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An investigation of articulatory setting using real-time magnetic resonance imaging
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10.1121/1.4807639
/content/asa/journal/jasa/134/1/10.1121/1.4807639
http://aip.metastore.ingenta.com/content/asa/journal/jasa/134/1/10.1121/1.4807639

Figures

Image of FIG. 1.
FIG. 1.

(Color online) (a) Contour outlines extracted for each image of the vocal tract. Note the template definition such that each articulator is described by a separate contour. (b) A schematic depicting the concept of vocal tract area descriptors or VTADs [adapted from ]. These VTADs are bounded by cross-distances (depicted by white lines), and are, in order, from lips to glottis: lip aperture, tongue tip constriction degree, tongue dorsum constriction degree, velic aperture, tongue root constriction degree, and the epiglottal-pharyngeal wall cross-distance, respectively.

Image of FIG. 2.
FIG. 2.

(Color online) Schematic showing how the jaw angle (denoted by ) is computed.

Image of FIG. 3.
FIG. 3.

(Color online) Mean vocal tract images for all speakers calculated on all frames corresponding to different positions in the utterance and speaking style.

Tables

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TABLE I.

Articulatory measurement techniques and their relative effectiveness vis-a-vis AS research.

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TABLE II.

Phonetic context for all ISP instances extracted from all read speech utterances. Rows and columns represent preceding and succeeding phonetic context, respectively. Consonants (including stops, fricatives, affricates, and nasals) are categorized by place of articulation, while liquids are tabulated separately.

Generic image for table
TABLE III.

Phonetic context for all ISP instances extracted from all spontaneous speech utterances. Rows and columns represent preceding and succeeding phonetic context, respectively. Consonants (including stops, fricatives, affricates, and nasals) are categorized by place of articulation, while liquids are tabulated separately.

Generic image for table
TABLE IV.

Number of pause samples per speaker used in the statistical analysis.

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TABLE V.

Means and standard deviations of all VTADs, jaw angle (JA), lip aperture (LA), tongue tip constriction degree (TTCD), tongue dorsum constriction degree (TDCD), tongue root constriction degree (TRCD), and velic aperture (VEL) expressed as a proportion of variable range and rounded to two significant digits. Also shown are the results of performing pairwise comparisons between different levels of the fixed factor. If a pairwise test for a mean is statistically significant at the 95% level, we indicate this by . Similarly, if a pairwise test for a standard deviation is significant, is used.

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/content/asa/journal/jasa/134/1/10.1121/1.4807639
2013-07-11
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: An investigation of articulatory setting using real-time magnetic resonance imaging
http://aip.metastore.ingenta.com/content/asa/journal/jasa/134/1/10.1121/1.4807639
10.1121/1.4807639
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