A kind of acoustic model method for building up and the tone decoding method based on the model

The invention provides a kind of acoustic model method for building up and the tone decoding method based on the model, methods described is included：Step 101）Based on training data, the statistic of three factor gauss hybrid models needed for calculating acoustic model；Step 102）Using from clustering method, according to normalized set decision tree problem set, collection carries out segmentation cluster using decision Tree algorithms to the statistic the problem of based on obtained decision tree, and then obtains same position phoneme；Step 103）Basic phone set and the same position phoneme are incorporated as containing the phone set with position phoneme, and raw tone mark handled by decision tree process, the voice annotation after processing is referred to as containing the voice annotation with position phoneme；Step 104）Based on phone set and voice annotation containing same position phoneme, acoustic training model is carried out using acoustic training model method, generation is containing the acoustic model with position phoneme.The high acoustics model confusion degree that the present invention will be devoted to solve the problems, such as in agglutinative language speech recognition system.