Quality Measurement of Speech Recognition Features in Context of Nearest Neighbour Classifier
AbstractThe quality feature set is a key of importance of successful speech recognition system. The quality of features is estimated by classification error. Yet, this method is limited as the classification experiments must be run with each feature system. The major issue of this paper is to propose the method for quality estimation of speech recognition features that is based on metrics and does not require classification experiments. Experimental researches were made in context of Nearest neighbour classifier usage. Within the proposed method PLP was established to have the higher quality comparing to LFCC. The adequateness of the method was validated by Nearest neighbour classification error. Ill. 3, bibl. 25, tabl. 1 (in English; abstracts in English and Lithuanian).
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