Provided is a method for hearing performance assessment of a user wearing a hearing system (10) comprising at least one hearing aid. Said method comprises the steps of picking up (12； 12′；, 12″；) sound from the environment thus providing a signal, processing (16； 16′；, 16″；) the signal thus obtaining a processed signal, and presenting (14； 14′；, 14″；) the processed signal to the user by a speaker of the bearing aid. Said processing comprises applying at least one type of modulation to the signal.
