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Looking for an Objective Parameter to Identify Early Vocal Dysfunctions in Healthy Perceived Singers
Lucia Longo1, Diletta Angeletti1, Silvia Parrinello1
1Dipartimento Organi di Senso, Università Sapienza Roma, Rome, Italy.
Summary
Detecting minimal laryngeal dysfunctions in singers is crucial. Minimum sound emission intensity (I-min) is a reliable objective parameter for identifying these issues, aiding phoniatric evaluations.
Area of Science:
- Otolaryngology
- Speech and Language Pathology
- Vocal Pedagogy
Background:
- Early detection of minimal laryngeal dysfunctions in professional voice users is vital for preventing organic vocal pathologies.
- Objective parameters are needed to support phoniatric evaluations in identifying subtle laryngeal issues in singers.
Purpose of the Study:
- To identify an objective parameter that aids phoniatric evaluation in detecting minimal laryngeal dysfunctions in singers.
- To assess the utility of various voice parameters and the Singing Voice Handicap Index (SVHI) in differentiating healthy from dysfunctional singers.
Main Methods:
- Evaluated 54 singers (professional and non-professional) using laryngostroboscopy, Multi-Dimensional Voice Program (MDVP), Dysphonia Severity Index (DSI), maximum phonation time (TMF), minimum intensity of sound emission (I-min), maximum frequency (F-max), voice handicap index (VHI), singing voice handicap index (SVHI), manual phonogram, and audiometric examination.
- Compared objective voice parameters and subjective handicap scores between healthy and dysfunctional singer groups.
Main Results:
- No statistically significant difference was found between healthy and dysfunctional singers for SVHI scores (p=0.6).
- Most analyzed parameters (DSI, TMF, F-max, Jitter, Shimmer, NHR, SPI) showed no significant difference between groups.
- Minimum intensity of sound emission (I-min) was the only statistically significant parameter (p<0.05), indicating its potential as a diagnostic marker.
Conclusions:
- Singing Voice Handicap Index (SVHI) is useful for post-therapy evaluation but not for distinguishing healthy from dysfunctional singers.
- Minimum intensity of sound emission (I-min), measured with a sound level meter, is a reliable parameter for identifying minimal laryngeal dysfunctions in singers.
- I-min serves as a valuable tool to support the phoniatric diagnostic-therapeutic process for singers.
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