Real-time lip synchronization between text-to-speech (TTS) system and robot mouth

Lip synchronization is one of the most important technologies in the field of intelligent robotics. The natural and precise lip synchronization of robots could contribute to the improvement of human robot interaction and communication. In this paper, we designed a lip synchronization system for intelligent face robots using a text-to-speech system and robot mouth module. By applying several suggested lip synchronization control methods to this robot, we developed a reliable and high-performance robot lip synchronization system. Then, the overall performance of this system was verified through the experiments.