Abstract
An experiment was conducted to identify the contribution of voice quality to perceived age. Voice quality effects were assessed in age estimation experiments using (1) natural pathological stimuli that incorporated voice qualities of interest and (2) young normal voices in which two voice cues, hoarseness and tremor, were modified through resynthesis. The disordered samples included single sentences from 227 talkers included in the Kay Elemetrics database of disordered samples. The resynthesized samples were sentences from ten young males in which (1) the f0 contour was multiplied by a random number within a fixed range (hoarseness) or (2) a 5–9‐Hz wave with an amplitude of 7.5% of the original f0 value was incorporated (tremor). Sixty navive listeners estimated all speakers ages in years. The results demonstrated that disordered voices were overestimated in age by 11 years, with the greatest mismatch in chronologic and perceived age reaching 47 years older. The addition of synthetic tremor and hoarseness...
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