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http://hdl.handle.net/1942/369
Title: | The Dysphonia Severity Index: An Objective Measure of Vocal Quality Based on a Multiparameter Approach | Authors: | Wuyts, Floris De Bodt, Marc MOLENBERGHS, Geert Remacle, M. Heylen, Louis Millet, B. Van Lierde, C. Raes, J. Van de Heyning, Paul |
Issue Date: | 2000 | Publisher: | AMER SPEECH-LANGUAGE-HEARING ASSOC | Source: | Journal of Speech Language and Hearing Research, 43(3). p. 796-809 | 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 (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. | Keywords: | voice quality; voice assessment; acoustic; voice range profile; index | Document URI: | http://hdl.handle.net/1942/369 | Link to publication/dataset: | https://www.researchgate.net/publication/12442421_The_Dysphonia_Severity_Index_An_Objective_Measure_of_Vocal_Quality_Based_on_a_Multiparameter_Approach | ISSN: | 1092-4388 | e-ISSN: | 1558-9102 | ISI #: | 000087579400017 | Category: | A1 | Type: | Journal Contribution | Validations: | ecoom 2001 |
Appears in Collections: | Research publications |
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DSI.pdf Restricted Access | Published version | 1.69 MB | Adobe PDF | View/Open Request a copy |
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