The Dysphonia severity index: an objective measure of vocal quality based on a multiparameter approach.
The vocal quality of a patient is modeled by means of a Dysphonia Severity Index (DSI), which is designed to establish an objective and quantitative correlate of the perceived vocal quality. The DSI is based on the weighted combination of the following selected set of voice measurements: highest fre...
| Publicado en: | Journal of Speech, Language & Hearing Research Vol. 43; no. 3; pp. 796 - 810 |
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| Autores principales: | , , |
| Formato: | Artículo |
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American Speech-Language-Hearing Association
June 2000
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ssf&AN=507701957&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 507701957 longDbName: Social Sciences Full Text (H.W. Wilson) uiTag: AN controlInfo: bkinfo: jinfo: jid: 10924388 1SM jtl: Journal of Speech, Language & Hearing Research issn: 10924388 maglogo: N pubinfo: dt: June 2000 vid: 43 iid: 3 pid: 42 pub: American Speech-Language-Hearing Association artinfo: ui: 507701957 ppf: 796 ppct: 14 formats: fmt: – @attributes: type: T – @attributes: type: P size: 1.6MB tig: atl: The Dysphonia severity index: an objective measure of vocal quality based on a multiparameter approach. aug: au: Wuyts, Floris L. Bodt, Mars S. de Molenberghs, Geert su: Voice disorders Test reliability Test validity Diagnosis sug: subj: Voice disorders Test reliability Test validity Diagnosis ab: The vocal quality of a patient is modeled by means of a Dysphonia Severity Index (DSI), which is designed to establish an objective and quantitative correlate of the perceived vocal quality. The DSI is based on the weighted combination of the following selected set of voice measurements: highest frequency (F0-High in Hz), lowest intensity (I-Low in dB), maximum phonation time (MPT in s), and jitter (%). The DSI is derived from a multivariate analysis of 387 subjects with the goal of describing, purely based on objective measures, the perceived voice quality. It is constructed as DSI = 0.13 × MPT + 0.0053 × F0-High - 0.26 × I-Low - 1.18 × Jitter (%) + 12.4. The DSI for perceptually normal voices equals +5 and for severely dysphonic voices -5. The more negative the patient's index, the worse is his or her vocal quality. As such, the DSI is especially useful to evaluate therapeutic evolution of dysphonic patients. Additionally, there is a high correlation between the DSI and the Voice Handicap Index score. Reprinted by permission of the publisher. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
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