EUROSPEECH 2001 Scandinavia
7th European Conference on Speech Communication and Technology

Aalborg, Denmark
September 3-7, 2001


Using Linguopalatal Contact Patterns to Tune a 3D Tongue Model

Olov Engwall

KTH, Sweden

The six articulatory parameters of a three-dimensional tongue model were adjusted to replicate linguopalatal contact patterns measured with Electropalatography (EPG). The tongue model is based on artificially sustained articulations measured with MRI and the EPG data provides one possibility to tune the parameters to dynamic speech. A 3D model was generated of the palate and the electrode distribution, allowing the synthetic contact patterns to be calculated. The tongue parameters were then adjusted to minimise the deviation from the natural contact patterns. Substantial reduction of the false and missing electrode contacts was made in the tuning and the synthetic linguopalatal contact pattern is shown to replicate the total characteristics of the natural patterns rather well. The remaining error is often due to lateral asymmetry or central-to-edge contact variations.

Full Paper

Bibliographic reference.  Engwall, Olov (2001): "Using linguopalatal contact patterns to tune a 3d tongue model", In EUROSPEECH-2001, 1475-1478.