語(yǔ)音識(shí)別算法在ARM-linux平臺(tái)上的研究與實(shí)現(xiàn)
[Abstract]:With the rapid development of electronic technology and mobile Internet, mobile terminals become more and more close to people's daily life, and more natural man-machine interaction becomes more and more important. Speech recognition, as a freer and more convenient way of human-computer interaction, enters people's lives. And with the popularity of mobile terminals, ARM platform has become the hot spot of hardware platform now, so the research on the realization of speech recognition on ARM-Linux platform has become a cross-focus. In this paper, a set of speech control system for household appliances control is simulated in order to realize a small vocabulary continuous speaker-independent speech recognition system on the ARM-Linux platform. In this paper, the basic idea and flow of speech recognition are deeply studied, and then the pre-processing algorithm, two feature extraction algorithms and three more important recognition algorithms are studied in stages. Three basic algorithms of HMM: forward-backward algorithm, Viterbi algorithm and Baum-Welch algorithm are studied in detail. The hidden Markov model (HMM),) is studied and applied in detail. After choosing HMM as the implementation algorithm, the software module flow of the system is designed. Combined with the HTK toolkit developed by Cambridge University, the HMM model of speech samples is trained, and the trained templates are recognized by speech recognition engine. Then the speech recognition module is cross-compiled and implanted into the ARM-Linux platform to establish a speech recognition system based on ARM-linux platform. This paper makes a fundamental exploration for the application of HMM in embedded system, and makes speech recognition step forward into the application of daily life.
【學(xué)位授予單位】:河北科技大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2013
【分類號(hào)】:TN912.34;TP368.1
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