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Spasmodic dysphonia, perceptual and acoustic analysis: presenting new diagnostic tools
Denise Irene Siemons-Lühring1, Mieke Moerman, Jean-Pierre Martens
1DSiemonsLuehring@web.de
Summary
The IINFVo perceptual scale and AMPEX acoustical analysis show promise for evaluating adductor spasmodic dysphonia (AdSD). These tools offer robust, complementary insights into voice quality and stability for AdSD assessment.
Area of Science:
- Speech and Hearing Sciences
- Clinical Acoustics
- Voice Disorders Research
Background:
- Adductor spasmodic dysphonia (AdSD) requires reliable evaluation methods.
- Existing perceptual and acoustical tools may have limitations in assessing AdSD.
Purpose of the Study:
- To assess the suitability of the IINFVo perceptual scale and AMPEX acoustical analysis for AdSD evaluation.
- To determine if these tools provide robust and complementary data for AdSD assessment.
Main Methods:
- Analysis of voice recordings from 12 AdSD patients.
- Evaluation of inter-rater and intra-rater consistency for the IINFVo scale.
- Assessment of AMPEX's reliability in analyzing vowels, running speech, and syllables.
Main Results:
- IINFVo demonstrated high inter-rater and intra-rater consistency, except for the 'Noise' parameter.
- AMPEX reliably analyzed vowels (PUVF correlation 0.748) and running speech (PVF correlation 0.699).
- Correlations between IINFVo and AMPEX ranged from 0.608 to 0.818, excluding noise.
Conclusions:
- The IINFVo scale and AMPEX analysis are potentially robust and complementary tools for AdSD evaluation.
- These methods provide valuable data on voice quality, fundamental frequency (F0) stability, and voiced/unvoiced transitions.
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