Pandemonic Silver: Mined from thin veins of ore on the
plane of Pandemonium, pandemonic silver has all the properties
of alchemical silver (see page 284 of the Dungeon Master’s
Guide). In addition, a thin, unearthly scream issues forth
from a bladed weapon made of pandemonic silver whenever
it’s unsheathed in at least a light breeze. This scream is a
sonic, mind-affecting compulsion that is a fear effect. Other
than the wielder, those within 30 feet who hear the scream
must succeed on a Will save or cower for 1d4 rounds. The
DC of the Will save depends on the strength of the wind, as
indicated on the table below.
原文仅仅提及到whenever it’s unsheathed in at least a light breeze. "已出鞘的并处于微风中的刃器“，没提及挥舞的情况
SO这里应该只是翻译写多了的情况，无论你是否挥舞，你只能在武器裸露在风中的时候，根据风力计算它的对抗DC，是否挥舞不造成影响
