Estimating vocal-tract area functions from vowel sound signals over closed glottal phases

TitleEstimating vocal-tract area functions from vowel sound signals over closed glottal phases
Publication TypeConference Paper
Year of Publication2004
AuthorsDeng, H., R. K. Ward, M. P. Beddoes, and M. Hodgson
Conference NameAcoustics, Speech, and Signal Processing, 2004. Proceedings. (ICASSP '04). IEEE International Conference on
PaginationI - 589-92 vol.1
Date Publishedmay.
Keywordsclosed glottal phases, glottal wave, parameter estimation, signal processing, speech processing, speech signals, vocal-tract area functions, vocal-tract filters, vowel sound signals, VTF estimation
Abstract

Existing methods that estimate the vocal-tract area functions (VTAF) from vocal-tract filters (VTF) using speech signals suffer from inadequate elimination of the glottal wave, and the influence of non-ideal vocal-tract boundary conditions. To minimize these effects on the VTF estimation, we present a method that jointly estimates the glottal wave and the VTF corresponding to closed glottal phases. Experimental results show that our method yields better estimates. The VTAF obtained for /a/ and /i/ each produced by a female and a male subject show that more detailed and accurate VTAF are obtained using the speech signals corresponding to closed glottal phases.

URLhttp://dx.doi.org/10.1109/ICASSP.2004.1326054
DOI10.1109/ICASSP.2004.1326054

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