Can you understand young? Certain tones and frequencies can only be heard by younger people. We used this fact to create a large scale audio test installation in Berlin's Central Station - Hauptbahnhof, to age-test people and play with the generational issues that occur due to parents and teens speaking "different" languages. Once they are done with the test, a trailer plays on the digital screen, depending on their result. Trailer one "for rated young", trailer two"for rated old".