Researching of Speech Recognition Oriented Mongolian Acoustic Model

Context-dependent acoustic model based on decision tree has been deeply investigated and applied in English, Chinese speech recognition. But in Mongolian speech recognition, little attention was paid in the past. In this paper Mongolian context-dependent acoustic model based on decision tree was proposed.and decision tree based state tying was applied to the acoustic model designning in Mongolian speech recognition. Finally, the experimental analysis was carries on to unseen triphone, sparse triphone by HTK platform and satisfactory effect is gained.