Undergraduate Thesis: The effects of vocal intensity on vocal attack time (VAT)
| Title | The effects of vocal intensity on vocal attack time (VAT) |
|---|---|
| Authors | Lee, Tsz-yan, Taro 李芷茵 |
| Issue Date | 2010 |
| Publisher | The University of Hong Kong (Pokfulam, Hong Kong) |
| Abstract | Vocal attack time (VAT), is a parameter which could provide information about vocal folds attack gesture during pre-phonatory phase. The aim of the present study was to investigate the effects of vocal intensity on VAT. Simultaneously, sound pressure level and electroglottographic signals were collected from 50 participants (25 females and 25 males). The participants were asked to read aloud 12 disyllabic word stimuli using three different intensity levels, comfortable intensity first, then soft intensity and finally loud intensity. The data collected were then subjected to calculation of VAT values using a Matlab-based analysis program. Results indicated that both female and male participants demonstrated the shortest VAT values at loud intensity but the longest VAT values at soft intensity. Both gender groups show similar performance across the three intensity levels. This study provides some empirical data to support the use of VAT as a clinical tool for voice assessment. |
| Description | "A dissertation submitted in partial fulfillment of the requirements for the Bachelor of Science (Speech and Hearing Sciences), The University of Hong Kong, June 30, 2010." Includes bibliographical references (p. 23-24). Thesis (B.Sc)--University of Hong Kong, 2010. |
| Degree | Bachelor of Science in Speech and Hearing Sciences |
| Subject | Voice -- Measurement. |
| Dept/Program | Speech and Hearing Sciences |
| dc.contributor.author | Lee, Tsz-yan, Taro |
|---|---|
| dc.contributor.author | 李芷茵 |
| dc.date.accessioned | 2012-11-01T01:14:07Z |
| dc.date.available | 2012-11-01T01:14:07Z |
| dc.date.issued | 2010 |
| dc.description.abstract | Vocal attack time (VAT), is a parameter which could provide information about vocal folds attack gesture during pre-phonatory phase. The aim of the present study was to investigate the effects of vocal intensity on VAT. Simultaneously, sound pressure level and electroglottographic signals were collected from 50 participants (25 females and 25 males). The participants were asked to read aloud 12 disyllabic word stimuli using three different intensity levels, comfortable intensity first, then soft intensity and finally loud intensity. The data collected were then subjected to calculation of VAT values using a Matlab-based analysis program. Results indicated that both female and male participants demonstrated the shortest VAT values at loud intensity but the longest VAT values at soft intensity. Both gender groups show similar performance across the three intensity levels. This study provides some empirical data to support the use of VAT as a clinical tool for voice assessment. |
| dc.description.nature | published_or_final_version |
| dc.description | "A dissertation submitted in partial fulfillment of the requirements for the Bachelor of Science (Speech and Hearing Sciences), The University of Hong Kong, June 30, 2010." |
| dc.description | Includes bibliographical references (p. 23-24). |
| dc.description | Thesis (B.Sc)--University of Hong Kong, 2010. |
| dc.description.thesisdiscipline | Speech and Hearing Sciences |
| dc.description.thesislevel | Bachelor's |
| dc.description.thesisname | Bachelor of Science in Speech and Hearing Sciences |
| dc.identifier.hkul | b4813147 |
| dc.identifier.uri | http://hdl.handle.net/10722/173717 |
| dc.language | eng |
| dc.publisher | The University of Hong Kong (Pokfulam, Hong Kong) |
| dc.rights | Creative Commons: Attribution 3.0 Hong Kong License |
| dc.rights | The author retains all proprietary rights, (such as patent rights) and the right to use in future works. |
| dc.subject.lcsh | Voice -- Measurement. |
| dc.title | The effects of vocal intensity on vocal attack time (VAT) |
| dc.type | UG_Thesis |