Creation of unseen triphones from diphones and monophones using a speech production approach
1996 (English)Conference paper (Refereed)
With limited training data, infrequent triphone models for speech recognition will not be observed in sufficient number. In this report, a speech production approach is used to predict the characteristics of unseen triphones by concatenating diphones and/or monophones in the parametric representation of a formant speech synthesiser. The parameter trajectories are estimated by interpolation between the endpoints of the original units. The spectral states of the created triphone are generated by the speech synthesiser. Evaluation of the proposed technique has been performed using spectral error measurements and recognition candidate rescoring of N-best lists. In both cases, the created triphones are shown to perform better than the shorter units from which they were constructed. 1. INTRODUCTION The triphone unit is the basic phone model in many current phonetic speech recognition systems. The reason for this is that triphones capture the coarticulation effect caused by the immediate pr...
Place, publisher, year, edition, pages
1996. 2316-2319 p.
Computer and Information Science
IdentifiersURN: urn:nbn:se:kth:diva-91234OAI: oai:DiVA.org:kth-91234DiVA: diva2:508928
4th Intl Conference on Spoken Language Processing
NR 201408052012-03-112012-03-11Bibliographically approved