Abstract
The accuracy of the existing spoken English intelligent evaluation system is not high, and the spoken English evaluation effect is poor. To improve the accuracy and speed of spoken English evaluation, this paper puts forward the design and research of oral English Intelligent Evaluation System based on DTW algorithm. The DTW algorithm is applied to recognize spoken English speech, and a new spoken English intelligent evaluation system is designed. The hardware units are DSP chip selection unit, spoken English audio acquisition unit and its external memory unit; the software modules are spoken English speech preprocessing module, spoken English speech recognition module and spoken English intelligent evaluation module. Through the design of hardware unit and software module, the operation of spoken English intelligent evaluation system is realized. The experimental results show that the oral evaluation accuracy of this system is 65.63% -76.58%, and the response time is 8.23 ms − 13.57 ms, with high accuracy, high evaluation efficiency and improving the effect of spoken English intelligent evaluation.
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Acknowledgements
1. Teaching Research Project of Anhui Agricultural University in 2020 under Grant No. 2020aujyxm90.2. Philosophy and Social Science Funding Project of Anhui Agricultural University in 2021 under Grant No. 2021sk09.
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Fang, Y. Design of Oral English Intelligent Evaluation System Based on DTW Algorithm. Mobile Netw Appl 27, 1378–1385 (2022). https://doi.org/10.1007/s11036-022-01925-7
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DOI: https://doi.org/10.1007/s11036-022-01925-7