Transmutation [Sonic]
Level: Paladin 1
Components: V, S, DF
Casting Time: 1 swift action
Range: Touch
Target: Your weapon
Duration: 1 round
Saving Throw: Fortitude partial; see text
Spell Resistance: No
At your touch, the weapon rings like a struck tuning fork. The sound diminishes until it’s imperceptible, but when you touch the weapon you can feel the vibration.
You empower the touched weapon with magic that causes it to emit a loud clang when it is struck against a hard surface, such as a floor, wall, or creature. The weapon deals 1d6 points of sonic damage with each successful hit, and any creature struck by the weapon must succeed on a Fortitude saving throw or be deafened for 1 minute.
Source: Spell Compendium, page 59.