Boom!
A potion-bomb-induced detonation resounded in the commoner's district. And the entire audience fell silent.
A detonation had occurred over Alto's head on the 3D spectral rendering. He had projected the results of someone using the RDX on a bunch of monsters in a random region inside Badlands.
Alto's presentation of the RDX's impact was impeccable. He had used special array disk recordings to record the impact of the potion bomb. Due to the integration of the sound-element runes in the array disk he used, even the booming acoustics heard by his audience had a surround-sound effect.
The sound was not the only reason the audience became silent. The adventurers and hunters saw the effects of the potion bomb with their own eyes and were too stunned to speak about it.