The knowledge of glottal closure and opening instants (GCI/GOI) is useful for many speech analysis applications. A Pitch-synchronous waveform encoding of voice is one such application. In this paper, a dynamic programming is employed to solve for the global close/open phase segmentation based on the polynomial parametric waveform of the derivative glottal waveform and its quasi-periodicity. Not only does the algorithm identify GCIs, but also the elusive GOIs, and as a by-product, the parameters of the glottal excitation waveform. The results show its effectiveness compared with a classical method. Its application to parametric voice encoding which allows for simple time-pitch scaling as well as voicing quality conversion is demonstrated.
Cite as: Jinachitra, P. (2006) Glottal closure and opening detection for flexible parametric voice coding. Proc. Interspeech 2006, paper 1359-Thu2BuP.2, doi: 10.21437/Interspeech.2006-622
@inproceedings{jinachitra06_interspeech,
author={Pamornpol Jinachitra},
title={{Glottal closure and opening detection for flexible parametric voice coding}},
year=2006,
booktitle={Proc. Interspeech 2006},
pages={paper 1359-Thu2BuP.2},
doi={10.21437/Interspeech.2006-622}
}