Numerical investigation of effects of tongue articulation and velopharyngeal closure on the production of sibilant [s].

ABSTRACT: A numerical simulation of sibilant /s/ production with the realistically moving vocal tract was conducted to investigate the flow and acoustic characteristics during the articulation process of velopharyngeal closure and tongue movement. The articulation process was simulated from the end of /u/ to the middle of /s/ in the Japanese word /usui/, including the tongue elevation and the velopharyngeal valve closure. The time-dependent vocal tract geometry was reconstructed from the computed tomography scan. The moving immersed boundary method with the hierarchical structure grid was adopted to approach the complex geometry of the human speech organs. The acoustic characteristics during the co-articulation process were observed and consistent with the acoustic measurement for the subject of the

SUBMITTER: Lu H 

PROVIDER: S-EPMC9470661 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature