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Accuracy of the Listeners' Estimation of the Speakers' Body Weight and Height Based Solely on the Voice Signal
The aim of this study was to investigate the accuracy of listeners' estimation of physical characteristics such as body weight and body height from voice signals alone. A series of listening tasks was carried out in which 20 adult male listeners judged body weight and height from 20 adult male speakers' voice samples. Additionally, listeners' perception of the speakers' voice pitch was compared to actual voice pitch measured as fundamental frequency (F0) in Hz. The results of Pearson and Spearman correlation coefficients calculations indicated that the listeners' estimation of body weight and height was in negative correlation with actual physical parameters of the speakers. In point of fact, it was shown that listeners held a certain vocal stereotype about physical characteristics where lower pitch of the voice was taken as an indicator of larger body weight and height, and vice versa.
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