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https://hdl.handle.net/11147/2738
Title: | Glottal source estimation using an automatic chirp decomposition | Authors: | Drugman, Thomas Bozkurt, Barış Dutoit, Thierry |
Keywords: | Speech processing Mathematical transformations Unit circles Time alignment Root distribution |
Publisher: | Springer | Source: | Drugman, T., Bozkurt, B., and Dutoit, T. (2010). Glottal source estimation using an automatic chirp decomposition. Lecture Notes in Computer Science, 5933 LNAI, 35-42. doi:10.1007/978-3-642-11509-7_5 | Abstract: | In a previous work, we showed that the glottal source can be estimated from speech signals by computing the Zeros of the Z-Transform (ZZT). Decomposition was achieved by separating the roots inside (causal contribution) and outside (anticausal contribution) the unit circle. In order to guarantee a correct deconvolution, time alignment on the Glottal Closure Instants (GCIs) was shown to be essential. This paper extends the formalism of ZZT by evaluating the Z-transform on a contour possibly different from the unit circle. A method is proposed for determining automatically this contour by inspecting the root distribution. The derived Zeros of the Chirp Z-Transform (ZCZT)-based technique turns out to be much more robust to GCI location errors. © 2010 Springer-Verlag. | Description: | International Conference on Nonlinear Speech Processing, NOLISP 2009; Vic; Spain; 25 June 2009 through 27 June 2009 | URI: | http://doi.org/10.1007/978-3-642-11509-7_5 http://hdl.handle.net/11147/2738 |
ISBN: | 9783642115080 | ISSN: | 0302-9743 1611-3349 |
Appears in Collections: | Electrical - Electronic Engineering / Elektrik - Elektronik Mühendisliği Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection |
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