Acoustic Signs of Supraglottal Constriction in Pathological Voices
| dc.contributor.author | Lin, E. | |
| dc.contributor.author | Ormond, T. | |
| dc.contributor.author | Hornibrook, J. | |
| dc.contributor.author | Henderson, N. | |
| dc.date.accessioned | 2011-04-21T00:59:46Z | |
| dc.date.available | 2011-04-21T00:59:46Z | |
| dc.date.issued | 2010 | en |
| dc.description.abstract | Purpose: This study aims to identify the acoustic signs of supraglottal constriction and effects of some vocal manipulation techniques. It is hypothesized that some task-related acoustic contrasts would differ between voice patients with and without supraglottal constriction due to different vocal tract configurations. Method: Classified through videostroboscopic examinations, 30 participants were gender and age-matched to form two comparison groups (“constricted” and “non-constricted”), with five males and ten females in each group. Participants were asked to sustain a vowel (/a/ or /i/) for approximately three seconds in five tasks, including normal-pitch, low-pitch, high-pitch, /m/-onset (i.e., with the consonant /m/ preceding the vowel at normal pitch), and /h/-onset tasks. Acoustic signals were analyzed to extract measures from the mid-portion of the vowel. Results: The “constricted” group showed a lack of task-related contrasts on signal-to-noise ratio, singing power ratio, frequency of the second formant, and the amplitude difference between the first formant and the first harmonic. Conclusion: Further investigations are needed to assess the predictive power of the proposed task-based acoustic approach for detecting supraglottal constriction. | en |
| dc.identifier.citation | Lin, E., Ormond, T., Hornibrook, J., Henderson, N. (2010) Acoustic Signs of Supraglottal Constriction in Pathological Voices. Philadelphia, PA, USA: 2010 American Speech-Language-Hearing Association (ASHA) Convention, 18-20 Nov 2010. | en |
| dc.identifier.uri | http://hdl.handle.net/10092/5150 | |
| dc.language.iso | en | |
| dc.publisher | University of Canterbury. Communication Disorders | en |
| dc.rights.uri | https://hdl.handle.net/10092/17651 | en |
| dc.subject.anzsrc | Fields of Research::47 - Language, communication and culture::4701 - Communication and media studies::470101 - Communication studies | en |
| dc.subject.anzsrc | Field of Research::20 - Language, Communication and Culture::2004 - Linguistics | en |
| dc.title | Acoustic Signs of Supraglottal Constriction in Pathological Voices | en |
| dc.type | Conference Contributions - Other |
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