| With the unceasing development of the technology, kinds of Speech Recognition Systems meet the people appear and can be helpful to people's life. The research in the paper is the application of Speech Recognition System based on SPCE061A Microcontroller in the testing system of electromagnetic valve.The developing situation at home and abroad of speech recognition is generally introduced and the form and the principle of typical speech recognition system are systematically illustrated in this paper. On the basis of research of speech signal processing technology, simulation process of the scheduled voice is done with the help of Matlab software and speech feature parameters are extracted. Finally, according to the feature of speech recognition system which is designed in the paper, the principle of DTW arithmetic is discussed to be the recognition method of this system and the simulation process of the recognition voice is done using this method. Ultimately, the ideal result is gained.The scheme of hardware design is achieved independently in the paper. Under the guidance of this scheme, system hardware selection and circuit principle charts are designed including the selection of core-controller SPCE061A, the design of stable voltage power system using integrated stable voltage chip, the design of the circuit of audio input and output module, the design of drive control module, the design of communication module. On the basis of integrated development environment IDE 2.0.0 supplied by SPCE061A, the control program of speech recognition system is complied with C language and assembly language. The program includes speech training program and speech recognition program.In order to inspect the recognition effect of electromagnetic valve clamp speech recognition system, the experimentation scheme is designed under the different conditions of background noise, and analyzed the cause of recognition errors; obtain recognition effect of user requirement. |
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