Reclaiming temporal information after dynamic time warping
Hollis L. Fitch · The Journal of the Acoustical Society of America · 1983
Template matching methods use dynamic time warping to eliminate differences in duration between the template and the unknown speech. These differences may be linguistically relevant. It has been demonstrated for one test word that the relative durations of certain segments in that word can be used to distinguish it from most “false alarms”—stretches of speech other than the test word that score well on the spectrally-based template match [H. L. Fitch, Proc. ICASSP 82, 1247–1250 (1982)]. Here, a more general procedure is described for segmenting, and testing the relative durations of the segments. This procedure has now been applied to ten words, and shows promising results.