Marissa S. Barlaz

  • Citations Per Year
Learn More
PURPOSE To achieve high temporal frame rate, high spatial resolution and full-vocal-tract coverage for three-dimensional dynamic speech MRI by using low-rank modeling and sparse sampling. METHODS Three-dimensional dynamic speech MRI is enabled by integrating a novel data acquisition strategy and an image reconstruction method with the partial separability(More)
It has been shown that oral and nasal vowel pairs can differ substantially in their oro-pharyngeal configuration (besides the position of the velum), an effect that may lead to the enhancement of certain acoustic features associated with nasalization. We use real-time MRI to compare the lingual configuration of oral and nasal vowels in Brazilian Portuguese(More)
Dynamic speech magnetic resonance imaging (DSMRI) is a promising technique for visualizing articulatory motion in real time. However, many existing applications of DSMRI have been limited by slow imaging speed and the lack of quantitative motion analysis. In this paper, we present a novel DS-MRI technique to simultaneously estimate dynamic image sequence of(More)
Real-time MRI has become an increasingly useful tool in articulatory studies, especially in examining posterior regions of the vocal tract. Previous work on Brazilian Portugese has shown the emergence of coda consonants following word-final nasal vowels, though this has been limited to the discussion of front vowels and coda emergence in anterior regions of(More)
The phonemic inventory of Arabic includes sounds that involve a pharyngeal constriction. Sounds referred to as ‘pharyngeal’ (/ʕ/ and /ħ/) are reported to have a primary constriction in the pharynx, while sounds referred to as ‘pharyngealized’ (/sʕ/, /tʕ/, /dʕ/, and /ðʕ/ or /zʕ/) are reported to have a secondary constriction in the pharynx. Some studies(More)
  • 1