Non-invasive vocal-folds monitoring using electrical imaging methods

Thomas Hézard (1) , Thomas Hélie (1) , Boris Doval (2) , Nathalie Henrich Bernardoni (3, 4) , Malte Kob (5)

1 STMS - Sciences et Technologies de la Musique et du Son
2 DALEMBERT - Institut Jean Le Rond d'Alembert
3 GIPSA-GAMA - GIPSA - Group aeroacoustics, modeling and application
4 GIPSA-SLD - GIPSA - Systèmes Linguistiques et Dialectologie
5 HFM Detmold - University of Music Detmold

Many methods have been considered for human larynx imaging and especially vocalfolds monitoring. A widely-used non-invasive technology for vocal-folds monitoring is electroglottography (EGG), a technology based on impedance measurement of the larynx. Electrical impedance tomography (EIT) is another non-invasive electrical measurement method which attempts to reconstruct the conductivity map inside an object. It has been used in several human monitoring applications, and a theoretical study of EIT for vocal-folds monitoring has given promising results [8] but, to our knowledge, no device has been built. In our project, we aim at developing an innovative measurement system for vocal-folds monitoring using both EGG and EIT technologies. Two devices are currently under development. In this paper, we present a brief review of EGG and EIT technologies, the principles of the two new devices and the perspectives they offer for both medical and research fields.

Mots clés: electroglottography; EIT; vocal folds

Mots clés: plis vocaux

Domaines: Acoustique [physics.class-ph]; Acoustique [physics.class-ph]; Traitement du signal et de l'image [eess.SP]; Traitement du signal et de l'image [eess.SP]; Linguistique

Thomas Hézard, Thomas Hélie, Boris Doval, Nathalie Henrich Bernardoni, Malte Kob. Non-invasive vocal-folds monitoring using electrical imaging methods. 100 years of electrical imaging - workshop, Jul 2012, Paris, France. pp.1-4. ⟨hal-00769567⟩