14th International Congress of Phonetic Sciences (ICPhS-14)

San Francisco, CA, USA
August 1-7, 1999

Measurement and Synthesis of the Vocal Tract of Korean Monophthongs by MRI

Byunggon Yang

Dongeui University, Korea

The author collected and compared midsagittal, coronal, coronal oblique, and transversal images of Korean monophthongs /a, i, e, o, u, ɨ, ʌ/ produced by a healthy male speaker by MRI. Then, area was measured by computer software after manually tracing the cross-section at different points along the tract. Results showed that the width of the oral and pharyngeal cavities varied compensatorily with each other on the midsagittal dimension. Formant frequency values estimated from the area functions showed a strong correlation with those analyzed from the spoken vowels. Moreover, almost all of 35 subjects who listened to the synthesized vowels using the formant values estimated from area data perceived the synthesized vowels as the equivalent spoken ones. The results may be helpful to verify an exact measurement of the vocal tract area through the vowel synthesis and to make a simulation study before any surgery on the abnormal vocal tract area.

Full Paper

Bibliographic reference.  Yang, Byunggon (1999): "Measurement and synthesis of the vocal tract of Korean monophthongs by MRI", In ICPhS-14, 2005-2008.