Human beings are eminently emotional, as their social interaction is based on the ability to communicate their emotions and perceive the emotional states of others [1]. Affective computing is a discipline that develops devices for detecting and responding to users' emotions. Within affective computing, affective mediation uses computer-based technology which enables the communication between two or more people displaying their emotional states [2, 3]. In last years, the number of applications related to these two research areas is growing [4].