Modeling the effect of palate shape on the articulatory-acoustics mapping
نویسندگان
چکیده
Previous research [1, 2] shows that articulatory variability is reduced for people with flatter palates. It has been hypothesized [1] that this is because the mapping between articulation and acoustics is more linear for flatter than for more domed palates. A combination of two synthesizers were used to model how vocal tract anatomy influences the mapping of articulation onto acoustics, using American English /r/ as a test case. A retroflexable tongue tip was added to the articulatory parameters. Two additional palate shapes and a sublingual cavity that appears during /r/ production were also added to the synthesizer. A Python script searched the articulatory-acoustic space for vocal tract configurations that resulted in a low F3 (the hallmark acoustic cue for /r/) for each palate. Palate shape influences not only the overall sensitivity of the articulatory-acoustic mapping, but also the effect of each individual articulatory parameter on F3.
منابع مشابه
Automatic Classification of Palatal and Pharyngeal Wall Shape Categories from Speech Acoustics and Inverted Articulatory Signals
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