¹School of Physics and Telecommunication, South China Normal University, Guangzhou,P.R.China
²NIT,ZheJiang University,Ningbo,P.R.China
³School of Computer Science, South China Normal University,Guangzhou,P.R.China,510006

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Abstract—The paper introduces an isolated word speech recognition system in which the speech signal is acquired in real time. Half Raised-Sine function is applied to the MFCC parameters of the audio files, and improved DTW algorithm is implemented. Simulation results show that compared the conventional DTW with the improved DTW algorithm, the latter can obtain a better recognition rate and faster response time. Finally, the system was implemented on FPGA and yields satisfactory performance.

Index Terms—the isolated word, MFCC, Half Raised-Sine function(HRSF), DTW, FPGA

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Cite: Xiaohui Hu, Haolan Zhang, Lvjun Zhan, Yun Xue, Weixing Zhou, Gansen Zhao, "Isolated Word Speech Recognition System Based On FPGA," Journal of Computers vol. 8, no. 11, pp. 3216-3222, 2013.