Abstract
The GRBAS scale is a widely used method for perceptual evaluation of voice quality. Two linguistically diverse groups of listeners (Japanese and American) rated 35 voice samples using the GRBAS scale. The ratings obtained from the two groups were compared to determine if the different linguistic background affected the use of the GRBAS scale. Results show that there are no significant differences between the Japanese and American listeners in the use of the Grade, Roughness and Breathiness scales. Ratings on the Asthenia and Strain scales, however, were different between the two groups of listeners. Despite these discrepancies, the GRBAS scale may be an excellent tool for perceptual evaluation of voice quality by linguistically diverse groups.
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