Technical information
Ultrasound imaging is used in phonetic research as a way to visualize dynamic images of the shape and movements of the tongue. The ultrasound probe is placed under the speaker’s chin. The visualization system converts the delay between sending and receiving the ultrasonic signal into images on a video screen, and thus makes it possible to see the shape of a large part of the tongue. The ultrasound system is used in experimental phonetic research and in teaching, as well as for clinical purposes with patients who have experienced a stroke or a glossectomy. The system is particularly suitable for speech therapy.
How to use
The following documents provide the information needed to set up the ultrasound system and make a recording using the AAA software.
h-2300-20-29392_dp6600_basic.pdf
mdp_demarrage_rapide_ultrason-mt-is-aa_17-12-133.pdf
Related scripts
To trace the contour of the tongue in the ultrasound data:
You can use the Edgetrak free software, which was developed at the University of Maryland, Baltimore.
An alternative is the Matlab script developed by Thibaut Fux during his postdoc at the LPP.
