Marvel: Audiokinesis

Sean Cassidy (Banshee)
He can create powerful sonic waves with his voice with which he can achieve various effects, often with the assistance of psionic abilities which function only in unison with his sonic abilities.

Theresa Cassidy (Siryn/Morrigan)
Siryn has the ability to create various sonic effects through the combined action of her vocal cords and limited psionic powers which can only be used in conjunction with the sounds she produces.