A Sorcerer is hiding in a bush, giving them Cover, and last round, they used the Hide action to obscure their location. An unremarkable Orc is standing adjacent to the bush.
This round, the Sorcerer approaches the Orc and casts Booming Blade to make an attack, using using one Sorcery Point to apply the Subtle Spell metamagic to eliminate the Verbal and Somatic components of their attack.
Does the Sorcerer's location get revealed?
It's clear that the Orc would immediately notice that it was attacked, but a normal use of Booming Blade would immediately reveal the Sorcerer's location, even if they remain in cover. Does subtle spell negate that reveal?