Threshold transferability: one setting, every set

Production requirementAttribution precision ≥ 95 %so that other people's speech is not attributed to the wearer
Compare with (pick 2)

One threshold per system, every set. Each system starts at the lowest threshold that holds precision at or above 95 % on every set, and the cards show what that single setting costs in recall, set by set. A system that passes here can ship with one threshold; one that fails needs calibration per deployment.