Fifth International Workshop on Models and Analysis of Vocal Emissions for Biomedical Applications (MAVEBA 2007)

Florence, Italy
December 13-15, 2007

Estimation of Vocal Noise and Cycle Duration Jitter in Connected Speech

A. Alpan (1), Francis Grenez (1), Jean Schoentgen (1,2)

(1) Laboratory of Images, Signals & Telecommunication Devices, Université Libre de Bruxelles, Brussels, Belgium
(2) National Fund for Scientific Research, Belgium

The objective is to describe analysis methods that enable tracking vocal dysperiodicities in running speech. Vocal dysperiodicities here refer to deviations from strict periodicity in voiced speech sounds. Two methods are described. They respectively enable the sample-by-sample extraction of vocal noise from the speech signal or the isolation of speech cycles in voiced segments to quantify perturbations of the cycle lengths and amplitudes (i.e. cycle duration jitter and amplitude shimmer). These methods share the property that they are not based on the assumption that the signal is locally periodic and that the average period length is known a priori.
Index Terms. Vocal noise, jitter, running speech

Full Paper (reprinted with permission from Firenze University Press)

Bibliographic reference.  Alpan, A. / Grenez, Francis / Schoentgen, Jean (2007): "Estimation of vocal noise and cycle duration jitter in connected speech", In MAVEBA-2007, 147-150.