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" Discrete mathematics and its applications / "
Kenneth H. Rosen, Monmouth University, and formerly AT&T Laboratories.
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AL
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| Record Number
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934732
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| Doc. No
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LA7g2174g1
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| Language of Document
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English
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| Main Entry
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Bakst, Sarah; Johnson, Keith
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| Title & Author
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Modeling the effect of palate shape on the articulatory-acoustics mapping [Article]\ Bakst, Sarah; Johnson, Keith
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| Title of Periodical
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UC Berkeley PhonLab Annual Report
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12
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| Date
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2016
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| Abstract
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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.
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