title: Automatic quantitative analysis of ultrasound tongue contours via wavelet-based functional mixed models.
abstract: This paper illustrates the application of wavelet-based functional mixed models to automatic quantification of differences between tongue contours obtained through ultrasound imaging. The reliability of this method is demonstrated through the analysis of tongue positions recorded from a female and a male speaker at the onset of the vowels /a/ and /i/ produced in the context of the consonants /t/ and /k/. The proposed method allows detection of significant differences between configurations of the articulators that are visible in ultrasound images during the production of different speech gestures and is compatible with statistical designs containing both fixed and random terms.
authors.affiliation: Department of Linguistics, Max Planck Institute for Evolutionary Anthropology, Deutscher Platz 6, 04103 Leipzig, Germany leonardo_lancia@eva.mpg.de.
authors.forename: Leonardo
authors.initials: L
authors.lastname: Lancia
authors.affiliation: Berlin School of Mind and Brain, Department of German Studies and Linguistics, Humboldt Universität zu Berlin, Wolfgang Köhler-Haus, Rudower Chaussee 18, 12489 Berlin, Germany philip.rausch@hu-berlin.de.
authors.forename: Philip
authors.initials: P
authors.lastname: Rausch
authors.affiliation: Department of Biostatistics, The University of Texas, M.D. Anderson Cancer Center, Houston, Texas 77230 jefmorris@mdanderson.org.
authors.forename: Jeffrey S
authors.initials: JS
authors.lastname: Morris
mesh_terms: D057205:Automation, Laboratory; D001696:Biomechanical Phenomena; D005260:Female; D006801:Humans; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D008297:Male; D008390:Markov Chains; D015233:Models, Statistical; D009010:Monte Carlo Method; D015203:Reproducibility of Results; D013061:Speech Acoustics; D013068:Speech Production Measurement; D013997:Time Factors; D014059:Tongue / Q000000981:diagnostic imaging*; D014463:Ultrasonography; D014833:Voice Quality