This paper investigates the issues of creating a computer system that uses voice signal features and pupil diametr to determine person s emotional state. The results were used to develop systems: RBSM (Recommended Biometric Stress Management System)- Chapter 1, BPASP (Biometric System for Psychological Assessment of Student Progress)-Chapter 2, Speech Emotion Recognition System- Chapter 3, Pupil Recognition Analysis System- Chapter 4. Research conducted in Institute of internet and intelectual technologies Vilnius Gediminas Technical University.