Research on isolated word recognition with DTW-based

Abstract

The paper first conducts a study and analysis on DTW algorithm. As the DTW algorithm needs a large number of calculations and has poor anti-interference weakness, the paper proposes improved DTW algorithm with path constraint and improved DTW algorithm to relax the starting and ending point. Experiments show that the improved DTW methods can improve the recognition speed, reduce the noise interference on speech recognition, and improve speech recognition rate.