A fundamental study of novel speech interface for computer games

A novel speech interface for computer game systems is addressed. For typical computer game systems, users have input game commands with touching devices such as gamepad, keyboard, touch-panel and foot-board. Acceleration sensors which can detect player´s motion have been general. Some systems have speech interface for controlling games, namely, voice controller. A simple speech interface just detects large sound signals, and some game systems can recognize what users say with automatic speech recognition (ASR) module. Although ASR works well for polite speech, it dose not work well for exciting speeches such as shout by excited game players. In this paper, we focus on the speech interface which can deal with excited speech, and describe ASR which can discriminate shout from natural speech based on the understanding of speech events.