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ERIC Number: EJ961975
Record Type: Journal
Publication Date: 2010-Sep
Pages: 17
Abstractor: As Provided
ISSN: ISSN-0269-9206
Quantifying Dysphonia Severity Using a Spectralcepstral-Based Acoustic Index: Comparisons with Auditory-Perceptual Judgements from the CAPE-V
Awan, Shaheen N.; Roy, Nelson; JettE, Marie E.; Meltzner, Geoffrey S.; Hillman, Robert E.
Clinical Linguistics & Phonetics, v24 n9 p742-758 Sep 2010
This study investigated the relationship between acoustic spectral/cepstral measures and listener severity ratings in normal and disordered voice samples. CAPE-V sentence samples and the vowel /[script]/were elicited from eight normal speakers and 24 patients with varying degrees of dysphonia severity. Samples were analysed for measures of the cepstral peak prominence (CPP), the ratio of low-to-high spectral energy, and their respective standard deviations. Perceptual ratings of overall severity were also obtained for all samples. Results showed that all acoustic variables combined in a four-factor model which correlated with perceived severity with R = 0.81 (R[superscript 2] = 0.65). For the vowel /[script]/, a five-factor model incorporating all acoustic variables and gender correlated with perceived severity with R = 0.96 (R[superscript 2] = 0.91). Results indicate that a strong relationship between perceptual and acoustic estimates of dysphonia severity can be achieved in both continuous speech and vowel contexts using a model incorporating spectral/cepstral measures. (Contains 4 tables and 4 figures.)
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A