Abstract: A method for generating a first multimedia element includes reading a first media; acquiring at least one image of at least one face of a user; detecting a plurality of characteristic points of the face of the user; generating at least one physiological parameter from at least one processing of at least one characteristic point detected; generating a first multimedia element superimposed on the first media being played on the display, the first multimedia element being determined according to at least the value of the physiological parameter; emitting simultaneously to the generating a piece of digital data deduced from the value of the physiological parameter, the piece of digital data further including a time marker of the first media.