Abstract
The Acoustic Voice Quality Index (AVQI) is a relatively new clinical method to quantify dysphonia severity. Since it partially relies on continuous speech, its performance may vary with voice-related phonetic differences and thus across languages. The present investigation therefore assessed the AVQI’s performance in English, Dutch, German, and French. Fifty subjects were recorded reading sentences in the four languages, as well as producing a sustained vowel. These recordings were later edited to calculate the AVQI. The samples were also perceptually rated on overall dysphonia severity by three experienced voice clinicians. The AVQI’s cross-linguistic concurrent validity and diagnostic precision were assessed. The results support earlier data, and confirm good cross-linguistic validity and diagnostic accuracy. Although no statistical differences were observed between languages, the AVQI performed better in English and German and less well in French. These results validate the AVQI as a potentially robust and objective dysphonia severity measure across languages.
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Acknowledgments
The authors thank Dr. Gwen Van Nuffelen (Department of Communication Disorders, University Hospital of Antwerp, Belgium) for her contributions in the perceptual rating of the many concatenated voice samples.
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The study followed the principles of the Declaration of Helsinki. The authors report no declarations of interest.
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Appendix: Number of syllables and phonetic transcriptions of the six sentences that were analyzed in this study
Appendix: Number of syllables and phonetic transcriptions of the six sentences that were analyzed in this study
Dutch sample number 1—Du1—17 syllables
“Papa en Marloes staan op het station. Ze wachten op de trein.”
Dutch sample number 2—Du2—22 syllables
“De noorderwind en de zon waren erover aan het redetwisten wie de sterkste was van hun beiden.”
English sample number 3—En3—18 syllables
“The north wind and the sun were arguing 1 day which of them was stronger.”
English sample number 4—En4—19 syllables
“When light strikes raindrops in the air, they act like a prism and form a rainbow.”
German sample number 5—Ge5—22 syllables
“Einst stritten sich Nordwind und Sonne, wer von Ihnen beiden woll der stärkere wäre.”
French sample number 6—Fr6—21 syllables
“La bise et le soleil se disputaient, chacun assurant qu’il était le plus fort.”
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Maryn, Y., De Bodt, M., Barsties, B. et al. The value of the Acoustic Voice Quality Index as a measure of dysphonia severity in subjects speaking different languages. Eur Arch Otorhinolaryngol 271, 1609–1619 (2014). https://doi.org/10.1007/s00405-013-2730-7
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DOI: https://doi.org/10.1007/s00405-013-2730-7