Fifth International Workshop on Models and Analysis of Vocal Emissions for Biomedical Applications (MAVEBA 2007)
Jitter is a fundamental metric of voice
quality. The majority of jitter estimators produce an
average value over a duration of several pitch periods.
This paper proposes a method for short-time jitter
measurement, based on a mathematical model which
describes the coupling of two periodic phenomena. The
movement of one of the two periodic phenomena with
respect to the other is what is considered as jitter and
what the proposed method measures. Through tests
with synthetic jitter signals it has been verified that
the suggested method provides accurate local estimates
of jitter. Further evaluation was conducted on actual
normal and pathological voice signals from the
Massachusetts Eye and Ear Infirmary (MEEI) Disordered
Voice Database. Compared with corresponding
parameters from the Multi-Dimension Voice Program
(MDVP) and the Praat system, the proposed method
outperformed both in normal vs. pathological voice
Index Terms. Jitter, short-time, pathological voice.
Full Paper (reprinted with permission from Firenze University Press)
Bibliographic reference. Vasilakis, Miltiadis / Stylianou, Yannis (2007): "A mathematical model for accurate measurement of jitter", In MAVEBA-2007, 7-10.