A physiological articulatory model for simulating speech production process.

  • Dang Jianwu
    ATR Human Information Processing Research Laboratories, 2–2 Hikaridai Seika-cho, Soraku-gun, Kyoto, 619–0288 Japan
  • Honda Kiyoshi
    ATR Human Information Processing Research Laboratories, 2–2 Hikaridai Seika-cho, Soraku-gun, Kyoto, 619–0288 Japan

Bibliographic Information

Other Title
  • physiological articulatory model for simulating speech production process
  • A physiological model of a dynamic vocal tract for speech production

Search this article

Description

A physiological articulatory model has been developed to simulate the dynamic actions of speech organs during speech production. This model represents the midsagittal region of the tongue, jaw, hyoid bone, and the vocal tract wall in three dimensions. The soft tissue of the tongue is outlined in the midsagittal and parasagittal planes of MR images obtained from a male Japanese speaker, and constructed as a 2-cm thick layer. The palatal and pharyngeal walls are constructed as a hard shell of a 3-cm left-to-right width. The jaw and hyoid bone are modelled to yield rotation and translation motions. The muscle structure in the model is identified based on volumetric MR images of the same speaker. A fast simulation method is developed by modeling both the soft tissue and rigid organs using mass-points with two types of links: viscoelastic springs with a proper stiffness for connective tissue, and extremely high stiffness for bony organs. Muscle activation signals are generated by a model control strategy based on the target-reaching task, and then fed to drive the model to approach the targets. The model demonstrated realistic behaviors similar to coarticulation in human speech production (Dang and Honda, 1998, 1999, 2000).

Journal

Citations (21)*help

See more

References(43)*help

See more

Details 詳細情報について

Report a problem

Back to top