Time normalization of syllables with the dynamic time warping algorithm in assessing of syllables pronunciation quality when speaking

Annotation: The article is devoted to the problem of time normalization of syllable records before the comparative evaluation of the pronunciation quality. The dynamic time warping (DTW) algorithm is used for time normalization. A comparison is made of quantitative estimates of the syllables pronunciation quality. Estimates are calculated on the basis of the DTW-distance, the Minkowski metric with a parameter value of 3 and the correlation coefficient. A conclusion is made about applicability of DTW for time normalization of syllables for evaluating intelligibility in the process of speech rehabilitation. As the final evaluation of the pronunciation quality the DTW-distance was chosen obtained on the basis of the algorithm without preliminary normalization and smoothing.

Keywords: speech quality estimation, syllables pronunciation quality, time normalization, dtw