Place it at the very end of a late-night edit, after the last rambling exchange, so it acts as the closing line. Follow it with awkward crickets to underline the sudden quiet, then cut to black.
關於此聲音
A Spanish speaker tells someone to go to bed because the hour is already late, in four seconds of direct, no-nonsense speech. It lands as both affectionate and dismissive, the kind of cutoff that makes a listener smile while accepting the night is over. The wording is a familiar household expression in Spanish for staying up too long.