Distort

The caster can alter the nature of any sound, provided its source is within 5 feet. Although the volume of the sound remains the same, its resonance, timbre, pitch, or tone can be changed. For example, the sound may be given a buzzing quality, an echo effect, or an underwater tonation, and its pitch may be raised or lowered. By mental command the caster sets the type and amount of distortion, which remains constant until he actively changes it again. Any distortion that the caster can mentally hear can be imposed on the sound. This spell may, at the DM'S option, adjust the saving throw of a sound-based attack.