SPEAKER ADAPTING METHOD FOR VOICE MODEL, SPEECH RECOGNIZING METHOD USING THE SAME METHOD, AND RECORDING MEDIUM RECORDED WITH THE SAME METHOD

摘要

PROBLEM TO BE SOLVED: To increase the recognition rate by extracting model series of voice models for unspecified speakers by using the voice of a speaker to be recognized and adapting the speech models for unspecified speakers by the model series. SOLUTION: A speech model storage part 12 is previously stored with the speech models for unspecified speakers corresponding to a recognition category as a reference model dictionary. A procedure of implementing a speech recognizing method is previously recorded in a storage part 10M in a control part 10, which controls the processes of respective parts 11 to 16 of the speech recognition part by following the procedure. Then model series are so extracted that a correct model series is included with high probability, and speaker adaption to the respective model series is performed; likelihood to the object speech to be recognized when speech models after the speaker adaptation are used is compared and the speech model having the highest value is selected to perform adaptation based upon a more correct model series.