Abstract
Received June 15, 2012 Revised July 25, 2012 Accepted July 26, 2012 Address for correspondence Tack-Kyun Kwon, MD, PhD Department of Otorhinolaryngology, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul 110-744, Korea Tel +82-2-2072-0738 Fax +82-2-745-2387 E-mail kwontk@snu.ac.kr Background and ObjectivesZZWe aimed to develop a Korean version of the velopharyngeal insufficiency (VPI) speech corpus system. Subjects and MethodZZAfter developing a 3-channel simultaneous speech recording device capable of recording nasal/oral and normal compound speech separately, voice data were collected from VPI patients aged more than 10 years with/without the history of operation or prior speech therapy. This was compared to a control group for which VPI was simulated by using a french-3 nelaton tube inserted via both nostril through nasopharynx and pulling the soft palate anteriorly in varying degrees. The study consisted of three transcriptors: a speech therapist transcribed the voice file into text, a second transcriptor graded speech intelligibility and severity and the third tagged the types and onset times of misarticulation. The database were composed of three main tables regarding (1) speaker’s demographics, (2) condition of the recording system and (3) transcripts. All of these were interfaced with the Praat voice analysis program, which enables the user to extract exact transcribed phrases for analysis. ResultsZZIn the simulated VPI group, the higher the severity of VPI, the higher the nasalance score was obtained. In addition, we could verify the vocal energy that characterizes hypernasality and compensation in nasal/oral and compound sounds spoken by VPI patients as opposed to that characgerizes the normal control group. ConclusionZZWith the Korean version of VPI speech corpus system, patients’ common difficulties and speech tendencies in articulation can be objectively evaluated. Comparing these data with those of the normal voice, mispronunciation and dysarticulation of patients with VPI can be corrected. Korean J Otorhinolaryngol-Head Neck Surg 2012;55:498-507
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