SciELO - Scientific Electronic Library Online

vol.23 número2Metodología bayesiana para la optimización simultánea de múltiples respuestas índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados



Links relacionados


Información tecnológica

versión On-line ISSN 0718-0764


BRANDAO, Alexandre S; CATALDO, Edson  y  LETA, Fabiana R. Transmission Line Method applied to vocal tract acoustics through a 3D reconstructed model. Inf. tecnol. [online]. 2012, vol.23, n.2, pp. 167-180. ISSN 0718-0764.

The acoustic propagation in the human vocal tract using the Transmission Line Matrix method (TLM) has been simulated. Tri-dimensional meshes are built from segmented magnetic resonance images. Initially, simple models of one and two tubes were constructed to then simulate the same signal in a human vocal tract model whose shape represents the production of the open vowel /a/, simulating at the same time a human glottal signal. For the vocal tract model, the voice signals generated by the simulations were compared with voice samples from the same subject from whom the mesh was extracted. A compensation factor for the topology-dependent numerical dispersion for improving formant determination is proposed. It is concluded that the proposed compensation factor improves the effectiveness and accuracy of the TLV method.

Palabras clave : Transmission Line Method; Numerical Dispersion; Voice Production.

        · resumen en Español     · texto en Español     · Español ( pdf )


Creative Commons License Todo el contenido de esta revista, excepto dónde está identificado, está bajo una Licencia Creative Commons