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The dysphonia severity index : an objective measure of vocal quality based on a multiparameter approach

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Abstract
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 (F-0-High in Hz), lowest intensity (I-Low in dB), maximum phonation time (Mm 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 x MPT + 0.0053 x F-0-High - 0.26 x I-Low - 1.18 x 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.
Keywords
CLASSIFICATION, VOICE QUALITY, voice quality, voice assessment, acoustic, voice range profile, index

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Chicago
Wuyts, FL, Marc De Bodt, G Molenberghs, Marc Remacle, Louise Heylen, B Millet, Kristiane Van Lierde, J Raes, and Paul H Van de Heyning. 2000. “The Dysphonia Severity Index : an Objective Measure of Vocal Quality Based on a Multiparameter Approach.” Journal of Speech Language and Hearing Research 43 (3): 796–809.
APA
Wuyts, FL, De Bodt, M., Molenberghs, G., Remacle, M., Heylen, L., Millet, B., Van Lierde, K., et al. (2000). The dysphonia severity index : an objective measure of vocal quality based on a multiparameter approach. JOURNAL OF SPEECH LANGUAGE AND HEARING RESEARCH, 43(3), 796–809.
Vancouver
1.
Wuyts F, De Bodt M, Molenberghs G, Remacle M, Heylen L, Millet B, et al. The dysphonia severity index : an objective measure of vocal quality based on a multiparameter approach. JOURNAL OF SPEECH LANGUAGE AND HEARING RESEARCH. 2000;43(3):796–809.
MLA
Wuyts, FL, Marc De Bodt, G Molenberghs, et al. “The Dysphonia Severity Index : an Objective Measure of Vocal Quality Based on a Multiparameter Approach.” JOURNAL OF SPEECH LANGUAGE AND HEARING RESEARCH 43.3 (2000): 796–809. Print.
@article{171621,
  abstract     = {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 (F-0-High in Hz), lowest intensity (I-Low in dB), maximum phonation time (Mm 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 x MPT + 0.0053 x F-0-High - 0.26 x I-Low - 1.18 x 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.},
  author       = {Wuyts, FL and De Bodt, Marc and Molenberghs, G and Remacle, Marc and Heylen, Louise and Millet, B and Van Lierde, Kristiane and Raes, J and Van de Heyning, Paul H},
  issn         = {1092-4388},
  journal      = {JOURNAL OF SPEECH LANGUAGE AND HEARING RESEARCH},
  language     = {eng},
  number       = {3},
  pages        = {796--809},
  title        = {The dysphonia severity index : an objective measure of vocal quality based on a multiparameter approach},
  volume       = {43},
  year         = {2000},
}

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