In the control instruction speech recognition system,the Method of feature parameter extraction of speech was one of the key factors of the system.On the Matlab platform based on matlab GUI technology,the user interface of the HMM speech training and recognition model was designed and it could be used to choose the method of feature parameter extraction,the training and recognition operation of speech signal,and to output the results and display the waveform.In the situation of specific person and non-person,comparative analysis the differences of the training,recognition time and recognition rate of between two methods of feature parameter extraction of LPCC and MFCC by examples.The results show that LPCC parameters has more advantages than MPCC parameters while the speaker is a specific person;MPCC parameters has better recognition effect and efficiency while speakers are nonpersons.
control instructionfeature parameterHMMMATLAB GUILPCCMFCC
NETL
NSTL
维普
万方数据
