Fifth International Workshop on Models and Analysis of Vocal Emissions for Biomedical Applications (MAVEBA 2007)
The velocity fields along a selfvibrating
physical model of vocal folds were
studied experimentally. The shape of the vocal
folds was specified according to data measured
on excised human larynges in phonation position.
The model was fabricated in 1:4 scale as
a silicone body vibrating in the wall of a plexiglass
wind tunnel. The model is not excited
externally and oscillates only due to coupling
with the flow. In addition to acoustic, subglottal
pressure and impact intensity measurements,
flow velocity fields were recorded in the coronal
plane using particle image velocimetry, in the
domain immediately above glottis. Analysis of
the PIV images taken within 25 phases of one
vibration cycle gives good insight into the dynamics
of the supraglottal flow.
Index Terms. glottal flow, physical model, PIV
Full Paper (reprinted with permission from Firenze University Press)
Bibliographic reference. Šidlof, P. / Doaré, Olivier / Cadot, Olivier / Chaigne, Antoine / Horáček, Jaromír (2007): "PIV measurements of velocity fields in glottis on a physical vocal fold model", In MAVEBA-2007, 177-180.