to another. The expert Sound Manipulator is a master of psychological tricks in combat, while the out-of-combat applications are legion.

I was under the assumption and belief that something like this was related and needed Elemental Wind. Sound manipulation is the altering of vibrations in the air...