Audiokinesis

Audiokinesis (also called Voicification) is the ability to mentally manipulate

sound waves or to go beyond one’s current vocal ability, allowing one to project one’s voice or any other noise at extremely high decibels or to manipulate the volume of any desired sound, as well as what sound is projected. One with this power can even use Acoustic Location to see in utter darkness.

Some with this ability have a specific way of using it. Some do this by warping existing sound mentally to alter it's pitch and decibel. Some generate a specific sound wave they can then manipulate to their wishes. A specialized use of this ability is to reproduce the "sonic scream" effect. Meaning that they can cause intense sound and even a physical blast by yelling a certain way. In the case of Acoustic Location an inherent weakness would be sensativity to loud noises while it was active, though they would retain superhuman hearing. In the case of the sonic scream the user would have a tough larynx and esophagus to accommodate the strain.