http://www.klippel-listeningtest.de/lt/default.html That is the listening test for how sensitive for yours ears. This is a very good test for the people who like to be a sound monitor or sound engineer. Those professional need to have a good sensibility of hear. Basicly the test give you two sound clip to hear and choose which one is distorted My hear can only to -24 db out of -45 db for pop music and vocal only to 12db, maybe i get use to listen the radio quality so for vocal my sense is low than i listen the music.
