Glotto Vibrato Graph: A Device and Method for Recording, Analysis and Visualization of Glottal Activity

Kishalay Chakraborty, Senjam Shantirani Devi, Sanjeevan Devnath, S R Mahadeva Prasanna, Priyankoo Sarmah


Opening and closing of the glottis is the primary and the most crucial step in converting airstream into speech sounds. The opening and closing process results in glottal vibration, filtered through the oral and nasal cavities to produce a variety of speech sounds. In this work we demonstrate the working of Glotto Vibrato Graph (GVG), that records, analyzes and visualizes the glottal activity with the help of a single low-cost hardwaresoftware package. The measurements are carried out by using piezo electric sensors to detect glottal vibration. A modular graphical computer software based on custom algorithm is used for the analysis and visualization. Results from the low cost GVG are comparable to results obtained from proprietary electroglottograph (EGG) devices.


Cite as: Chakraborty, K., Shantirani Devi, S., Devnath, S., Prasanna, S.R.M., Sarmah, P. (2018) Glotto Vibrato Graph: A Device and Method for Recording, Analysis and Visualization of Glottal Activity. Proc. Interspeech 2018, 2392-2393.


@inproceedings{Chakraborty2018,
  author={Kishalay Chakraborty and Senjam {Shantirani Devi} and Sanjeevan Devnath and S R Mahadeva Prasanna and Priyankoo Sarmah},
  title={Glotto Vibrato Graph: A Device and Method for Recording, Analysis and Visualization of Glottal Activity},
  year=2018,
  booktitle={Proc. Interspeech 2018},
  pages={2392--2393}
}