@article{780211,
  abstract     = {{Over the past several decades, many acoustic markers have been proposed to be sensitive to and
measure overall voice quality. This meta-analysis presents a retrospective appraisal of scientific
reports, which evaluated the relation between perceived overall voice quality and several
acoustic-phonetic correlates. Twenty-five studies met the inclusion criteria and were evaluated using
meta-analytic techniques. Correlation coefficients between perceptual judgments and acoustic
measures were computed. Where more than one correlation coefficient for a specific acoustic marker
was available, a weighted average correlation coefficient was calculated. This was the case in 36
acoustic measures on sustained vowels and in 3 measures on continuous speech. Acoustic measures
were ranked according to the strength of the correlation with perceptual voice quality ratings.
Acoustic markers with more than one correlation value available in literature and yielding a
homogeneous weighted r of 0.60 or above were considered to be superior. The meta-analysis
identified four measures that met these criteria in sustained vowels and three measures in continuous
speech. Although acoustic measures are routinely utilized in clinical voice examinations, the results
of this meta-analysis suggest that caution is warranted regarding the concurrent validity and thus the
clinical utility of many of these measures.}},
  author       = {{Maryn, Youri and Roy, Nelson and De Bodt, Marc and Van Cauwenberge, Paul and Corthals, Paul}},
  editor       = {{Pierce, Allan D.}},
  issn         = {{0001-4966}},
  journal      = {{Journal of the Acoustical Society of America}},
  keywords     = {{voice quality,meta-analysis}},
  language     = {{eng}},
  number       = {{5}},
  pages        = {{2619--2634}},
  publisher    = {{American Institute of Physics}},
  title        = {{Acoustic measurement of overall voice quality: A meta-analysis}},
  url          = {{http://doi.org/10.1121/1.3224706}},
  volume       = {{126}},
  year         = {{2009}},
}

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