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Related Experiment Videos

[MRT sequences as a database for a visual articulatory model].

B J Kröger1, P Hoole, R Sader

  • 1Klinik für Phoniatrie, Pädaudiologie und Kommunikationsstörungen, Universitätsklinikum Aachen, Pauwelsstrasse 30, 52074 Aachen, Germany. bkroeger@ukaachen.de

HNO
|July 17, 2004
PubMed
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This study refines articulatory speech models using dynamic MRI data. Findings reveal significant vocalic context influence on consonant articulation, aiding speech disorder visualization and therapy.

Area of Science:

  • Speech Science
  • Medical Imaging
  • Phonetics

Background:

  • Articulatory models aid in visualizing speech disorders for education and therapy.
  • Previous models relied on static MRI data of sustained sounds.
  • Dynamic MRI sequences are crucial for refining models with speech movements.

Purpose of the Study:

  • To develop and refine an articulatory speech model using dynamic MRI data.
  • To investigate the influence of vocalic context on consonant articulation.
  • To present a method for reducing MRI data for analysis.

Main Methods:

  • Recorded medio-sagittal MRI sections of 12 consonants in [i:], [a:], [u:] vowel contexts.
  • Utilized a recording rate of eight images per second.
  • Developed a data reduction method for MRI analysis.

Related Experiment Videos

Main Results:

  • Demonstrated a strong influence of vocalic context on articulatory target positions for all consonants.
  • Quantified articulatory variations based on surrounding vowels.
  • Successfully applied a method for MRI data reduction.

Conclusions:

  • Dynamic MRI data significantly enhances articulatory model accuracy.
  • Understanding vocalic context effects is vital for accurate speech disorder modeling.
  • The presented data reduction method facilitates further analysis in phoniatrics.