Place it at the interruption point in an edit, after overlapping chatter and before the line everyone needs to hear. Follow it with sudden suspense before a big reveal, or precede it with a confused huh reaction when someone keeps missing the point.
关于此声音
A short four-second clip of a voice saying shut up and listen as a direct command to stop talking. It feels blunt and commanding, with a funny, awkward edge in casual conversation, because it instantly demands silence and full attention from everyone who hears it instead.