## Fifth International Workshop on Models and Analysis of Vocal Emissions for Biomedical Applications (MAVEBA 2007)## Florence, Italy |

(2) Department of Speech Communication and Voice Research, University of Tampere, Tampere, Finland

The study deals with mathematical modeling
of the vocal fold self-oscillations related to estimation
of the so-called output-cost-ratio (OCR), which is
computed from the numerically simulated sound
pressure level at the glottal level and the impact stress
(IS) during vocal folds collision. The dependence of
OCR on prephonatory glottal width, fundamental
frequency and lung pressure is discussed and partly
compared with a modified output cost ratio measured
in humans, where the closed quotient is used instead
of IS.
*Index Terms*. Biomechanics of voice, numerical
simulation of vocal folds vibration.

Full Paper (reprinted with permission from Firenze University Press)

__Bibliographic reference.__
Horáček, Jaromír / Laukkanen, A.-M. / Šidlof, P. (2007):
"Estimation of output-cost–ratio using an aeroelastic model of voice production",
In *MAVEBA-2007*, 105-108.