The discrete hidden markov model (DHMM) is adopted, Baum-Welth reestimation algorithm, forward-backward procedure and viterbi algorithm is utilized to train and recognize the speech signal.

• 语音识别模型采用离散隐马尔可夫模型(DHMM)，利用Baum-Welth重估算法、前向后向算法、viterbi算法来完成语音模板的训练和语音识别的任务。