Human-voice interface : Special issue on recent recognition technologies

This paper describes some examples of human-voice interface technology recently developed by NEC. The first is a network speech interface that enables the Internet to be easily accessed via mobile, car, or home terminals. This speech interface is composed of a client-type speech interface and a server-type speech interface. The second is a speaker-independent large-vocabulary speech-recognition system and a speech-synthesis system, which are necessary to realize such a network speech interface. The third example is an emotional-spoken-dialogue system aimed at making the human-machine dialogue more pleasant to use.