DEVICE FOR SPEECH RECOGNITION WITH DICTIONARY UPDATING

A standard dictionary; a feature extracting unit which extracts features from an input speech; a matching unit which performs matching between the features of the input speech extracted by the feature extracting unit and the standard dictionary; a result outputting unit which outputs a matching result in the matching unit; and a dictionary updating portion which updates the standard dictionary are provided. The standard dictionary is built initially as a dictionary to be used for recognizing speeches produced by any independent speaker; and the dictionary updating unit updates the standard dictionary so as to provide a dictionary to be used for recognizing speeches produced by a dependent speaker based on the result of matching between the features extracted from the input speech and the standard dictionary.