Improved algorithm of DTW in speech recognition

2019 International Conference on Advanced Electronic Materials, Computers and Materials Engineering

无线电电子学;计算机科学;材料科学

Zhi-Qiang, H.U.^1 ; Jia-Qi, Zhen^1 ; Xin, Wang^1 ; Zi-Wei, L.I.U.^1 ; Yong, L.I.U.^1

College of Electronic Engineering, Heilongjiang University, Harbin

150080, China^1

关键词: Dtw algorithms;    Dynamic time warping algorithms;    Recognition algorithm;    Recognition efficiency;    Search range;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/563/5/052072/pdf
DOI  :  10.1088/1757-899X/563/5/052072

来源: IOP

【 摘 要 】

This paper improves the Dynamic Time Warping (DTW) algorithm. In order to change the problem of the traditional search range of DTW speech recognition algorithm is too large, an improved DTW algorithm is proposed to limit the search path. Firstly, the traditional algorithm is analyzed to find its speech recognition search path, distortion and recognition efficiency. Secondly, the improved algorithm is introduced, the search path is limited, and simulation is carried out in MATLAB. Compare the improvement results with the improved recognition results before comparing the distortion and recognition efficiency, and the improved efficiency is calculated. Experimental results show that the improved new speech recognition algorithm is superior to the traditional algorithm in overall performance.