# Glottal Closure and Opening Instant Detection from Speech Signals

arXiv: https://arxiv.org/abs/2001.00841 · HTML: https://mlsanity.com/paper/2001.00841/

## Key facts

- Cited by 1 papers in the map (data through 14 Oct 2026).
- First posted on arXiv 28 Dec 2019.

## Built on by (most cited first, 1 of 1)

- [SAND Challenge: Four Approaches for Dysartria Severity Classification](https://mlsanity.com/paper/2512.02669/) (2025)

## Abstract (arXiv)

This paper proposes a new procedure to detect Glottal Closure and Opening Instants (GCIs and GOIs) directly from speech waveforms. The procedure is divided into two successive steps. First a mean-based signal is computed, and intervals where speech events are expected to occur are extracted from it. Secondly, at each interval a precise position of the speech event is assigned by locating a discontinuity in the Linear Prediction residual. The proposed method is compared to the DYPSA algorithm on the CMU ARCTIC database. A significant improvement as well as a better noise robustness are reported. Besides, results of GOI identification accuracy are promising for the glottal source characterization.