SPEECH RECOGNIZING METHOD

摘要

PURPOSE:To facilitate the alteration of a dictionary item to be recognized in speech recognition and to improve the recognizing performance. CONSTITUTION:Speech piece patterns segmented from a time series of similarity obtained by analyzing a speech generated by voicing a word set in consideration of phoneme environment are registered in a speech piece dictionary storage part 6. A recognized dictionary item generation part 9 performs time collation by DP matching between a time series of similarity generated by connecting the speech piece patterns by a speech piece connection part 7 and a time series of similarity generated by voicing the same object dictionary items to be recognized by a small number of speakers by a time collation part 8 to find the mean value of similarity between frames which match each other with time, and the mean value is stored in a recognized object dictionary storage part 10. When an unknown speech is recognized, the input speech is similarly analyzed and matched with respective dictionary items stored in the recognized object dictionary storage part 10 to determine the dictionary item having the largest similarity as the recognition result.