Perceived auditory similarity and its acoustic correlates in twins and unrelated speakers
Melanie Weirich, Leonardo Lancia · Max Planck Digital Library · 2011
We conducted an AX-discrimination task to test for differences in perceived auditory similarity in monozygotic (MZ) and dizygotic (DZ) twin pairs and unrelated speakers. In addition, we performed acoustic analyses to find acoustic correlates that explain the differences in perceived similarity. Results indicate that unrelated speakers are significantly easier to distinguish than twins, but zygosity has no effect on perceived similarity. Moreover, pair-specific auditory similarity appears in twins and unrelated speakers and can be explained by the acoustic parameters F0, shimmer, jitter and HNR.