  This paper presents a commentator for providing real-time game commentary in
a fighting game. The commentary takes into account highlight cues, obtained by
analyzing scenes during gameplay, as input to adjust the pitch and loudness of
commentary to be spoken by using a Text-to-Speech (TTS) technology. We
investigate different designs for pitch and loudness adjustment. The proposed
AI consists of two parts: a dynamic adjuster for controlling pitch and loudness
of the TTS and a real-time game commentary generator. We conduct a pilot study
on a fighting game, and our result shows that by adjusting the loudness
significantly according to the level of game highlight, the entertainment of
the gameplay can be enhanced.
