Acoustic Measurement of Overall Voice Quality: A Meta-Analysis
Journal of the Acoustical Society of America
Maryn, Y., Roy, N., et al. (2009).
Journal of the Acoustical Society of America, 126(5), 2619-2634.
This meta-analysis investigates acoustic-phonetic markers for overall voice quality and dysphonia severity in sustained vowels and connected speech in individuals.
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Quantitative studies (not further specified)
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Findings demonstrated that specific acoustic measures were superior measurements of overall voice quality.<br />
<ul>
<li>In sustained vowels, these included Pearson r at autocorrelation peak (r= 0.74) , pitch amplitude (r= 0.75), spectral flatness of residue signal (r= 0.69), and smoothed cepstral peak prominence (r=0.62).</li>
<li>In continuous speech these included signal-to-noise ratio from Qi (r= 0.69), cepstral peak prominence (r= 0.88), and smoothed cepstral peak prominence (r=0.88).</li>
</ul>
