Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/4792
Title: A comparative study of glottal source estimation techniques
Authors: Drugman, Thomas
Bozkurt, Barış
Dutoit, Thierry
Bozkurt, Barış
Izmir Institute of Technology. Electronics and Communication Engineering
Keywords: Glottal flow estimation
Inverse filtering
Mixed-phase decomposition
Voice quality
Source-tract separation
Issue Date: Jan-2012
Publisher: Elsevier Ltd.
Source: Drugman, T., Bozkurt, B., and Dutoit, T. (2012). A comparative study of glottal source estimation techniques. Computer Speech and Language, 26(1), 20-34. doi:10.1016/j.csl.2011.03.003
Abstract: Abstract: Source-tract decomposition (or glottal flow estimation) is one of the basic problems of speech processing. For this, several techniques have been proposed in the literature. However, studies comparing different approaches are almost nonexistent. Besides, experiments have been systematically performed either on synthetic speech or on sustained vowels. In this study we compare three of the main representative state-of-the-art methods of glottal flow estimation: closed-phase inverse filtering, iterative and adaptive inverse filtering, and mixed-phase decomposition. These techniques are first submitted to an objective assessment test on synthetic speech signals. Their sensitivity to various factors affecting the estimation quality, as well as their robustness to noise are studied. In a second experiment, their ability to label voice quality (tensed, modal, soft) is studied on a large corpus of real connected speech. It is shown that changes of voice quality are reflected by significant modifications in glottal feature distributions. Techniques based on the mixed-phase decomposition and on a closed-phase inverse filtering process turn out to give the best results on both clean synthetic and real speech signals. On the other hand, iterative and adaptive inverse filtering is recommended in noisy environments for its high robustness. © 2011 Elsevier Ltd. All rights reserved.
URI: http://doi.org/10.1016/j.csl.2011.03.003
http://hdl.handle.net/11147/4792
ISSN: 0885-2308
Appears in Collections:Electrical - Electronic Engineering / Elektrik - Elektronik Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
Sürdürülebilir Yeşil Kampüs Koleksiyonu / Sustainable Green Campus Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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