Spell: Wall of Sound (Lvl 3/4)

Evocation [Sound]
Level: Bard 3, Sor/Wiz 4
Components: V, S, M
Casting Time: 1 standard action
Range: Medium (100 ft. + 10 ft./level)
Effect: Wall of sound up to one 10-ft. square/level, or hemisphere of sound with a radius of up to 3 ft. + 1 ft./level
Duration: 1 round/level
Saving Throw: see text
Spell Resistance: Yes

Holding one arm perpendicular to the body and moving the other in a circular motion that begins quickly and then slows, the caster of this spell brings into being a stationary Wall of Sound that can knock creatures down and deafen them.

An invisible vertical curtain or sphere of sound appears. Sound is projected away from the caster, possibly damaging, deafening, and knocking down creatures on the other side of the wall.

Any creature coming within 10' of the wall must suceed at a fortitude save or be knocked back 5' and fall prone. Flying creatures who fail this save fall from the air and are knocked back a distance equal to their height above the ground. In addition, any creature within 20' of the wall takes 1d4 points of sonic damage and must succeed at a fortitude save or be deafened.

In addition, any creature attempting to pass through the wall is automatically deafened and takes 1d6 points of sonic damage + 1 point per caster level (max 15 points), and must succeed at a fortitude save or be knocked down, back and prevented from passing through the wall by the force of the sound.

Arcane Material Component

A 4 foot length of catgut or copper wire.