Presentation at the ANR "Chairs of excellence and post doctorate return meeting"
Résumé
This presentation is a summary of the two-year project supported by ANR with the title of "Establishing speech analysis platform with visualization and instrumentation (ESPVI)". The results from the project were presented briefly for the topics of laryngeal, articualtory, and aerodynamic instrumentation techniques. Techniques for high-speed imaging of vocal fold vibration and non-invasive photoglottography were advanced by the use of recent optoelectronic devices such as high-power infrared light emitting diodes (IR LEDs). Magnetic resonance imaging (MRI) technique was employed to record normal motion images and tagged motion images together in a session so that both motion imaging and point tracking can be performed. Surface electromyography was enabled by devising miniature suction electrodes. Sononasography was tested with small vibration sensors attached on the nasal wings. Simultaneous measurement of the oral and nasal airflow was permitted by inventing a dual-channel airflow mask.